Add option to force E2EE encryption preference

Enabling this option ignores Autocrypt recommendation taking others encryption preferences into account and overrides it with our own encryption preference when possible. This is similar to user always manually enabling/disabling encryption manually in a classic Autocrypt-capable MUA UI whenever the control is not disabled. The goal is to allow encrypting responses to MUAs which can send Autocrypt header but don't support setting encryption preference, such as Thunderbird 91.
2026-06-28 02:26:35 +03:00 · 2021-11-28 16:32:18 +00:00
152 changed files with 7900 additions and 14957 deletions
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -3,7 +3,7 @@ updates:
  - package-ecosystem: "cargo"
    directory: "/"
    schedule:
-      interval: "monthly"
+      interval: "daily"
    commit-message:
      prefix: "cargo"
-    open-pull-requests-limit: 50
+    open-pull-requests-limit: 10
--- a/.github/mergeable.yml
+++ b/.github/mergeable.yml
@@ -1,26 +0,0 @@
-version: 2
-mergeable:
-  - when: pull_request.*
-    name: "Changelog check"
-    validate:
-      - do: or
-        validate:
-        - do: description
-          must_include:
-            regex: '#skip-changelog'
-        - do: and
-          validate:
-            - do: dependent
-              changed:
-                file: 'src/**'
-                required: ['CHANGELOG.md']
-            - do: dependent
-              changed:
-                file: 'deltachat-ffi/**'
-                required: ['CHANGELOG.md']
-    fail:
-      - do: checks
-        status: 'action_required' 
-        payload:
-          title: Changlog might need an update
-          summary: "Check if CHANGELOG.md needs an update or add #skip-changelog to the PR description."
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,9 +8,6 @@ on:
      - staging
      - trying

-env:
-  RUSTFLAGS: -Dwarnings
-
 jobs:

  fmt:
@@ -24,8 +21,6 @@ jobs:
          toolchain: stable
          override: true
      - run: rustup component add rustfmt
-      - name: Cache rust cargo artifacts
-        uses: swatinem/rust-cache@v1
      - uses: actions-rs/cargo@v1
        with:
          command: fmt
@@ -40,12 +35,10 @@ jobs:
            toolchain: stable
            components: clippy
            override: true
-      - name: Cache rust cargo artifacts
-        uses: swatinem/rust-cache@v1
      - uses: actions-rs/clippy-check@v1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
-          args: --workspace --tests --examples --benches
+          args: --workspace --tests --examples

  docs:
    name: Rust doc comments
@@ -77,19 +70,19 @@ jobs:
        include:
          # Currently used Rust version, same as in `rust-toolchain` file.
          - os: ubuntu-latest
-            rust: 1.60.0
+            rust: 1.54.0
            python: 3.9
          - os: windows-latest
-            rust: 1.60.0
+            rust: 1.54.0
            python: false # Python bindings compilation on Windows is not supported.

-          # Minimum Supported Rust Version = 1.56.0
+          # Minimum Supported Rust Version = 1.51.0
          #
          # Minimum Supported Python Version = 3.7
          # This is the minimum version for which manylinux Python wheels are
          # built.
          - os: ubuntu-latest
-            rust: 1.56.0
+            rust: 1.51.0
            python: 3.7
    runs-on: ${{ matrix.os }}
    steps:
@@ -101,14 +94,31 @@ jobs:
        toolchain: ${{ matrix.rust }}
        override: true

-    - name: Cache rust cargo artifacts
-      uses: swatinem/rust-cache@v1
+    - name: Cache cargo registry
+      uses: actions/cache@v2
+      with:
+        path: ~/.cargo/registry
+        key: ${{ matrix.os }}-${{ matrix.rust }}-cargo-registry-${{ hashFiles('**/Cargo.toml') }}
+
+    - name: Cache cargo index
+      uses: actions/cache@v2
+      with:
+        path: ~/.cargo/git
+        key: ${{ matrix.os }}-${{ matrix.rust }}-cargo-index-${{ hashFiles('**/Cargo.toml') }}
+
+    - name: Cache cargo build
+      uses: actions/cache@v2
+      with:
+        path: target
+        key: ${{ matrix.os }}-${{ matrix.rust }}-cargo-build-target-${{ hashFiles('**/Cargo.toml') }}

    - name: check
      uses: actions-rs/cargo@v1
+      env:
+        RUSTFLAGS: -D warnings
      with:
        command: check
-        args: --all --bins --examples --tests --features repl --benches
+        args: --all --bins --examples --tests --features repl

    - name: tests
      uses: actions-rs/cargo@v1
--- a/.github/workflows/dependabot.yml
+++ b/.github/workflows/dependabot.yml
@@ -1,21 +0,0 @@
-name: Dependabot auto-approve
-on: pull_request
-
-permissions:
-  pull-requests: write
-
-jobs:
-  dependabot:
-    runs-on: ubuntu-latest
-    if: ${{ github.actor == 'dependabot[bot]' }}
-    steps:
-      - name: Dependabot metadata
-        id: metadata
-        uses: dependabot/fetch-metadata@v1.1.1
-        with:
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
-      - name: Approve a PR
-        run: gh pr review --approve "$PR_URL"
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
--- a/.github/workflows/upload-docs.yml
+++ b/.github/workflows/upload-docs.yml
@@ -1,28 +0,0 @@
-name: Build & Deploy Documentation on rs.delta.chat
-
-on:
-  push:
-    branches:
-      - master
-      - docs-gh-action
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-    - uses: actions-rs/toolchain@v1
-    - name: Build the documentation with cargo
-      run: |
-        cargo doc --package deltachat --no-deps
-    - name: Upload to rs.delta.chat
-      uses: up9cloud/action-rsync@v1.3
-      env:
-        USER: ${{ secrets.USERNAME }}
-        KEY: ${{ secrets.KEY }}
-        HOST: "delta.chat"
-        SOURCE: "target/doc"
-        TARGET: "/var/www/html/rs/"
-
--- a/.github/workflows/upload-ffi-docs.yml
+++ b/.github/workflows/upload-ffi-docs.yml
@@ -1,28 +0,0 @@
-name: Build & Deploy Documentation on cffi.delta.chat
-
-on:
-  push:
-    branches:
-      - master
-      - docs-gh-action
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-    - uses: actions-rs/toolchain@v1
-    - name: Build the documentation with cargo
-      run: |
-        cargo doc --package deltachat_ffi --no-deps
-    - name: Upload to cffi.delta.chat
-      uses: up9cloud/action-rsync@v1.3
-      env:
-        USER: ${{ secrets.USERNAME }}
-        KEY: ${{ secrets.KEY }}
-        HOST: "delta.chat"
-        SOURCE: "target/doc"
-        TARGET: "/var/www/html/cffi/"
-
--- a/.gitignore
+++ b/.gitignore
@@ -29,7 +29,3 @@ deltachat-ffi/xml

 coverage/
 .DS_Store
-.vscode/launch.json
-python/accounts.txt
-python/all-testaccounts.txt
-tmp/
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,219 +1,5 @@
 # Changelog

-## 1.79.0
-
-### Changes
- Send locations in the background regardless of SMTP loop activity #3247
- refactorings #3268
- improve tests and ci #3266 #3271
-
-### Fixes
- simplify `dc_stop_io()` and remove potential panics and race conditions #3273
- fix correct message escaping consisting of a dot in SMTP protocol #3265
-
-
-## 1.78.0
-
-### API-Changes
- replaced stock string `DC_STR_ONE_MOMENT` by `DC_STR_NOT_CONNECTED` #3222
- add `dc_resend_msgs()` #3238
- `dc_provider_new_from_email()` does no longer do an DNS lookup for checking custom domains,
-  this is done by `dc_provider_new_from_email_with_dns()` now #3256
-
-### Changes
- introduce multiple self addresses with the "configured" address always being the primary one #2896
- Further improve finding the correct server after logging in #3208
- `get_connectivity_html()` returns HTML as non-scalable #3213
- add update-serial to `DC_EVENT_WEBXDC_STATUS_UPDATE` #3215
- Speed up message receiving via IMAP a bit #3225
- mark messages as seen on IMAP in batches #3223
- remove Received: based draft detection heuristic #3230
- Use pkgconfig for building Python package #2590
- don't start io on unconfigured context #2664
- do not assign group IDs to ad-hoc groups #2798
- dynamic libraries use dylib extension on Darwin #3226
- refactorings #3217 #3219 #3224 #3235 #3239 #3244 #3254
- improve documentation #3214 #3220 #3237
- improve tests and ci #3212 #3233 #3241 #3242 #3252 #3250 #3255 #3260
-
-### Fixes
- Take `delete_device_after` into account when calculating ephemeral loop timeout #3211 #3221
- Fix a bug where a blocked contact could send a contact request #3218
- Make sure, videochat-room-names are always URL-safe #3231
- Try removing account folder multiple times in case of failure #3229
- Ignore messages from all spam folders if there are many #3246
- Hide location-only messages instead of displaying empty bubbles #3248
-
-
-## 1.77.0
-
-### API changes
- change semantics of `dc_get_webxdc_status_updates()` second parameter
-  and remove update-id from `DC_EVENT_WEBXDC_STATUS_UPDATE` #3081
-
-### Changes
- add more SMTP logging #3093
- place common headers like `From:` before the large `Autocrypt:` header #3079
- keep track of securejoin joiner status in database to survive restarts #2920
- remove never used `SentboxMove` option #3111
- improve speed by caching config values #3131 #3145
- optimize `markseen_msgs` #3141
- automatically accept chats with outgoing messages #3143
- `dc_receive_imf` refactorings #3154 #3156 #3159
- add index to speedup deletion of expired ephemeral messages #3155
- muted chats stay archived on new messages #3184
- support `min_api` from Webxdc manifests #3206
- do not read whole webxdc file into memory #3109
- improve tests, refactorings #3073 #3096 #3102 #3108 #3139 #3128 #3133 #3142 #3153 #3151 #3174 #3170 #3148 #3179 #3185
- improve documentation #2983 #3112 #3103 #3118 #3120
-
-### Fixes
- speed up loading of chat messages by a factor of 20 #3171 #3194 #3173
- fix an issue where the app crashes when trying to export a backup #3195
- hopefully fix a bug where outgoing messages appear twice with Amazon SES #3077
- do not delete messages without Message-IDs as duplicates #3095
- assign replies from a different email address to the correct chat #3119
- assing outgoing private replies to the correct chat #3177
- start ephemeral timer when seen status is synchronized via IMAP #3122
- do not create empty contact requests with "setup changed" messages;
-  instead, send a "setup changed" message into all chats we share with the peer #3187
- do not delete duplicate messages on IMAP immediately to accidentally deleting
-  the last copy #3138
- clear more columns when message expires due to `delete_device_after` setting #3181
- do not try to use stale SMTP connections #3180
- slightly improve finding the correct server after logging in #3207
- retry message sending automatically if loop is not interrupted #3183
- fix a bug where sometimes the file extension of a long filename containing a dot was cropped #3098
-
-
-## 1.76.0
-
-### Changes
- move messages in batches #3058
- delete messages in batches #3060
- python: remove arbitrary timeouts from tests #3059
- refactorings #3026
-
-### Fixes
- avoid archived, fresh chats #3053
- Also resync UIDs in folders that are not configured #2289
- treat "NO" IMAP response to MOVE and COPY commands as an error #3058
- Fix a bug where messages in the Spam folder created contact requests #3015
- Fix a bug where drafts disappeared after some days #3067
- Parse MS Exchange read receipts and mark the original message as read #3075
- do not retry message sending infinitely in case of permanent SMTP failure #3070
- set message state to failed when retry limit is exceeded #3072
-
-
-## 1.75.0
-
-### Changes
- optimize `delete_expired_imap_messages()` #3047
-
-
-## 1.74.0
-
-### Fixes
- avoid reconnection loop when message without Message-ID is marked as seen #3044
-
-
-## 1.73.0
-
-### API changes
- added `only_fetch_mvbox` config #3028
-
-### Changes
- don't watch Sent folder by default #3025
- use webxdc app name in chatlist/quotes/replies etc. #3027
- make it possible to cancel message sending by removing the message #3034,
-  this was previosuly removed in 1.71.0 #2939
- synchronize Seen flags only on watched folders to speed up
-  folder scanning #3041
- remove direct dependency on `byteorder` crate #3031
- refactorings #3023 #3013
- update provider database #3043
- improve documentation #3017 #3018 #3021
-
-### Fixes
- fix splitting off text from webxdc messages #3032
- call slow `delete_expired_imap_messages()` less often #3037
- make synchronization of Seen status more robust in case unsolicited FETCH
-  result without UID is returned #3022
- fetch Inbox before scanning folders to ensure iOS does
-  not kill the app before it gets to fetch the Inbox in background #3040
-
-
-## 1.72.0
-
-### Fixes
- run migrations on backup import #3006
-
-
-## 1.71.0
-
-### API Changes
- added APIs to handle database passwords: `dc_context_new_closed()`, `dc_context_open()`,
-  `dc_context_is_open()` and `dc_accounts_add_closed_account()` #2956 #2972
- use second parameter of `dc_imex` to provide backup passphrase #2980
- added `DC_MSG_WEBXDC`, `dc_send_webxdc_status_update()`,
-  `dc_get_webxdc_status_updates()`, `dc_msg_get_webxdc_blob()`, `dc_msg_get_webxdc_info()`
-  and `DC_EVENT_WEBXDC_STATUS_UPDATE` #2826 #2971 #2975 #2977 #2979 #2993 #2994 #2998 #3001 #3003
- added `dc_msg_get_parent()` #2984
- added `dc_msg_force_plaintext()` API for bots #2847
- allow removing quotes on drafts `dc_msg_set_quote(msg, NULL)` #2950
- removed `mvbox_watch` option; watching is enabled when `mvbox_move` is enabled #2906
- removed `inbox_watch` option #2922
- deprecated `os_name` in `dc_context_new()`, pass `NULL` or an empty string #2956
-
-### Changes
- start making it possible to write to mailing lists #2736
- add `hop_info` to `dc_get_info()` #2751 #2914 #2923
- add information about whether the database is encrypted or not to `dc_get_info()` #3000
- selfstatus now defaults to empty #2951 #2960
- validate detached cryptographic signatures as used eg. by Thunderbird #2865
- do not change the draft's `msg_id` on updates and sending #2887
- add `imap` table to keep track of message UIDs #2909 #2938
- replace `SendMsgToSmtp` jobs which stored outgoing messages in blobdir with `smtp` SQL table #2939 #2996
- sql: enable `auto_vacuum=INCREMENTAL` #2931
- sql: build rusqlite with sqlcipher #2934
- synchronize Seen status across devices #2942
- `dc_preconfigure_keypair` now takes ascii armored keys instead of base64 #2862
- put removed member in Bcc instead of To in the message about removal #2864
- improve group updates #2889
- re-write the blob filename creation loop #2981
- update provider database (11 Jan 2022) #2959
- python: allow timeout for internal configure tracker API #2967
- python: remove API deprecated in Python 3.10 #2907
- refactorings #2932 #2957 #2947
- improve tests #2863 #2866 #2881 #2908 #2918 #2901 #2973
- improve documentation #2880 #2886 #2895
- improve ci #2919 #2926 #2969 #2999
-
-### Fixes
- fix leaving groups #2929
- fix unread count #2861
- make `add_parts()` not early-exit #2879
- recognize MS Exchange read receipts as read receipts #2890
- create parent directory if creating a new file fails #2978
- save "configured" flag later #2974
- improve log #2928
- `dc_receive_imf`: don't fail on invalid address in the To field #2940
-
-
-## 1.70.0
-
-### Fixes
- fix: do not abort Param parsing on unknown keys #2856
- fix: execute `Chat-Group-Member-Removed:` even when arriving disordered #2857
-
-
-## 1.69.0
-
-### Fixes
- fix group-related system messages in multi-device setups #2848
- fix "Google Workspace" (former "G Suite") issues related to bad resolvers #2852
-
-
 ## 1.68.0

 ### Fixes
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,18 +4,10 @@ include(GNUInstallDirs)

 find_program(CARGO cargo)

-if(APPLE)
-       set(DYNAMIC_EXT "dylib")
-elseif(UNIX)
-       set(DYNAMIC_EXT "so")
-else()
-       set(DYNAMIC_EXT "dll")
-endif()
-
 add_custom_command(
 	OUTPUT
 	"target/release/libdeltachat.a"
-	"target/release/libdeltachat.${DYNAMIC_EXT}"
+	"target/release/libdeltachat.so"
 	"target/release/pkgconfig/deltachat.pc"
        COMMAND
        PREFIX=${CMAKE_INSTALL_PREFIX}
@@ -40,11 +32,11 @@ add_custom_target(
 	ALL
 	DEPENDS
 	"target/release/libdeltachat.a"
-	"target/release/libdeltachat.${DYNAMIC_EXT}"
+	"target/release/libdeltachat.so"
 	"target/release/pkgconfig/deltachat.pc"
 )

 install(FILES "deltachat-ffi/deltachat.h" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 install(FILES "target/release/libdeltachat.a" DESTINATION ${CMAKE_INSTALL_LIBDIR})
-install(FILES "target/release/libdeltachat.${DYNAMIC_EXT}" DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(FILES "target/release/libdeltachat.so" DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(FILES "target/release/pkgconfig/deltachat.pc" DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "deltachat"
-version = "1.79.0"
+version = "1.68.0"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
-edition = "2021"
+edition = "2018"
 license = "MPL-2.0"
-rust-version = "1.56"
+resolver = "2"

 [profile.dev]
 debug = 0
@@ -19,14 +19,15 @@ ansi_term = { version = "0.12.1", optional = true }
 anyhow = "1"
 async-imap = { git = "https://github.com/async-email/async-imap" }
 async-native-tls = { version = "0.3" }
-async-smtp = { git = "https://github.com/async-email/async-smtp", branch="master", default-features=false, features = ["smtp-transport", "socks5"] }
-async-std-resolver = "0.21"
-async-std = { version = "1" }
+async-smtp = { git = "https://github.com/async-email/async-smtp", branch="master", features = ["socks5"] }
+async-std-resolver = "0.20"
+async-std = { version = "1", features = ["unstable"] }
 async-tar = { version = "0.4", default-features=false }
 async-trait = "0.1"
 backtrace = "0.3"
 base64 = "0.13"
 bitflags = "1.3"
+byteorder = "1.3"
 chrono = "0.4"
 dirs = { version = "4", optional=true }
 email = { git = "https://github.com/deltachat/rust-email", branch = "master" }
@@ -34,36 +35,37 @@ encoded-words = { git = "https://github.com/async-email/encoded-words", branch="
 escaper = "0.1"
 futures = "0.3"
 hex = "0.4.0"
-image = { version = "0.24.1", default-features=false, features = ["gif", "jpeg", "ico", "png", "pnm", "webp", "bmp"] }
+image = { version = "0.23.5", default-features=false, features = ["gif", "jpeg", "ico", "png", "pnm", "webp", "bmp"] }
 kamadak-exif = "0.5"
 lettre_email = { git = "https://github.com/deltachat/lettre", branch = "master" }
 libc = "0.2"
-log = {version = "0.4.16", optional = true }
+log = {version = "0.4.8", optional = true }
 mailparse = "0.13"
 native-tls = "0.2"
 num_cpus = "1.13"
 num-derive = "0.3"
 num-traits = "0.2"
-once_cell = "1.10.0"
+once_cell = "1.8.0"
 percent-encoding = "2.0"
 pgp = { version = "0.7", default-features = false }
 pretty_env_logger = { version = "0.4", optional = true }
 quick-xml = "0.22"
 r2d2 = "0.8"
-r2d2_sqlite = "0.20"
+r2d2_sqlite = "0.19"
 rand = "0.7"
 regex = "1.5"
-rusqlite = { version = "0.27", features = ["sqlcipher"] }
+rusqlite = "0.26"
 rust-hsluv = "0.1"
-rustyline = { version = "9", optional = true }
+rustyline = { version = "9.0", optional = true }
 sanitize-filename = "0.3"
 serde_json = "1.0"
 serde = { version = "1.0", features = ["derive"] }
-sha-1 = "0.10"
-sha2 = "0.10"
+sha-1 = "0.9"
+sha2 = "0.9"
 smallvec = "1"
-strum = "0.24"
-strum_macros = "0.24"
+stop-token = "0.6"
+strum = "0.23"
+strum_macros = "0.23"
 surf = { version = "2.3", default-features = false, features = ["h1-client"] }
 thiserror = "1"
 toml = "0.5"
@@ -72,14 +74,13 @@ uuid = { version = "0.8", features = ["serde", "v4"] }
 fast-socks5 = "0.4"
 humansize = "1"
 qrcodegen = "1.7.0"
-tagger = "4.3.3"
-textwrap = "0.15.0"
-zip = { version = "0.6.2", default-features = false, features = ["deflate"] }
+tagger = "3.2.1"
+textwrap = "0.14.2"

 [dev-dependencies]
 ansi_term = "0.12.0"
 async-std = { version = "1", features = ["unstable", "attributes"] }
-criterion = { version = "0.3.4", features = ["async_std"] }
+criterion = "0.3"
 futures-lite = "1.12"
 log = "0.4"
 pretty_env_logger = "0.4"
@@ -115,21 +116,9 @@ harness = false
 name = "search_msgs"
 harness = false

-[[bench]]
-name = "receive_emails"
-harness = false
-
-[[bench]]
-name = "get_chat_msgs"
-harness = false
-
-[[bench]]
-name = "get_chatlist"
-harness = false
-
 [features]
 default = ["vendored"]
 internals = []
 repl = ["internals", "rustyline", "log", "pretty_env_logger", "ansi_term", "dirs"]
-vendored = ["async-native-tls/vendored", "async-smtp/native-tls-vendored", "rusqlite/bundled-sqlcipher-vendored-openssl"]
+vendored = ["async-native-tls/vendored", "async-smtp/native-tls-vendored", "rusqlite/bundled"]
 nightly = ["pgp/nightly"]
--- a/README.md
+++ b/README.md
@@ -12,8 +12,6 @@ To download and install the official compiler for the Rust programming language,
 $ curl https://sh.rustup.rs -sSf | sh
 ```

-> On Windows, you may need to also install **Perl** to be able to compile deltachat-core.
-
 ## Using the CLI client

 Compile and run Delta Chat Core command line utility, using `cargo`:
@@ -127,11 +125,11 @@ $ cargo test -- --ignored

 Language bindings are available for:

- **C** \[[📂 source](./deltachat-ffi) | [📚 docs](https://c.delta.chat)\]
- **Node.js** \[[📂 source](https://github.com/deltachat/deltachat-node) | [📦 npm](https://www.npmjs.com/package/deltachat-node) | [📚 docs](https://js.delta.chat)\]
- **Python** \[[📂 source](./python) | [📦 pypi](https://pypi.org/project/deltachat) | [📚 docs](https://py.delta.chat)\]
- **Go** \[[📂 source](https://github.com/deltachat/go-deltachat/)\]
- **Free Pascal** \[[📂 source](https://github.com/deltachat/deltachat-fp/)\]
+- [C](https://c.delta.chat)
+- [Node.js](https://www.npmjs.com/package/deltachat-node)
+- [Python](https://py.delta.chat)
+- [Go](https://github.com/deltachat/go-deltachat/)
+- [Free Pascal](https://github.com/deltachat/deltachat-fp/)
 - **Java** and **Swift** (contained in the Android/iOS repos)

 The following "frontend" projects make use of the Rust-library
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--- a/benches/contacts.rs
+++ b/benches/contacts.rs
@@ -8,7 +8,9 @@ async fn address_book_benchmark(n: u32, read_count: u32) {
    let dir = tempdir().unwrap();
    let dbfile = dir.path().join("db.sqlite");
    let id = 100;
-    let context = Context::new(dbfile.into(), id).await.unwrap();
+    let context = Context::new("FakeOS".into(), dbfile.into(), id)
+        .await
+        .unwrap();

    let book = (0..n)
        .map(|i| format!("Name {}\naddr{}@example.org\n", i, i))
--- a/benches/create_account.rs
+++ b/benches/create_account.rs
@@ -8,7 +8,7 @@ async fn create_accounts(n: u32) {
    let dir = tempdir().unwrap();
    let p: PathBuf = dir.path().join("accounts").into();

-    let mut accounts = Accounts::new(p.clone()).await.unwrap();
+    let accounts = Accounts::new("my_os".into(), p.clone()).await.unwrap();

    for expected_id in 2..n {
        let id = accounts.add_account().await.unwrap();
--- a/benches/get_chat_msgs.rs
+++ b/benches/get_chat_msgs.rs
@@ -1,40 +0,0 @@
-use async_std::path::Path;
-
-use criterion::async_executor::AsyncStdExecutor;
-use criterion::{black_box, criterion_group, criterion_main, Criterion};
-
-use deltachat::chat::{self, ChatId};
-use deltachat::chatlist::Chatlist;
-use deltachat::context::Context;
-
-async fn get_chat_msgs_benchmark(dbfile: &Path, chats: &[ChatId]) {
-    let id = 100;
-    let context = Context::new(dbfile.into(), id).await.unwrap();
-
-    for c in chats.iter().take(10) {
-        black_box(chat::get_chat_msgs(&context, *c, 0, None).await.ok());
-    }
-}
-
-fn criterion_benchmark(c: &mut Criterion) {
-    // To enable this benchmark, set `DELTACHAT_BENCHMARK_DATABASE` to some large database with many
-    // messages, such as your primary account.
-    if let Ok(path) = std::env::var("DELTACHAT_BENCHMARK_DATABASE") {
-        let chats: Vec<_> = async_std::task::block_on(async {
-            let context = Context::new((&path).into(), 100).await.unwrap();
-            let chatlist = Chatlist::try_load(&context, 0, None, None).await.unwrap();
-            let len = chatlist.len();
-            (0..len).map(|i| chatlist.get_chat_id(i).unwrap()).collect()
-        });
-
-        c.bench_function("chat::get_chat_msgs (load messages from 10 chats)", |b| {
-            b.to_async(AsyncStdExecutor)
-                .iter(|| get_chat_msgs_benchmark(black_box(path.as_ref()), black_box(&chats)))
-        });
-    } else {
-        println!("env var not set: DELTACHAT_BENCHMARK_DATABASE");
-    }
-}
-
-criterion_group!(benches, criterion_benchmark);
-criterion_main!(benches);
--- a/benches/get_chatlist.rs
+++ b/benches/get_chatlist.rs
@@ -1,27 +0,0 @@
-use criterion::async_executor::AsyncStdExecutor;
-use criterion::{black_box, criterion_group, criterion_main, Criterion};
-
-use deltachat::chatlist::Chatlist;
-use deltachat::context::Context;
-
-async fn get_chat_list_benchmark(context: &Context) {
-    Chatlist::try_load(context, 0, None, None).await.unwrap();
-}
-
-fn criterion_benchmark(c: &mut Criterion) {
-    // To enable this benchmark, set `DELTACHAT_BENCHMARK_DATABASE` to some large database with many
-    // messages, such as your primary account.
-    if let Ok(path) = std::env::var("DELTACHAT_BENCHMARK_DATABASE") {
-        let context =
-            async_std::task::block_on(async { Context::new(path.into(), 100).await.unwrap() });
-        c.bench_function("chatlist:try_load (Get Chatlist)", |b| {
-            b.to_async(AsyncStdExecutor)
-                .iter(|| get_chat_list_benchmark(black_box(&context)))
-        });
-    } else {
-        println!("env var not set: DELTACHAT_BENCHMARK_DATABASE");
-    }
-}
-
-criterion_group!(benches, criterion_benchmark);
-criterion_main!(benches);
--- a/benches/receive_emails.rs
+++ b/benches/receive_emails.rs
@@ -1,84 +0,0 @@
-use async_std::{path::PathBuf, task::block_on};
-use criterion::{
-    async_executor::AsyncStdExecutor, black_box, criterion_group, criterion_main, BatchSize,
-    Criterion,
-};
-use deltachat::{
-    config::Config,
-    context::Context,
-    dc_receive_imf::dc_receive_imf,
-    imex::{imex, ImexMode},
-};
-use tempfile::tempdir;
-
-async fn recv_all_emails(context: Context) -> Context {
-    for i in 0..100 {
-        let imf_raw = format!(
-            "Subject: Benchmark
-Message-ID: Mr.OssSYnOFkhR.{i}@testrun.org
-Date: Sat, 07 Dec 2019 19:00:27 +0000
-To: alice@example.com
-From: sender@testrun.org
-Chat-Version: 1.0
-Chat-Disposition-Notification-To: sender@testrun.org
-Chat-User-Avatar: 0
-In-Reply-To: Mr.OssSYnOFkhR.{i_dec}@testrun.org
-MIME-Version: 1.0
-
-Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
-
-Hello {i}",
-            i = i,
-            i_dec = i - 1,
-        );
-        dc_receive_imf(&context, black_box(imf_raw.as_bytes()), false)
-            .await
-            .unwrap();
-    }
-    context
-}
-
-async fn create_context() -> Context {
-    let dir = tempdir().unwrap();
-    let dbfile = dir.path().join("db.sqlite");
-    let id = 100;
-    let context = Context::new(dbfile.into(), id).await.unwrap();
-
-    let backup: PathBuf = std::env::current_dir()
-        .unwrap()
-        .join("delta-chat-backup.tar")
-        .into();
-    if backup.exists().await {
-        println!("Importing backup");
-        imex(&context, ImexMode::ImportBackup, &backup, None)
-            .await
-            .unwrap();
-    }
-
-    let addr = "alice@example.com";
-    context.set_config(Config::Addr, Some(addr)).await.unwrap();
-    context
-        .set_config(Config::ConfiguredAddr, Some(addr))
-        .await
-        .unwrap();
-    context
-        .set_config(Config::Configured, Some("1"))
-        .await
-        .unwrap();
-    context
-}
-
-fn criterion_benchmark(c: &mut Criterion) {
-    let mut group = c.benchmark_group("Receive messages");
-    group.bench_function("Receive 100 simple text msgs", |b| {
-        b.to_async(AsyncStdExecutor).iter_batched(
-            || block_on(create_context()),
-            |context| recv_all_emails(black_box(context)),
-            BatchSize::LargeInput,
-        );
-    });
-    group.finish();
-}
-
-criterion_group!(benches, criterion_benchmark);
-criterion_main!(benches);
--- a/benches/search_msgs.rs
+++ b/benches/search_msgs.rs
@@ -6,7 +6,9 @@ use std::path::Path;
 async fn search_benchmark(path: impl AsRef<Path>) {
    let dbfile = path.as_ref();
    let id = 100;
-    let context = Context::new(dbfile.into(), id).await.unwrap();
+    let context = Context::new("FakeOS".into(), dbfile.into(), id)
+        .await
+        .unwrap();

    for _ in 0..10u32 {
        context.search_msgs(None, "hello").await.unwrap();
@@ -20,8 +22,6 @@ fn criterion_benchmark(c: &mut Criterion) {
        c.bench_function("search hello", |b| {
            b.iter(|| block_on(async { search_benchmark(black_box(&path)).await }))
        });
-    } else {
-        println!("env var not set: DELTACHAT_BENCHMARK_DATABASE");
    }
 }

--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.79.0"
+version = "1.68.0"
 description = "Deltachat FFI"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
--- a/deltachat-ffi/README.md
+++ b/deltachat-ffi/README.md
@@ -1,9 +1,5 @@
 # Delta Chat C Interface

-## Installation
-
-see `Installing libdeltachat system wide` in [../README.md](../README.md)
-
 ## Documentation

 To generate the C Interface documentation,
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
--- a/deltachat-ffi/src/lib.rs
+++ b/deltachat-ffi/src/lib.rs
@@ -27,17 +27,15 @@ use async_std::sync::RwLock;
 use async_std::task::{block_on, spawn};
 use deltachat::qr_code_generator::get_securejoin_qr_svg;
 use num_traits::{FromPrimitive, ToPrimitive};
-use rand::Rng;

 use deltachat::chat::{ChatId, ChatVisibility, MuteDuration, ProtectionStatus};
 use deltachat::constants::DC_MSG_ID_LAST_SPECIAL;
-use deltachat::contact::{Contact, ContactId, Origin};
+use deltachat::contact::{Contact, Origin};
 use deltachat::context::Context;
 use deltachat::ephemeral::Timer as EphemeralTimer;
 use deltachat::key::DcKey;
 use deltachat::message::MsgId;
 use deltachat::stock_str::StockMessage;
-use deltachat::webxdc::StatusUpdateSerial;
 use deltachat::*;
 use deltachat::{accounts::Accounts, log::LogExt};

@@ -65,7 +63,7 @@ pub type dc_context_t = Context;

 #[no_mangle]
 pub unsafe extern "C" fn dc_context_new(
-    _os_name: *const libc::c_char,
+    os_name: *const libc::c_char,
    dbfile: *const libc::c_char,
    blobdir: *const libc::c_char,
 ) -> *mut dc_context_t {
@@ -76,10 +74,21 @@ pub unsafe extern "C" fn dc_context_new(
        return ptr::null_mut();
    }

+    let os_name = if os_name.is_null() {
+        String::from("DcFFI")
+    } else {
+        to_string_lossy(os_name)
+    };
+
    let ctx = if blobdir.is_null() || *blobdir == 0 {
+        use rand::Rng;
        // generate random ID as this functionality is not yet available on the C-api.
        let id = rand::thread_rng().gen();
-        block_on(Context::new(as_path(dbfile).to_path_buf().into(), id))
+        block_on(Context::new(
+            os_name,
+            as_path(dbfile).to_path_buf().into(),
+            id,
+        ))
    } else {
        eprintln!("blobdir can not be defined explicitly anymore");
        return ptr::null_mut();
@@ -87,63 +96,12 @@ pub unsafe extern "C" fn dc_context_new(
    match ctx {
        Ok(ctx) => Box::into_raw(Box::new(ctx)),
        Err(err) => {
-            eprintln!("failed to create context: {:#}", err);
+            eprintln!("failed to create context: {}", err);
            ptr::null_mut()
        }
    }
 }

-#[no_mangle]
-pub unsafe extern "C" fn dc_context_new_closed(dbfile: *const libc::c_char) -> *mut dc_context_t {
-    setup_panic!();
-
-    if dbfile.is_null() {
-        eprintln!("ignoring careless call to dc_context_new_closed()");
-        return ptr::null_mut();
-    }
-
-    let id = rand::thread_rng().gen();
-    match block_on(Context::new_closed(
-        as_path(dbfile).to_path_buf().into(),
-        id,
-    )) {
-        Ok(context) => Box::into_raw(Box::new(context)),
-        Err(err) => {
-            eprintln!("failed to create context: {:#}", err);
-            ptr::null_mut()
-        }
-    }
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_context_open(
-    context: *mut dc_context_t,
-    passphrase: *const libc::c_char,
-) -> libc::c_int {
-    if context.is_null() {
-        eprintln!("ignoring careless call to dc_context_open()");
-        return 0;
-    }
-
-    let ctx = &*context;
-    let passphrase = to_string_lossy(passphrase);
-    block_on(ctx.open(passphrase))
-        .log_err(ctx, "dc_context_open() failed")
-        .map(|b| b as libc::c_int)
-        .unwrap_or(0)
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_context_is_open(context: *mut dc_context_t) -> libc::c_int {
-    if context.is_null() {
-        eprintln!("ignoring careless call to dc_context_is_open()");
-        return 0;
-    }
-
-    let ctx = &*context;
-    block_on(ctx.is_open()) as libc::c_int
-}
-
 /// Release the context structure.
 ///
 /// This function releases the memory of the `dc_context_t` structure.
@@ -235,7 +193,7 @@ pub unsafe extern "C" fn dc_get_config(
                    .unwrap_or_default()
                    .strdup(),
                Err(_) => {
-                    warn!(ctx, "dc_get_config(): invalid key '{}'", &key);
+                    warn!(ctx, "dc_get_config(): invalid key");
                    "".strdup()
                }
            }
@@ -493,17 +451,14 @@ pub unsafe extern "C" fn dc_event_get_data1_int(event: *mut dc_event_t) -> libc:
        | EventType::ChatEphemeralTimerModified { chat_id, .. } => chat_id.to_u32() as libc::c_int,
        EventType::ContactsChanged(id) | EventType::LocationChanged(id) => {
            let id = id.unwrap_or_default();
-            id.to_u32() as libc::c_int
+            id as libc::c_int
        }
        EventType::ConfigureProgress { progress, .. } | EventType::ImexProgress(progress) => {
            *progress as libc::c_int
        }
        EventType::ImexFileWritten(_) => 0,
        EventType::SecurejoinInviterProgress { contact_id, .. }
-        | EventType::SecurejoinJoinerProgress { contact_id, .. } => {
-            contact_id.to_u32() as libc::c_int
-        }
-        EventType::WebxdcStatusUpdate { msg_id, .. } => msg_id.to_u32() as libc::c_int,
+        | EventType::SecurejoinJoinerProgress { contact_id, .. } => *contact_id as libc::c_int,
    }
 }

@@ -535,8 +490,8 @@ pub unsafe extern "C" fn dc_event_get_data2_int(event: *mut dc_event_t) -> libc:
        | EventType::ImexFileWritten(_)
        | EventType::MsgsNoticed(_)
        | EventType::ConnectivityChanged
-        | EventType::SelfavatarChanged => 0,
-        EventType::ChatModified(_) => 0,
+        | EventType::SelfavatarChanged
+        | EventType::ChatModified(_) => 0,
        EventType::MsgsChanged { msg_id, .. }
        | EventType::IncomingMsg { msg_id, .. }
        | EventType::MsgDelivered { msg_id, .. }
@@ -545,10 +500,6 @@ pub unsafe extern "C" fn dc_event_get_data2_int(event: *mut dc_event_t) -> libc:
        EventType::SecurejoinInviterProgress { progress, .. }
        | EventType::SecurejoinJoinerProgress { progress, .. } => *progress as libc::c_int,
        EventType::ChatEphemeralTimerModified { timer, .. } => timer.to_u32() as libc::c_int,
-        EventType::WebxdcStatusUpdate {
-            status_update_serial,
-            ..
-        } => status_update_serial.to_u32() as libc::c_int,
    }
 }

@@ -590,7 +541,6 @@ pub unsafe extern "C" fn dc_event_get_data2_str(event: *mut dc_event_t) -> *mut
        | EventType::SecurejoinJoinerProgress { .. }
        | EventType::ConnectivityChanged
        | EventType::SelfavatarChanged
-        | EventType::WebxdcStatusUpdate { .. }
        | EventType::ChatEphemeralTimerModified { .. } => ptr::null_mut(),
        EventType::ConfigureProgress { comment, .. } => {
            if let Some(comment) = comment {
@@ -692,8 +642,8 @@ pub unsafe extern "C" fn dc_preconfigure_keypair(
    let ctx = &*context;
    block_on(async move {
        let addr = dc_tools::EmailAddress::new(&to_string_lossy(addr))?;
-        let public = key::SignedPublicKey::from_asc(&to_string_lossy(public_data))?.0;
-        let secret = key::SignedSecretKey::from_asc(&to_string_lossy(secret_data))?.0;
+        let public = key::SignedPublicKey::from_base64(&to_string_lossy(public_data))?;
+        let secret = key::SignedSecretKey::from_base64(&to_string_lossy(secret_data))?;
        let keypair = key::KeyPair {
            addr,
            public,
@@ -720,11 +670,7 @@ pub unsafe extern "C" fn dc_get_chatlist(
    let ctx = &*context;
    let qs = to_opt_string_lossy(query_str);

-    let qi = if query_id == 0 {
-        None
-    } else {
-        Some(ContactId::new(query_id))
-    };
+    let qi = if query_id == 0 { None } else { Some(query_id) };

    block_on(async move {
        match chatlist::Chatlist::try_load(ctx, flags as usize, qs.as_deref(), qi)
@@ -752,7 +698,7 @@ pub unsafe extern "C" fn dc_create_chat_by_contact_id(
    let ctx = &*context;

    block_on(async move {
-        ChatId::create_for_contact(ctx, ContactId::new(contact_id))
+        ChatId::create_for_contact(ctx, contact_id)
            .await
            .log_err(ctx, "Failed to create chat from contact_id")
            .map(|id| id.to_u32())
@@ -772,7 +718,7 @@ pub unsafe extern "C" fn dc_get_chat_id_by_contact_id(
    let ctx = &*context;

    block_on(async move {
-        ChatId::lookup_by_contact(ctx, ContactId::new(contact_id))
+        ChatId::lookup_by_contact(ctx, contact_id)
            .await
            .log_err(ctx, "Failed to get chat for contact_id")
            .unwrap_or_default() // unwraps the Result
@@ -884,48 +830,6 @@ pub unsafe extern "C" fn dc_send_videochat_invitation(
    })
 }

-#[no_mangle]
-pub unsafe extern "C" fn dc_send_webxdc_status_update(
-    context: *mut dc_context_t,
-    msg_id: u32,
-    json: *const libc::c_char,
-    descr: *const libc::c_char,
-) -> libc::c_int {
-    if context.is_null() {
-        eprintln!("ignoring careless call to dc_send_webxdc_status_update()");
-        return 0;
-    }
-    let ctx = &*context;
-
-    block_on(ctx.send_webxdc_status_update(
-        MsgId::new(msg_id),
-        &to_string_lossy(json),
-        &to_string_lossy(descr),
-    ))
-    .log_err(ctx, "Failed to send webxdc update")
-    .is_ok() as libc::c_int
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_get_webxdc_status_updates(
-    context: *mut dc_context_t,
-    msg_id: u32,
-    last_known_serial: u32,
-) -> *mut libc::c_char {
-    if context.is_null() {
-        eprintln!("ignoring careless call to dc_get_webxdc_status_updates()");
-        return "".strdup();
-    }
-    let ctx = &*context;
-
-    block_on(ctx.get_webxdc_status_updates(
-        MsgId::new(msg_id),
-        StatusUpdateSerial::new(last_known_serial),
-    ))
-    .unwrap_or_else(|_| "".to_string())
-    .strdup()
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn dc_set_draft(
    context: *mut dc_context_t,
@@ -1349,10 +1253,7 @@ pub unsafe extern "C" fn dc_get_chat_contacts(
        let arr = dc_array_t::from(
            chat::get_chat_contacts(ctx, ChatId::new(chat_id))
                .await
-                .unwrap_or_log_default(ctx, "Failed get_chat_contacts")
-                .iter()
-                .map(|id| id.to_u32())
-                .collect::<Vec<u32>>(),
+                .unwrap_or_log_default(ctx, "Failed get_chat_contacts"),
        );
        Box::into_raw(Box::new(arr))
    })
@@ -1462,7 +1363,7 @@ pub unsafe extern "C" fn dc_is_contact_in_chat(
    block_on(chat::is_contact_in_chat(
        ctx,
        ChatId::new(chat_id),
-        ContactId::new(contact_id),
+        contact_id,
    ))
    .log_err(ctx, "is_contact_in_chat failed")
    .unwrap_or_default() as libc::c_int
@@ -1483,7 +1384,7 @@ pub unsafe extern "C" fn dc_add_contact_to_chat(
    block_on(chat::add_contact_to_chat(
        ctx,
        ChatId::new(chat_id),
-        ContactId::new(contact_id),
+        contact_id,
    ))
    .log_err(ctx, "Failed to add contact")
    .is_ok() as libc::c_int
@@ -1504,7 +1405,7 @@ pub unsafe extern "C" fn dc_remove_contact_from_chat(
    block_on(chat::remove_contact_from_chat(
        ctx,
        ChatId::new(chat_id),
-        ContactId::new(contact_id),
+        contact_id,
    ))
    .log_err(ctx, "Failed to remove contact")
    .is_ok() as libc::c_int
@@ -1751,27 +1652,6 @@ pub unsafe extern "C" fn dc_forward_msgs(
    })
 }

-#[no_mangle]
-pub unsafe extern "C" fn dc_resend_msgs(
-    context: *mut dc_context_t,
-    msg_ids: *const u32,
-    msg_cnt: libc::c_int,
-) -> libc::c_int {
-    if context.is_null() || msg_ids.is_null() || msg_cnt <= 0 {
-        eprintln!("ignoring careless call to dc_resend_msgs()");
-        return 0;
-    }
-    let ctx = &*context;
-    let msg_ids = convert_and_prune_message_ids(msg_ids, msg_cnt);
-
-    if let Err(err) = block_on(chat::resend_msgs(ctx, &msg_ids)) {
-        error!(ctx, "Resending failed: {}", err);
-        0
-    } else {
-        1
-    }
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn dc_markseen_msgs(
    context: *mut dc_context_t,
@@ -1857,11 +1737,10 @@ pub unsafe extern "C" fn dc_lookup_contact_id_by_addr(
    let ctx = &*context;

    block_on(async move {
-        Contact::lookup_id_by_addr(ctx, &to_string_lossy(addr), Origin::IncomingReplyTo)
+        Contact::lookup_id_by_addr(ctx, to_string_lossy(addr), Origin::IncomingReplyTo)
            .await
            .unwrap_or_log_default(ctx, "failed to lookup id")
-            .map(|id| id.to_u32())
-            .unwrap_or_default()
+            .unwrap_or(0)
    })
 }

@@ -1881,7 +1760,6 @@ pub unsafe extern "C" fn dc_create_contact(
    block_on(async move {
        Contact::create(ctx, &name, &to_string_lossy(addr))
            .await
-            .map(|id| id.to_u32())
            .unwrap_or(0)
    })
 }
@@ -1920,9 +1798,7 @@ pub unsafe extern "C" fn dc_get_contacts(

    block_on(async move {
        match Contact::get_all(ctx, flags, query).await {
-            Ok(contacts) => Box::into_raw(Box::new(dc_array_t::from(
-                contacts.iter().map(|id| id.to_u32()).collect::<Vec<u32>>(),
-            ))),
+            Ok(contacts) => Box::into_raw(Box::new(dc_array_t::from(contacts))),
            Err(_) => ptr::null_mut(),
        }
    })
@@ -1959,10 +1835,7 @@ pub unsafe extern "C" fn dc_get_blocked_contacts(
            Contact::get_all_blocked(ctx)
                .await
                .log_err(ctx, "Can't get blocked contacts")
-                .unwrap_or_default()
-                .iter()
-                .map(|id| id.to_u32())
-                .collect::<Vec<u32>>(),
+                .unwrap_or_default(),
        )))
    })
 }
@@ -1973,8 +1846,7 @@ pub unsafe extern "C" fn dc_block_contact(
    contact_id: u32,
    block: libc::c_int,
 ) {
-    let contact_id = ContactId::new(contact_id);
-    if context.is_null() || contact_id.is_special() {
+    if context.is_null() || contact_id <= constants::DC_CONTACT_ID_LAST_SPECIAL as u32 {
        eprintln!("ignoring careless call to dc_block_contact()");
        return;
    }
@@ -2004,7 +1876,7 @@ pub unsafe extern "C" fn dc_get_contact_encrinfo(
    let ctx = &*context;

    block_on(async move {
-        Contact::get_encrinfo(ctx, ContactId::new(contact_id))
+        Contact::get_encrinfo(ctx, contact_id)
            .await
            .map(|s| s.strdup())
            .unwrap_or_else(|e| {
@@ -2019,8 +1891,7 @@ pub unsafe extern "C" fn dc_delete_contact(
    context: *mut dc_context_t,
    contact_id: u32,
 ) -> libc::c_int {
-    let contact_id = ContactId::new(contact_id);
-    if context.is_null() || contact_id.is_special() {
+    if context.is_null() || contact_id <= constants::DC_CONTACT_ID_LAST_SPECIAL as u32 {
        eprintln!("ignoring careless call to dc_delete_contact()");
        return 0;
    }
@@ -2046,7 +1917,7 @@ pub unsafe extern "C" fn dc_get_contact(
    let ctx = &*context;

    block_on(async move {
-        Contact::get_by_id(ctx, ContactId::new(contact_id))
+        Contact::get_by_id(ctx, contact_id)
            .await
            .map(|contact| Box::into_raw(Box::new(ContactWrapper { context, contact })))
            .unwrap_or_else(|_| ptr::null_mut())
@@ -2058,7 +1929,7 @@ pub unsafe extern "C" fn dc_imex(
    context: *mut dc_context_t,
    what_raw: libc::c_int,
    param1: *const libc::c_char,
-    param2: *const libc::c_char,
+    _param2: *const libc::c_char,
 ) {
    if context.is_null() {
        eprintln!("ignoring careless call to dc_imex()");
@@ -2071,13 +1942,12 @@ pub unsafe extern "C" fn dc_imex(
            return;
        }
    };
-    let passphrase = to_opt_string_lossy(param2);

    let ctx = &*context;

    if let Some(param1) = to_opt_string_lossy(param1) {
        spawn(async move {
-            imex::imex(ctx, what, param1.as_ref(), passphrase)
+            imex::imex(ctx, what, param1.as_ref())
                .await
                .log_err(ctx, "IMEX failed")
        });
@@ -2469,7 +2339,7 @@ pub unsafe extern "C" fn dc_array_get_contact_id(
        return 0;
    }

-    (*array).get_location(index).contact_id.to_u32()
+    (*array).get_location(index).contact_id
 }
 #[no_mangle]
 pub unsafe extern "C" fn dc_array_get_msg_id(
@@ -2583,14 +2453,7 @@ pub unsafe extern "C" fn dc_chatlist_get_chat_id(
        return 0;
    }
    let ffi_list = &*chatlist;
-    let ctx = &*ffi_list.context;
-    match ffi_list.list.get_chat_id(index as usize) {
-        Ok(chat_id) => chat_id.to_u32(),
-        Err(err) => {
-            warn!(ctx, "get_chat_id failed: {}", err);
-            0
-        }
-    }
+    ffi_list.list.get_chat_id(index as usize).to_u32()
 }

 #[no_mangle]
@@ -2985,7 +2848,7 @@ pub unsafe extern "C" fn dc_msg_get_from_id(msg: *mut dc_msg_t) -> u32 {
        return 0;
    }
    let ffi_msg = &*msg;
-    ffi_msg.message.get_from_id().to_u32()
+    ffi_msg.message.get_from_id()
 }

 #[no_mangle]
@@ -3107,61 +2970,6 @@ pub unsafe extern "C" fn dc_msg_get_filename(msg: *mut dc_msg_t) -> *mut libc::c
    ffi_msg.message.get_filename().unwrap_or_default().strdup()
 }

-#[no_mangle]
-pub unsafe extern "C" fn dc_msg_get_webxdc_blob(
-    msg: *mut dc_msg_t,
-    filename: *const libc::c_char,
-    ret_bytes: *mut libc::size_t,
-) -> *mut libc::c_char {
-    if msg.is_null() || filename.is_null() || ret_bytes.is_null() {
-        eprintln!("ignoring careless call to dc_msg_get_webxdc_blob()");
-        return ptr::null_mut();
-    }
-    let ffi_msg = &*msg;
-    let ctx = &*ffi_msg.context;
-    let blob = block_on(async move {
-        ffi_msg
-            .message
-            .get_webxdc_blob(ctx, &to_string_lossy(filename))
-            .await
-    });
-    match blob {
-        Ok(blob) => {
-            *ret_bytes = blob.len();
-            let ptr = libc::malloc(*ret_bytes);
-            libc::memcpy(ptr, blob.as_ptr() as *mut libc::c_void, *ret_bytes);
-            ptr as *mut libc::c_char
-        }
-        Err(err) => {
-            eprintln!("failed read blob from archive: {}", err);
-            ptr::null_mut()
-        }
-    }
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_msg_get_webxdc_info(msg: *mut dc_msg_t) -> *mut libc::c_char {
-    if msg.is_null() {
-        eprintln!("ignoring careless call to dc_msg_get_webxdc_info()");
-        return "".strdup();
-    }
-    let ffi_msg = &*msg;
-    let ctx = &*ffi_msg.context;
-
-    block_on(async move {
-        let info = match ffi_msg.message.get_webxdc_info(ctx).await {
-            Ok(info) => info,
-            Err(err) => {
-                error!(ctx, "dc_msg_get_webxdc_info() failed to get info: {}", err);
-                return "".strdup();
-            }
-        };
-        serde_json::to_string(&info)
-            .unwrap_or_log_default(ctx, "dc_msg_get_webxdc_info() failed to serialise to json")
-            .strdup()
-    })
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn dc_msg_get_filemime(msg: *mut dc_msg_t) -> *mut libc::c_char {
    if msg.is_null() {
@@ -3574,21 +3382,17 @@ pub unsafe extern "C" fn dc_msg_set_quote(msg: *mut dc_msg_t, quote: *const dc_m
        return;
    }
    let ffi_msg = &mut *msg;
-    let quote_msg = if quote.is_null() {
-        None
-    } else {
-        let ffi_quote = &*quote;
-        if ffi_msg.context != ffi_quote.context {
-            eprintln!("ignoring attempt to quote message from a different context");
-            return;
-        }
-        Some(&ffi_quote.message)
-    };
+    let ffi_quote = &*quote;
+
+    if ffi_msg.context != ffi_quote.context {
+        eprintln!("ignoring attempt to quote message from a different context");
+        return;
+    }

    block_on(async move {
        ffi_msg
            .message
-            .set_quote(&*ffi_msg.context, quote_msg)
+            .set_quote(&*ffi_msg.context, &ffi_quote.message)
            .await
            .log_err(&*ffi_msg.context, "failed to set quote")
            .ok();
@@ -3631,39 +3435,6 @@ pub unsafe extern "C" fn dc_msg_get_quoted_msg(msg: *const dc_msg_t) -> *mut dc_
    }
 }

-#[no_mangle]
-pub unsafe extern "C" fn dc_msg_get_parent(msg: *const dc_msg_t) -> *mut dc_msg_t {
-    if msg.is_null() {
-        eprintln!("ignoring careless call to dc_msg_get_parent()");
-        return ptr::null_mut();
-    }
-    let ffi_msg: &MessageWrapper = &*msg;
-    let context = &*ffi_msg.context;
-    let res = block_on(async move {
-        ffi_msg
-            .message
-            .parent(context)
-            .await
-            .log_err(context, "failed to get parent message")
-            .unwrap_or(None)
-    });
-
-    match res {
-        Some(message) => Box::into_raw(Box::new(MessageWrapper { context, message })),
-        None => ptr::null_mut(),
-    }
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_msg_force_plaintext(msg: *mut dc_msg_t) {
-    if msg.is_null() {
-        eprintln!("ignoring careless call to dc_msg_force_plaintext()");
-        return;
-    }
-    let ffi_msg = &mut *msg;
-    ffi_msg.message.force_plaintext();
-}
-
 // dc_contact_t

 /// FFI struct for [dc_contact_t]
@@ -3696,7 +3467,7 @@ pub unsafe extern "C" fn dc_contact_get_id(contact: *mut dc_contact_t) -> u32 {
        return 0;
    }
    let ffi_contact = &*contact;
-    ffi_contact.contact.get_id().to_u32()
+    ffi_contact.contact.get_id()
 }

 #[no_mangle]
@@ -3973,25 +3744,6 @@ pub unsafe extern "C" fn dc_provider_new_from_email(
    }
    let addr = to_string_lossy(addr);

-    let ctx = &*context;
-
-    match block_on(provider::get_provider_info(ctx, addr.as_str(), true)) {
-        Some(provider) => provider,
-        None => ptr::null_mut(),
-    }
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_provider_new_from_email_with_dns(
-    context: *const dc_context_t,
-    addr: *const libc::c_char,
-) -> *const dc_provider_t {
-    if context.is_null() || addr.is_null() {
-        eprintln!("ignoring careless call to dc_provider_new_from_email_with_dns()");
-        return ptr::null();
-    }
-    let addr = to_string_lossy(addr);
-
    let ctx = &*context;
    let socks5_enabled = block_on(async move {
        ctx.get_config_bool(config::Config::Socks5Enabled)
@@ -4001,11 +3753,7 @@ pub unsafe extern "C" fn dc_provider_new_from_email_with_dns(

    match socks5_enabled {
        Ok(socks5_enabled) => {
-            match block_on(provider::get_provider_info(
-                ctx,
-                addr.as_str(),
-                socks5_enabled,
-            )) {
+            match block_on(provider::get_provider_info(addr.as_str(), socks5_enabled)) {
                Some(provider) => provider,
                None => ptr::null_mut(),
            }
@@ -4087,7 +3835,7 @@ pub type dc_accounts_t = AccountsWrapper;

 #[no_mangle]
 pub unsafe extern "C" fn dc_accounts_new(
-    _os_name: *const libc::c_char,
+    os_name: *const libc::c_char,
    dbfile: *const libc::c_char,
 ) -> *mut dc_accounts_t {
    setup_panic!();
@@ -4097,7 +3845,13 @@ pub unsafe extern "C" fn dc_accounts_new(
        return ptr::null_mut();
    }

-    let accs = block_on(Accounts::new(as_path(dbfile).to_path_buf().into()));
+    let os_name = if os_name.is_null() {
+        String::from("DcFFI")
+    } else {
+        to_string_lossy(os_name)
+    };
+
+    let accs = block_on(Accounts::new(os_name, as_path(dbfile).to_path_buf().into()));

    match accs {
        Ok(accs) => Box::into_raw(Box::new(AccountsWrapper::new(accs))),
@@ -4202,30 +3956,6 @@ pub unsafe extern "C" fn dc_accounts_add_account(accounts: *mut dc_accounts_t) -
    })
 }

-#[no_mangle]
-pub unsafe extern "C" fn dc_accounts_add_closed_account(accounts: *mut dc_accounts_t) -> u32 {
-    if accounts.is_null() {
-        eprintln!("ignoring careless call to dc_accounts_add_closed_account()");
-        return 0;
-    }
-
-    let accounts = &mut *accounts;
-
-    block_on(async move {
-        let mut accounts = accounts.write().await;
-        match accounts.add_closed_account().await {
-            Ok(id) => id,
-            Err(err) => {
-                accounts.emit_event(EventType::Error(format!(
-                    "Failed to add account: {:#}",
-                    err
-                )));
-                0
-            }
-        }
-    })
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn dc_accounts_remove_account(
    accounts: *mut dc_accounts_t,
--- a/deltachat-ffi/src/lot.rs
+++ b/deltachat-ffi/src/lot.rs
@@ -111,19 +111,19 @@ impl Lot {
        match self {
            Self::Summary(_) => Default::default(),
            Self::Qr(qr) => match qr {
-                Qr::AskVerifyContact { contact_id, .. } => contact_id.to_u32(),
+                Qr::AskVerifyContact { contact_id, .. } => *contact_id,
                Qr::AskVerifyGroup { .. } => Default::default(),
-                Qr::FprOk { contact_id } => contact_id.to_u32(),
-                Qr::FprMismatch { contact_id } => contact_id.unwrap_or_default().to_u32(),
+                Qr::FprOk { contact_id } => *contact_id,
+                Qr::FprMismatch { contact_id } => contact_id.unwrap_or_default(),
                Qr::FprWithoutAddr { .. } => Default::default(),
                Qr::Account { .. } => Default::default(),
                Qr::WebrtcInstance { .. } => Default::default(),
-                Qr::Addr { contact_id } => contact_id.to_u32(),
+                Qr::Addr { contact_id } => *contact_id,
                Qr::Url { .. } => Default::default(),
                Qr::Text { .. } => Default::default(),
-                Qr::WithdrawVerifyContact { contact_id, .. } => contact_id.to_u32(),
+                Qr::WithdrawVerifyContact { contact_id, .. } => *contact_id,
                Qr::WithdrawVerifyGroup { .. } => Default::default(),
-                Qr::ReviveVerifyContact { contact_id, .. } => contact_id.to_u32(),
+                Qr::ReviveVerifyContact { contact_id, .. } => *contact_id,
                Qr::ReviveVerifyGroup { .. } => Default::default(),
            },
            Self::Error(_) => Default::default(),
--- a/draft/webxdc-dev-reference.md
+++ b/draft/webxdc-dev-reference.md
@@ -1,185 +0,0 @@
-# Webxdc Developer Reference
-
-## Webxdc File Format
-
- a **Webxdc app** is a **ZIP-file** with the extension `.xdc`
- the ZIP-file must use the default compression methods as of RFC 1950,
-  this is "Deflate" or "Store"
- the ZIP-file must contain at least the file `index.html`
- if the Webxdc app is started, `index.html` is opened in a restricted webview
-  that allow accessing resources only from the ZIP-file
-
-
-## Webxdc API
-
-There are some additional APIs available once `webxdc.js` is included
-(the file will be provided by the concrete implementations,
-no need to add `webxdc.js` to your ZIP-file):
-
-```html
-<script src="webxdc.js"></script>
-```
-
-### sendUpdate()
-
-```js
-window.webxdc.sendUpdate(update, descr);
-```
-
-Webxdc apps are usually shared in a chat and run independently on each peer.
-To get a shared state, the peers use `sendUpdate()` to send updates to each other.
-
- `update`: an object with the following properties:  
-    - `update.payload`: any javascript primitive, array or object.
-    - `update.info`: optional, short, informational message that will be added to the chat,
-       eg. "Alice voted" or "Bob scored 123 in MyGame";
-       usually only one line of text is shown,
-       use this option sparingly to not spam the chat.
-    - `update.summary`: optional, short text, shown beside app icon;
-       it is recommended to use some aggregated value,  eg. "8 votes", "Highscore: 123"
-
- `descr`: short, human-readable description what this update is about.
-  this is shown eg. as a fallback text in an email program.
-
-All peers, including the sending one,
-will receive the update by the callback given to `setUpdateListener()`.
-
-There are situations where the user cannot send messages to a chat,
-eg. if the webxdc instance comes as a contact request or if the user has left a group.
-In these cases, you can still call `sendUpdate()`,
-however, the update won't be sent to other peers
-and you won't get the update by `setUpdateListener()`.
-
-
-### setUpdateListener()
-
-```js
-let promise = window.webxdc.setUpdateListener((update) => {}, serial);
-```
-
-With `setUpdateListener()` you define a callback that receives the updates
-sent by `sendUpdate()`. The callback is called for updates sent by you or other peers.
-The `serial` specifies the last serial that you know about (defaults to 0). 
-The returned promise resolves when the listener has processed all the update messages known at the time when  `setUpdateListener` was called. 
-
-Each `update` which is passed to the callback comes with the following properties: 
-
- `update.payload`: equals the payload given to `sendUpdate()`
-
- `update.serial`: the serial number of this update.
-  Serials are larger `0` and newer serials have higher numbers.
-  There may be gaps in the serials
-  and it is not guaranteed that the next serial is exactly incremented by one.
-
- `update.max_serial`: the maximum serial currently known.
-  If `max_serial` equals `serial` this update is the last update (until new network messages arrive).
-
- `update.info`: optional, short, informational message (see `send_update`) 
-
- `update.summary`: optional, short text, shown beside app icon (see `send_update`)
-
-
-### selfAddr
-
-```js
-window.webxdc.selfAddr
-```
-
-Property with the peer's own address.
-This is esp. useful if you want to differ between different peers -
-just send the address along with the payload,
-and, if needed, compare the payload addresses against selfAddr() later on.
-
-
-### selfName
-
-```js
-window.webxdc.selfName
-```
-
-Property with the peer's own name.
-This is name chosen by the user in their settings,
-if there is nothing set, that defaults to the peer's address.
-
-
-## manifest.toml
-
-If the ZIP-file contains a `manifest.toml` in its root directory,
-some basic information are read and used from there.
-
-the `manifest.toml` has the following format
-
-```toml
-name = "My App Name"
-```
-
- **name** - The name of the app.
-  If no name is set or if there is no manifest, the filename is used as the app name.
-
-
-## App Icon
-
-If the ZIP-root contains an `icon.png` or `icon.jpg`,
-these files are used as the icon for the app.
-The icon should be a square at reasonable width/height;
-round corners etc. will be added by the implementations as needed.
-If no icon is set, a default icon will be used.
-
-
-## Webxdc Examples
-
-The following example shows an input field and  every input is show on all peers.
-
-```html
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8"/>
-    <script src="webxdc.js"></script>
-  </head>
-  <body>
-    <input id="input" type="text"/>
-    <a href="" onclick="sendMsg(); return false;">Send</a>
-    <p id="output"></p>
-    <script>
-    
-      function sendMsg() {
-        msg = document.getElementById("input").value;
-        window.webxdc.sendUpdate({payload: msg}, 'Someone typed "'+msg+'".');
-      }
-    
-      function receiveUpdate(update) {
-        document.getElementById('output').innerHTML += update.payload + "<br>";
-      }
-    
-      window.webxdc.setUpdateListener(receiveUpdate, 0);
-    </script>
-  </body>
-</html>
-```
-
-[Webxdc Development Tool](https://github.com/deltachat/webxdc-dev)
-offers an **Webxdc Simulator** that can be used in many browsers without any installation needed.
-You can also use that repository as a template for your own app -
-just clone and start adapting things to your need.
-
-
-### Advanced Examples
-
- [2048](https://github.com/adbenitez/2048.xdc)
- [Draw](https://github.com/adbenitez/draw.xdc)
- [Poll](https://github.com/r10s/webxdc-poll/)
- [Tic Tac Toe](https://github.com/Simon-Laux/tictactoe.xdc)
- Even more with [Topic #webxdc on Github](https://github.com/topics/webxdc)
-
-
-## Closing Remarks
-
- older devices might not have the newest js features in their webview,
-  you may want to transpile your code down to an older js version eg. with https://babeljs.io
- viewport and scaling features are implementation specific,
-  if you want to have an explicit behavior, you can add eg.
-  `<meta name="viewport" content="initial-scale=1; user-scalable=no">` to your Webxdc
- there are tons of ideas for enhancements of the API and the file format,
-  eg. in the future, we will may define icon- and manifest-files,
-  allow to aggregate the state or add metadata.
--- a/examples/repl/cmdline.rs
+++ b/examples/repl/cmdline.rs
@@ -17,10 +17,11 @@ use deltachat::download::DownloadState;
 use deltachat::imex::*;
 use deltachat::location;
 use deltachat::log::LogExt;
-use deltachat::message::{self, Message, MessageState, MsgId, Viewtype};
+use deltachat::message::{self, Message, MessageState, MsgId};
 use deltachat::peerstate::*;
 use deltachat::qr::*;
 use deltachat::sql;
+use deltachat::EventType;
 use deltachat::{config, provider};
 use std::fs;
 use std::time::{Duration, SystemTime};
@@ -83,7 +84,6 @@ async fn reset_tables(context: &Context, bits: i32) {
            )
            .await
            .unwrap();
-        context.sql().config_cache().write().await.clear();
        context
            .sql()
            .execute("DELETE FROM leftgrps;", paramsv![])
@@ -92,13 +92,16 @@ async fn reset_tables(context: &Context, bits: i32) {
        println!("(8) Rest but server config reset.");
    }

-    context.emit_msgs_changed_without_ids();
+    context.emit_event(EventType::MsgsChanged {
+        chat_id: ChatId::new(0),
+        msg_id: MsgId::new(0),
+    });
 }

 async fn poke_eml_file(context: &Context, filename: impl AsRef<Path>) -> Result<()> {
    let data = dc_read_file(context, filename).await?;

-    if let Err(err) = dc_receive_imf(context, &data, false).await {
+    if let Err(err) = dc_receive_imf(context, &data, "import", 0, false).await {
        println!("dc_receive_imf errored: {:?}", err);
    }
    Ok(())
@@ -160,7 +163,10 @@ async fn poke_spec(context: &Context, spec: Option<&str>) -> bool {
    }
    println!("Import: {} items read from \"{}\".", read_cnt, &real_spec);
    if read_cnt > 0 {
-        context.emit_msgs_changed_without_ids();
+        context.emit_event(EventType::MsgsChanged {
+            chat_id: ChatId::new(0),
+            msg_id: MsgId::new(0),
+        });
    }
    true
 }
@@ -203,7 +209,7 @@ async fn log_msg(context: &Context, prefix: impl AsRef<str>, msg: &Message) {
        contact_id,
        msgtext.unwrap_or_default(),
        if msg.has_html() { "[HAS-HTML]️" } else { "" },
-        if msg.get_from_id() == ContactId::SELF {
+        if msg.get_from_id() == 1 {
            ""
        } else if msg.get_state() == MessageState::InSeen {
            "[SEEN]"
@@ -261,8 +267,9 @@ async fn log_msglist(context: &Context, msglist: &[MsgId]) -> Result<()> {
    Ok(())
 }

-async fn log_contactlist(context: &Context, contacts: &[ContactId]) -> Result<()> {
+async fn log_contactlist(context: &Context, contacts: &[u32]) -> Result<()> {
    for contact_id in contacts {
+        let line;
        let mut line2 = "".to_string();
        let contact = Contact::get_by_id(context, *contact_id).await?;
        let name = contact.get_display_name();
@@ -277,20 +284,24 @@ async fn log_contactlist(context: &Context, contacts: &[ContactId]) -> Result<()
        } else {
            ""
        };
-        let line = format!(
+        line = format!(
            "{}{} <{}>",
            if !name.is_empty() {
-                name
+                &name
            } else {
                "<name unset>"
            },
            verified_str,
-            if !addr.is_empty() { addr } else { "addr unset" }
+            if !addr.is_empty() {
+                &addr
+            } else {
+                "addr unset"
+            }
        );
-        let peerstate = Peerstate::from_addr(context, addr)
+        let peerstate = Peerstate::from_addr(context, &addr)
            .await
            .expect("peerstate error");
-        if peerstate.is_some() && *contact_id != ContactId::SELF {
+        if peerstate.is_some() && *contact_id != 1 {
            line2 = format!(
                ", prefer-encrypt={}",
                peerstate.as_ref().unwrap().prefer_encrypt
@@ -376,7 +387,6 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
                 sendfile <file> [<text>]\n\
                 sendhtml <file for html-part> [<text for plain-part>]\n\
                 sendsyncmsg\n\
-                 sendupdate <msg-id> <json status update>\n\
                 videochat\n\
                 draft [<text>]\n\
                 devicemsg <text>\n\
@@ -399,7 +409,6 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
                 html <msg-id>\n\
                 listfresh\n\
                 forward <msg-id> <chat-id>\n\
-                 resend <msg-id>\n\
                 markseen <msg-id>\n\
                 delmsg <msg-id>\n\
                 ===========================Contact commands==\n\
@@ -420,6 +429,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
                 joinqr <qr-content>\n\
                 setqr <qr-content>\n\
                 providerinfo <addr>\n\
+                 event <event-id to test>\n\
                 fileinfo <file>\n\
                 estimatedeletion <seconds>\n\
                 clear -- clear screen\n\
@@ -461,32 +471,20 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
        }
        "export-backup" => {
            let dir = dirs::home_dir().unwrap_or_default();
-            imex(
-                &context,
-                ImexMode::ExportBackup,
-                dir.as_ref(),
-                Some(arg2.to_string()),
-            )
-            .await?;
+            imex(&context, ImexMode::ExportBackup, dir.as_ref()).await?;
            println!("Exported to {}.", dir.to_string_lossy());
        }
        "import-backup" => {
            ensure!(!arg1.is_empty(), "Argument <backup-file> missing.");
-            imex(
-                &context,
-                ImexMode::ImportBackup,
-                arg1.as_ref(),
-                Some(arg2.to_string()),
-            )
-            .await?;
+            imex(&context, ImexMode::ImportBackup, arg1.as_ref()).await?;
        }
        "export-keys" => {
            let dir = dirs::home_dir().unwrap_or_default();
-            imex(&context, ImexMode::ExportSelfKeys, dir.as_ref(), None).await?;
+            imex(&context, ImexMode::ExportSelfKeys, dir.as_ref()).await?;
            println!("Exported to {}.", dir.to_string_lossy());
        }
        "import-keys" => {
-            imex(&context, ImexMode::ImportSelfKeys, arg1.as_ref(), None).await?;
+            imex(&context, ImexMode::ImportSelfKeys, arg1.as_ref()).await?;
        }
        "export-setup" => {
            let setup_code = create_setup_code(&context);
@@ -565,7 +563,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
                );

                for i in (0..cnt).rev() {
-                    let chat = Chat::load_from_db(&context, chatlist.get_chat_id(i)?).await?;
+                    let chat = Chat::load_from_db(&context, chatlist.get_chat_id(i)).await?;
                    println!(
                        "{}#{}: {} [{} fresh] {}{}{}{}",
                        chat_prefix(&chat),
@@ -708,7 +706,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
        }
        "createchat" => {
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");
-            let contact_id = ContactId::new(arg1.parse()?);
+            let contact_id: u32 = arg1.parse()?;
            let chat_id = ChatId::create_for_contact(&context, contact_id).await?;

            println!("Single#{} created successfully.", chat_id,);
@@ -736,7 +734,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
            ensure!(sel_chat.is_some(), "No chat selected");
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");

-            let contact_id_0 = ContactId::new(arg1.parse()?);
+            let contact_id_0: u32 = arg1.parse()?;
            chat::add_contact_to_chat(&context, sel_chat.as_ref().unwrap().get_id(), contact_id_0)
                .await?;
            println!("Contact added to chat.");
@@ -744,7 +742,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
        "removemember" => {
            ensure!(sel_chat.is_some(), "No chat selected.");
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");
-            let contact_id_1 = ContactId::new(arg1.parse()?);
+            let contact_id_1: u32 = arg1.parse()?;
            chat::remove_contact_from_chat(
                &context,
                sel_chat.as_ref().unwrap().get_id(),
@@ -760,7 +758,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
            chat::set_chat_name(
                &context,
                sel_chat.as_ref().unwrap().get_id(),
-                format!("{} {}", arg1, arg2).trim(),
+                &format!("{} {}", arg1, arg2).trim(),
            )
            .await?;

@@ -909,16 +907,6 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
            Some(msg_id) => println!("sync message sent as {}.", msg_id),
            None => println!("sync message not needed."),
        },
-        "sendupdate" => {
-            ensure!(
-                !arg1.is_empty() && !arg2.is_empty(),
-                "Arguments <msg-id> <json status update> expected"
-            );
-            let msg_id = MsgId::new(arg1.parse()?);
-            context
-                .send_webxdc_status_update(msg_id, arg2, "this is a webxdc status update")
-                .await?;
-        }
        "videochat" => {
            ensure!(sel_chat.is_some(), "No chat selected.");
            chat::send_videochat_invitation(&context, sel_chat.as_ref().unwrap().get_id()).await?;
@@ -926,24 +914,13 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
        "listmsgs" => {
            ensure!(!arg1.is_empty(), "Argument <query> missing.");

-            let query = format!("{} {}", arg1, arg2).trim().to_string();
            let chat = sel_chat.as_ref().map(|sel_chat| sel_chat.get_id());
            let time_start = std::time::SystemTime::now();
-            let msglist = context.search_msgs(chat, &query).await?;
+            let msglist = context.search_msgs(chat, arg1).await?;
            let time_needed = time_start.elapsed().unwrap_or_default();

            log_msglist(&context, &msglist).await?;
-            println!(
-                "{}{} messages for {}search of \"{}\"",
-                msglist.len(),
-                if msglist.len() == 1000 { "+" } else { "" },
-                if chat.is_none() {
-                    "global "
-                } else {
-                    "in-chat-"
-                },
-                query,
-            );
+            println!("{} messages.", msglist.len());
            println!("{:?} to create this list", time_needed);
        }
        "draft" => {
@@ -1100,13 +1077,6 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
            msg_ids[0] = MsgId::new(arg1.parse()?);
            chat::forward_msgs(&context, &msg_ids, chat_id).await?;
        }
-        "resend" => {
-            ensure!(!arg1.is_empty(), "Arguments <msg-id> expected");
-
-            let mut msg_ids = [MsgId::new(0); 1];
-            msg_ids[0] = MsgId::new(arg1.parse()?);
-            chat::resend_msgs(&context, &msg_ids).await?;
-        }
        "markseen" => {
            ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
            let mut msg_ids = vec![MsgId::new(0)];
@@ -1146,7 +1116,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
        "contactinfo" => {
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");

-            let contact_id = ContactId::new(arg1.parse()?);
+            let contact_id: u32 = arg1.parse()?;
            let contact = Contact::get_by_id(&context, contact_id).await?;
            let name_n_addr = contact.get_name_n_addr();

@@ -1172,7 +1142,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
                    if 0 != i {
                        res += ", ";
                    }
-                    let chat = Chat::load_from_db(&context, chatlist.get_chat_id(i)?).await?;
+                    let chat = Chat::load_from_db(&context, chatlist.get_chat_id(i)).await?;
                    res += &format!("{}#{}", chat_prefix(&chat), chat.get_id());
                }
            }
@@ -1181,16 +1151,16 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
        }
        "delcontact" => {
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");
-            Contact::delete(&context, ContactId::new(arg1.parse()?)).await?;
+            Contact::delete(&context, arg1.parse()?).await?;
        }
        "block" => {
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");
-            let contact_id = ContactId::new(arg1.parse()?);
+            let contact_id = arg1.parse()?;
            Contact::block(&context, contact_id).await?;
        }
        "unblock" => {
            ensure!(!arg1.is_empty(), "Argument <contact-id> missing.");
-            let contact_id = ContactId::new(arg1.parse()?);
+            let contact_id = arg1.parse()?;
            Contact::unblock(&context, contact_id).await?;
        }
        "listblocked" => {
@@ -1215,7 +1185,7 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
            let socks5_enabled = context
                .get_config_bool(config::Config::Socks5Enabled)
                .await?;
-            match provider::get_provider_info(&context, arg1, socks5_enabled).await {
+            match provider::get_provider_info(arg1, socks5_enabled).await {
                Some(info) => {
                    println!("Information for provider belonging to {}:", arg1);
                    println!("status: {}", info.status as u32);
@@ -1231,6 +1201,17 @@ pub async fn cmdline(context: Context, line: &str, chat_id: &mut ChatId) -> Resu
                }
            }
        }
+        // TODO: implement this again, unclear how to match this through though, without writing a parser.
+        // "event" => {
+        //     ensure!(!arg1.is_empty(), "Argument <id> missing.");
+        //     let event = arg1.parse()?;
+        //     let event = EventType::from_u32(event).ok_or(format_err!("EventType::from_u32({})", event))?;
+        //     let r = context.emit_event(event, 0 as libc::uintptr_t, 0 as libc::uintptr_t);
+        //     println!(
+        //         "Sending event {:?}({}), received value {}.",
+        //         event, event as usize, r,
+        //     );
+        // }
        "fileinfo" => {
            ensure!(!arg1.is_empty(), "Argument <file> missing.");

--- a/examples/repl/main.rs
+++ b/examples/repl/main.rs
@@ -169,7 +169,7 @@ const DB_COMMANDS: [&str; 10] = [
    "housekeeping",
 ];

-const CHAT_COMMANDS: [&str; 36] = [
+const CHAT_COMMANDS: [&str; 35] = [
    "listchats",
    "listarchived",
    "chat",
@@ -191,7 +191,6 @@ const CHAT_COMMANDS: [&str; 36] = [
    "sendfile",
    "sendhtml",
    "sendsyncmsg",
-    "sendupdate",
    "videochat",
    "draft",
    "listmedia",
@@ -207,12 +206,11 @@ const CHAT_COMMANDS: [&str; 36] = [
    "accept",
    "blockchat",
 ];
-const MESSAGE_COMMANDS: [&str; 8] = [
+const MESSAGE_COMMANDS: [&str; 7] = [
    "listmsgs",
    "msginfo",
    "listfresh",
    "forward",
-    "resend",
    "markseen",
    "delmsg",
    "download",
@@ -228,12 +226,13 @@ const CONTACT_COMMANDS: [&str; 9] = [
    "unblock",
    "listblocked",
 ];
-const MISC_COMMANDS: [&str; 11] = [
+const MISC_COMMANDS: [&str; 12] = [
    "getqr",
    "getqrsvg",
    "getbadqr",
    "checkqr",
    "joinqr",
+    "event",
    "fileinfo",
    "clear",
    "exit",
@@ -298,7 +297,7 @@ async fn start(args: Vec<String>) -> Result<(), Error> {
        println!("Error: Bad arguments, expected [db-name].");
        bail!("No db-name specified");
    }
-    let context = Context::new(Path::new(&args[1]).to_path_buf(), 0).await?;
+    let context = Context::new("CLI".into(), Path::new(&args[1]).to_path_buf(), 0).await?;

    let events = context.get_event_emitter();
    async_std::task::spawn(async move {
@@ -416,7 +415,7 @@ async fn handle_cmd(
        }
        "getqr" | "getbadqr" => {
            ctx.start_io().await;
-            let group = arg1.parse::<u32>().ok().map(ChatId::new);
+            let group = arg1.parse::<u32>().ok().map(|id| ChatId::new(id));
            let mut qr = dc_get_securejoin_qr(&ctx, group).await?;
            if !qr.is_empty() {
                if arg0 == "getbadqr" && qr.len() > 40 {
@@ -433,7 +432,7 @@ async fn handle_cmd(
        }
        "getqrsvg" => {
            ctx.start_io().await;
-            let group = arg1.parse::<u32>().ok().map(ChatId::new);
+            let group = arg1.parse::<u32>().ok().map(|id| ChatId::new(id));
            let file = dirs::home_dir().unwrap_or_default().join("qr.svg");
            match get_securejoin_qr_svg(&ctx, group).await {
                Ok(svg) => {
--- a/examples/simple.rs
+++ b/examples/simple.rs
@@ -36,7 +36,7 @@ async fn main() {
    let dir = tempdir().unwrap();
    let dbfile = dir.path().join("db.sqlite");
    log::info!("creating database {:?}", dbfile);
-    let ctx = Context::new(dbfile.into(), 0)
+    let ctx = Context::new("FakeOs".into(), dbfile.into(), 0)
        .await
        .expect("Failed to create context");
    let info = ctx.get_info().await;
--- a/python/install_python_bindings.py
+++ b/python/install_python_bindings.py
@@ -24,7 +24,7 @@ if __name__ == "__main__":

    print("running:", " ".join(cmd))
    subprocess.check_call(cmd)
-    subprocess.check_call("rm -rf build/ src/deltachat/*.so src/deltachat/*.dylib src/deltachat/*.dll" , shell=True)
+    subprocess.check_call("rm -rf build/ src/deltachat/*.so" , shell=True)

    if len(sys.argv) <= 1 or sys.argv[1] != "onlybuild":
        subprocess.check_call([
--- a/python/mypy.ini
+++ b/python/mypy.ini
@@ -17,7 +17,3 @@ ignore_missing_imports = True

 [mypy-_pytest.*]
 ignore_missing_imports = True
-
-[mypy-imap_tools.*]
-ignore_missing_imports = True
-
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=45", "wheel", "setuptools_scm>=6.2", "cffi>=1.0.0", "pkgconfig"]
+requires = ["setuptools>=45", "wheel", "setuptools_scm>=6.2", "cffi>=1.0.0"]
 build-backend = "setuptools.build_meta"

 [tool.setuptools_scm]
--- a/python/setup.py
+++ b/python/setup.py
@@ -11,11 +11,8 @@ def main():
        description='Python bindings for the Delta Chat Core library using CFFI against the Rust-implemented libdeltachat',
        long_description=long_description,
        author='holger krekel, Floris Bruynooghe, Bjoern Petersen and contributors',
-        install_requires=['cffi>=1.0.0', 'pluggy', 'imap-tools', 'requests'],
-        setup_requires=[
-            'setuptools_scm', # required for compatibility with `python3 setup.py sdist`
-            'pkgconfig',
-        ],
+        install_requires=['cffi>=1.0.0', 'pluggy', 'imapclient', 'requests'],
+        setup_requires=['setuptools_scm'], # required for compatibility with `python3 setup.py sdist`
        packages=setuptools.find_packages('src'),
        package_dir={'': 'src'},
        cffi_modules=['src/deltachat/_build.py:ffibuilder'],
--- a/python/src/deltachat/init.py
+++ b/python/src/deltachat/init.py
@@ -75,6 +75,7 @@ def run_cmdline(argv=None, account_plugins=None):
        ac.set_config("addr", args.email)
        ac.set_config("mail_pw", args.password)
        ac.set_config("mvbox_move", "0")
+        ac.set_config("mvbox_watch", "0")
        ac.set_config("sentbox_watch", "0")
        ac.set_config("bot", "1")
        configtracker = ac.configure()
--- a/python/src/deltachat/_build.py
+++ b/python/src/deltachat/_build.py
@@ -8,9 +8,9 @@ import shutil
 import subprocess
 import tempfile
 import textwrap
+import types

 import cffi
-import pkgconfig  # type: ignore


 def local_build_flags(projdir, target):
@@ -19,31 +19,36 @@ def local_build_flags(projdir, target):
    :param projdir: The root directory of the deltachat-core-rust project.
    :param target: The rust build target, `debug` or `release`.
    """
-    flags = {}
+    flags = types.SimpleNamespace()
    if platform.system() == 'Darwin':
-        flags['libraries'] = ['resolv', 'dl']
-        flags['extra_link_args'] = [
+        flags.libs = ['resolv', 'dl']
+        flags.extra_link_args = [
                '-framework', 'CoreFoundation',
                '-framework', 'CoreServices',
                '-framework', 'Security',
        ]
    elif platform.system() == 'Linux':
-        flags['libraries'] = ['rt', 'dl', 'm']
-        flags['extra_link_args'] = []
+        flags.libs = ['rt', 'dl', 'm']
+        flags.extra_link_args = []
    else:
        raise NotImplementedError("Compilation not supported yet on Windows, can you help?")
    target_dir = os.environ.get("CARGO_TARGET_DIR")
    if target_dir is None:
        target_dir = os.path.join(projdir, 'target')
-    flags['extra_objects'] = [os.path.join(target_dir, target, 'libdeltachat.a')]
-    assert os.path.exists(flags['extra_objects'][0]), flags['extra_objects']
-    flags['include_dirs'] = [os.path.join(projdir, 'deltachat-ffi')]
+    flags.objs = [os.path.join(target_dir, target, 'libdeltachat.a')]
+    assert os.path.exists(flags.objs[0]), flags.objs
+    flags.incs = [os.path.join(projdir, 'deltachat-ffi')]
    return flags


 def system_build_flags():
    """Construct build flags for building against an installed libdeltachat."""
-    return pkgconfig.parse('deltachat')
+    flags = types.SimpleNamespace()
+    flags.libs = ['deltachat']
+    flags.objs = []
+    flags.incs = []
+    flags.extra_link_args = []
+    return flags


 def extract_functions(flags):
@@ -64,7 +69,7 @@ def extract_functions(flags):
            src_fp.write('#include <deltachat.h>')
        cc.preprocess(source=src_name,
                      output_file=dst_name,
-                      include_dirs=flags['include_dirs'],
+                      include_dirs=flags.incs,
                      macros=[('PY_CFFI', '1')])
        with open(dst_name, "r") as dst_fp:
            return dst_fp.read()
@@ -100,7 +105,7 @@ def find_header(flags):
        try:
            os.chdir(tmpdir)
            cc.compile(sources=["where.c"],
-                       include_dirs=flags['include_dirs'],
+                       include_dirs=flags.incs,
                       macros=[("PY_CFFI_INC", "1")])
        finally:
            os.chdir(cwd)
@@ -178,7 +183,10 @@ def ffibuilder():
                return DC_EVENT_DATA2_IS_STRING(e);
            }
        """,
-        **flags,
+        include_dirs=flags.incs,
+        libraries=flags.libs,
+        extra_objects=flags.objs,
+        extra_link_args=flags.extra_link_args,
    )
    builder.cdef("""
        typedef int... time_t;
--- a/python/src/deltachat/account.py
+++ b/python/src/deltachat/account.py
@@ -179,12 +179,6 @@ class Account(object):
        """
        return True if lib.dc_is_configured(self._dc_context) else False

-    def is_open(self) -> bool:
-        """Determine if account is open
-
-        :returns True if account is open."""
-        return True if lib.dc_context_is_open(self._dc_context) else False
-
    def set_avatar(self, img_path: Optional[str]) -> None:
        """Set self avatar.

@@ -409,10 +403,7 @@ class Account(object):
        """
        arr = array("i")
        for msg in messages:
-            if isinstance(msg, Message):
-                arr.append(msg.id)
-            else:
-                arr.append(msg)
+            arr.append(getattr(msg, "id", msg))
        msg_ids = ffi.cast("uint32_t*", ffi.from_buffer(arr))
        lib.dc_markseen_msgs(self._dc_context, msg_ids, len(messages))

--- a/python/src/deltachat/chat.py
+++ b/python/src/deltachat/chat.py
@@ -5,7 +5,7 @@ import calendar
 import json
 from datetime import datetime, timezone
 import os
-from .cutil import as_dc_charpointer, from_dc_charpointer, from_optional_dc_charpointer, iter_array
+from .cutil import as_dc_charpointer, from_dc_charpointer, iter_array
 from .capi import lib, ffi
 from . import const
 from .message import Message
@@ -517,7 +517,7 @@ class Chat(object):
                    lib.dc_array_get_timestamp(dc_array, i),
                    timezone.utc
                ),
-                marker=from_optional_dc_charpointer(lib.dc_array_get_marker(dc_array, i)),
+                marker=from_dc_charpointer(lib.dc_array_get_marker(dc_array, i)),
            )
            for i in range(lib.dc_array_get_cnt(dc_array))
        ]
--- a/python/src/deltachat/direct_imap.py
+++ b/python/src/deltachat/direct_imap.py
@@ -4,22 +4,25 @@ and for cleaning up inbox/mvbox for each test function run.
 """

 import io
+import email
 import ssl
 import pathlib
-from imap_tools import MailBox, MailBoxTls, errors, AND, Header, MailMessageFlags, MailMessage
+from imapclient import IMAPClient
+from imapclient.exceptions import IMAPClientError
 import imaplib
 import deltachat
 from deltachat import const, Account
-from typing import List


+SEEN = b'\\Seen'
+DELETED = b'\\Deleted'
 FLAGS = b'FLAGS'
 FETCH = b'FETCH'
 ALL = "1:*"


@deltachat.global_hookimpl
-def dc_account_extra_configure(account: Account):
+def dc_account_extra_configure(account):
    """ Reset the account (we reuse accounts across tests)
    and make 'account.direct_imap' available for direct IMAP ops.
    """
@@ -33,10 +36,12 @@ def dc_account_extra_configure(account: Account):
                    assert imap.select_folder(folder)
                    imap.delete(ALL, expunge=True)
                else:
-                    imap.conn.folder.delete(folder)
+                    imap.conn.delete_folder(folder)
                    # We just deleted the folder, so we have to make DC forget about it, too
                    if account.get_config("configured_sentbox_folder") == folder:
                        account.set_config("configured_sentbox_folder", None)
+                    if account.get_config("configured_spam_folder") == folder:
+                        account.set_config("configured_spam_folder", None)

            setattr(account, "direct_imap", imap)

@@ -83,34 +88,37 @@ class DirectImap:
            ssl_context.verify_mode = ssl.CERT_NONE

        if security == const.DC_SOCKET_STARTTLS:
-            self.conn = MailBoxTls(host, port, ssl_context=ssl_context)
-        elif security == const.DC_SOCKET_PLAIN or security == const.DC_SOCKET_SSL:
-            self.conn = MailBox(host, port, ssl_context=ssl_context)
+            self.conn = IMAPClient(host, port, ssl=False)
+            self.conn.starttls(ssl_context)
+        elif security == const.DC_SOCKET_PLAIN:
+            self.conn = IMAPClient(host, port, ssl=False)
+        elif security == const.DC_SOCKET_SSL:
+            self.conn = IMAPClient(host, port, ssl_context=ssl_context)
        self.conn.login(user, pw)

        self.select_folder("INBOX")

    def shutdown(self):
        try:
-            self.idle_done()
-        except (OSError, imaplib.IMAP4.abort):
+            self.conn.idle_done()
+        except (OSError, IMAPClientError):
            pass
        try:
            self.conn.logout()
-        except (OSError, imaplib.IMAP4.abort):
+        except (OSError, IMAPClientError):
            print("Could not logout direct_imap conn")

    def create_folder(self, foldername):
        try:
-            self.conn.folder.create(foldername)
-        except errors.MailboxFolderCreateError as e:
+            self.conn.create_folder(foldername)
+        except imaplib.IMAP4.error as e:
            print("Can't create", foldername, "probably it already exists:", str(e))

-    def select_folder(self, foldername: str) -> tuple:
+    def select_folder(self, foldername):
        assert not self._idling
-        return self.conn.folder.set(foldername)
+        return self.conn.select_folder(foldername)

-    def select_config_folder(self, config_name: str):
+    def select_config_folder(self, config_name):
        """ Return info about selected folder if it is
        configured, otherwise None. """
        if "_" not in config_name:
@@ -119,36 +127,50 @@ class DirectImap:
        if foldername:
            return self.select_folder(foldername)

-    def list_folders(self) -> List[str]:
+    def list_folders(self):
        """ return list of all existing folder names"""
        assert not self._idling
-        return [folder.name for folder in self.conn.folder.list()]
+        folders = []
+        for meta, sep, foldername in self.conn.list_folders():
+            folders.append(foldername)
+        return folders

-    def delete(self, uid_list: str, expunge=True):
+    def delete(self, range, expunge=True):
        """ delete a range of messages (imap-syntax).
        If expunge is true, perform the expunge-operation
        to make sure the messages are really gone and not
        just flagged as deleted.
        """
-        self.conn.client.uid('STORE', uid_list, '+FLAGS', r'(\Deleted)')
+        self.conn.set_flags(range, [DELETED])
        if expunge:
            self.conn.expunge()

-    def get_all_messages(self) -> List[MailMessage]:
+    def get_all_messages(self):
        assert not self._idling
-        return [mail for mail in self.conn.fetch()]

-    def get_unread_messages(self) -> List[str]:
+        # Flush unsolicited responses. IMAPClient has problems
+        # dealing with them: https://github.com/mjs/imapclient/issues/334
+        # When this NOOP was introduced, next FETCH returned empty
+        # result instead of a single message, even though IMAP server
+        # can only return more untagged responses than required, not
+        # less.
+        self.conn.noop()
+
+        return self.conn.fetch(ALL, [FLAGS])
+
+    def get_unread_messages(self):
        assert not self._idling
-        return [msg.uid for msg in self.conn.fetch(AND(seen=False))]
+        res = self.conn.fetch(ALL, [FLAGS])
+        return [uid for uid in res
+                if SEEN not in res[uid][FLAGS]]

    def mark_all_read(self):
        messages = self.get_unread_messages()
        if messages:
-            res = self.conn.flag(messages, MailMessageFlags.SEEN, True)
+            res = self.conn.set_flags(messages, [SEEN])
            print("marked seen:", messages, res)

-    def get_unread_cnt(self) -> int:
+    def get_unread_cnt(self):
        return len(self.get_unread_messages())

    def dump_imap_structures(self, dir, logfile):
@@ -170,20 +192,21 @@ class DirectImap:
            log("---------", imapfolder, len(messages), "messages ---------")
            # get message content without auto-marking it as seen
            # fetching 'RFC822' would mark it as seen.
-            for msg in self.conn.fetch(mark_seen=False):
-                body = getattr(msg.obj, "text", None)
-                if not body:
-                    body = getattr(msg.obj, "html", None)
-                if not body:
-                    log("Message", msg.uid, "has empty body")
+            requested = [b'BODY.PEEK[]', FLAGS]
+            for uid, data in self.conn.fetch(messages, requested).items():
+                body_bytes = data[b'BODY[]']
+                if not body_bytes:
+                    log("Message", uid, "has empty body")
                    continue

+                flags = data[FLAGS]
                path = pathlib.Path(str(dir)).joinpath("IMAP", self.logid, imapfolder)
                path.mkdir(parents=True, exist_ok=True)
-                fn = path.joinpath(str(msg.uid))
-                fn.write_bytes(body)
-                log("Message", msg.uid, fn)
-                log("Message", msg.uid, msg.flags, "Message-Id:", msg.obj.get("Message-Id"))
+                fn = path.joinpath(str(uid))
+                fn.write_bytes(body_bytes)
+                log("Message", uid, fn)
+                email_message = email.message_from_bytes(body_bytes)
+                log("Message", uid, flags, "Message-Id:", email_message.get("Message-Id"))

        if empty_folders:
            log("--------- EMPTY FOLDERS:", empty_folders)
@@ -193,58 +216,51 @@ class DirectImap:
    def idle_start(self):
        """ switch this connection to idle mode. non-blocking. """
        assert not self._idling
-        res = self.conn.idle.start()
+        res = self.conn.idle()
        self._idling = True
        return res

-    def idle_check(self, terminate=False, timeout=None) -> List[bytes]:
+    def idle_check(self, terminate=False):
        """ (blocking) wait for next idle message from server. """
        assert self._idling
        self.account.log("imap-direct: calling idle_check")
-        res = self.conn.idle.poll(timeout=timeout)
+        res = self.conn.idle_check(timeout=30)
+        if len(res) == 0:
+            raise TimeoutError
        if terminate:
            self.idle_done()
        self.account.log("imap-direct: idle_check returned {!r}".format(res))
        return res

-    def idle_wait_for_new_message(self, terminate=False, timeout=None) -> bytes:
-        while 1:
-            for item in self.idle_check(timeout=timeout):
-                if b'EXISTS' in item or b'RECENT' in item:
-                    if terminate:
-                        self.idle_done()
-                    return item
-
-    def idle_wait_for_seen(self, terminate=False, timeout=None) -> int:
-        """ Return first message with SEEN flag from a running idle-stream.
+    def idle_wait_for_seen(self):
+        """ Return first message with SEEN flag
+        from a running idle-stream REtiurn.
        """
        while 1:
-            for item in self.idle_check(timeout=timeout):
-                if FETCH in item:
-                    self.account.log(str(item))
-                    if FLAGS in item and rb'\Seen' in item:
-                        if terminate:
-                            self.idle_done()
-                        return int(item.split(b' ')[1])
+            for item in self.idle_check():
+                if item[1] == FETCH:
+                    if item[2][0] == FLAGS:
+                        if SEEN in item[2][1]:
+                            return item[0]

    def idle_done(self):
        """ send idle-done to server if we are currently in idle mode. """
        if self._idling:
-            res = self.conn.idle.stop()
+            res = self.conn.idle_done()
            self._idling = False
            return res

-    def append(self, folder: str, msg: str):
+    def append(self, folder, msg):
        """Upload a message to *folder*.
        Trailing whitespace or a linebreak at the beginning will be removed automatically.
        """
        if msg.startswith("\n"):
            msg = msg[1:]
        msg = '\n'.join([s.lstrip() for s in msg.splitlines()])
-        self.conn.append(bytes(msg, encoding='ascii'), folder)
+        self.conn.append(folder, msg)

-    def get_uid_by_message_id(self, message_id) -> str:
-        msgs = [msg.uid for msg in self.conn.fetch(AND(header=Header('MESSAGE-ID', message_id)))]
+    def get_uid_by_message_id(self, message_id):
+        msgs = self.conn.search(['HEADER', 'MESSAGE-ID', message_id])
        if len(msgs) == 0:
            raise Exception("Did not find message " + message_id + ", maybe you forgot to select the correct folder?")
        return msgs[0]
--- a/python/src/deltachat/events.py
+++ b/python/src/deltachat/events.py
@@ -40,7 +40,7 @@ class FFIEventLogger:

    @account_hookimpl
    def ac_log_line(self, message):
-        t = threading.current_thread()
+        t = threading.currentThread()
        tname = getattr(t, "name", t)
        if tname == "MainThread":
            tname = "MAIN"
@@ -193,7 +193,7 @@ class EventThread(threading.Thread):
    def __init__(self, account) -> None:
        self.account = account
        super(EventThread, self).__init__(name="events")
-        self.daemon = True
+        self.setDaemon(True)
        self._marked_for_shutdown = False
        self.start()

--- a/python/src/deltachat/message.py
+++ b/python/src/deltachat/message.py
@@ -225,10 +225,6 @@ class Message(object):
        """Quote setter"""
        lib.dc_msg_set_quote(self._dc_msg, quoted_message._dc_msg)

-    def force_plaintext(self) -> None:
-        """Force the message to be sent in plain text."""
-        lib.dc_msg_force_plaintext(self._dc_msg)
-
    def get_mime_headers(self):
        """ return mime-header object for an incoming message.

--- a/python/src/deltachat/testplugin.py
+++ b/python/src/deltachat/testplugin.py
@@ -241,6 +241,7 @@ def acfactory(pytestconfig, tmpdir, request, session_liveconfig, data):
        def make_account(self, path, logid, quiet=False):
            ac = Account(path, logging=self._logging)
            ac._evtracker = ac.add_account_plugin(FFIEventTracker(ac))
+            ac._evtracker.set_timeout(30)
            ac.addr = ac.get_self_contact().addr
            ac.set_config("displayname", logid)
            if not quiet:
@@ -302,20 +303,21 @@ def acfactory(pytestconfig, tmpdir, request, session_liveconfig, data):
                self._preconfigure_key(ac, configdict['addr'])
            return ac, dict(configdict)

-        def get_online_configuring_account(self, sentbox=False, move=False,
+        def get_online_configuring_account(self, mvbox=False, sentbox=False, move=False,
                                           pre_generated_key=True, quiet=False, config={}):
            ac, configdict = self.get_online_config(
                pre_generated_key=pre_generated_key, quiet=quiet)
            configdict.update(config)
+            configdict["mvbox_watch"] = str(int(mvbox))
            configdict["mvbox_move"] = str(int(move))
            configdict["sentbox_watch"] = str(int(sentbox))
            ac.update_config(configdict)
            ac._configtracker = ac.configure()
            return ac

-        def get_one_online_account(self, pre_generated_key=True, move=False):
+        def get_one_online_account(self, pre_generated_key=True, mvbox=False, move=False):
            ac1 = self.get_online_configuring_account(
-                pre_generated_key=pre_generated_key, move=move)
+                pre_generated_key=pre_generated_key, mvbox=mvbox, move=move)
            self.wait_configure_and_start_io([ac1])
            return ac1

@@ -334,7 +336,7 @@ def acfactory(pytestconfig, tmpdir, request, session_liveconfig, data):
            return accounts

        def clone_online_account(self, account, pre_generated_key=True):
-            """ Clones addr, mail_pw, mvbox_move, sentbox_watch and the
+            """ Clones addr, mail_pw, mvbox_watch, mvbox_move, sentbox_watch and the
            direct_imap object of an online account. This simulates the user setting
            up a new device without importing a backup.

@@ -349,6 +351,7 @@ def acfactory(pytestconfig, tmpdir, request, session_liveconfig, data):
            ac.update_config(dict(
                addr=account.get_config("addr"),
                mail_pw=account.get_config("mail_pw"),
+                mvbox_watch=account.get_config("mvbox_watch"),
                mvbox_move=account.get_config("mvbox_move"),
                sentbox_watch=account.get_config("sentbox_watch"),
            ))
@@ -464,7 +467,7 @@ class BotProcess:
        # the (unicode) lines available for readers through a queue.
        self.stdout_queue = queue.Queue()
        self.stdout_thread = t = threading.Thread(target=self._run_stdout_thread, name="bot-stdout-thread")
-        t.daemon = True
+        t.setDaemon(True)
        t.start()

    def _run_stdout_thread(self) -> None:
@@ -482,7 +485,7 @@ class BotProcess:
    def kill(self) -> None:
        self.popen.kill()

-    def wait(self, timeout=None) -> None:
+    def wait(self, timeout=30) -> None:
        self.popen.wait(timeout=timeout)

    def fnmatch_lines(self, pattern_lines):
@@ -491,7 +494,7 @@ class BotProcess:
            print("+++FNMATCH:", next_pattern)
            ignored = []
            while 1:
-                line = self.stdout_queue.get()
+                line = self.stdout_queue.get(timeout=15)
                if line is None:
                    if ignored:
                        print("BOT stdout terminated after these lines")
--- a/python/src/deltachat/tracker.py
+++ b/python/src/deltachat/tracker.py
@@ -90,11 +90,11 @@ class ConfigureTracker:
            if data1 is None or evdata == data1:
                break

-    def wait_finish(self, timeout=None):
+    def wait_finish(self):
        """ wait until configure is completed.

        Raise Exception if Configure failed
        """
-        if not self._configure_events.get(timeout=timeout):
+        if not self._configure_events.get():
            content = "\n".join(map(str, self._ffi_events))
            raise ConfigureFailed(content)
--- a/python/tests/bench_test_setup.py
+++ b/python/tests/bench_test_setup.py
@@ -1,18 +0,0 @@
-"""
-run with:
-
-     pytest -vv --durations=10 bench_empty.py
-
-to see timings of test setups.
-"""
-
-import pytest
-
-
-class TestEmpty:
-    def test_prepare_setup_measurings(self, acfactory):
-        acfactory.get_many_online_accounts(5)
-
-    @pytest.mark.parametrize("num", range(0, 5))
-    def test_setup_online_accounts(self, acfactory, num):
-        acfactory.get_many_online_accounts(num)
--- a/python/tests/test_account.py
+++ b/python/tests/test_account.py
@@ -11,7 +11,6 @@ from deltachat.hookspec import account_hookimpl
 from deltachat.capi import ffi, lib
 from deltachat.cutil import iter_array
 from datetime import datetime, timedelta, timezone
-from imap_tools import AND, U


@pytest.mark.parametrize("msgtext,res", [
@@ -42,8 +41,8 @@ class TestOfflineAccountBasic:
    def test_wrong_db(self, tmpdir):
        p = tmpdir.join("hello.db")
        p.write("123")
-        account = Account(p.strpath)
-        assert not account.is_open()
+        with pytest.raises(ValueError):
+            Account(p.strpath)

    def test_os_name(self, tmpdir):
        p = tmpdir.join("hello.db")
@@ -58,7 +57,7 @@ class TestOfflineAccountBasic:
        alice_public = data.read_path("key/alice-public.asc")
        alice_secret = data.read_path("key/alice-secret.asc")
        assert alice_public and alice_secret
-        ac._preconfigure_keypair("alice@example.org", alice_public, alice_secret)
+        ac._preconfigure_keypair("alice@example.com", alice_public, alice_secret)

    def test_getinfo(self, acfactory):
        ac1 = acfactory.get_unconfigured_account()
@@ -653,6 +652,8 @@ class TestOnlineAccount:
            pre_generated_key=False,
            config={"key_gen_type": str(const.DC_KEY_GEN_ED25519)}
        )
+        # rsa key gen can be slow especially on CI, adjust timeout
+        ac1._evtracker.set_timeout(240)
        acfactory.wait_configure_and_start_io()
        chat = acfactory.get_accepted_chat(ac1, ac2)

@@ -736,6 +737,7 @@ class TestOnlineAccount:
        # make sure we are not sending message to ourselves
        assert self_addr not in ev.data2
        assert other_addr in ev.data2
+        ev = ac1._evtracker.get_matching("DC_EVENT_DELETED_BLOB_FILE")

        lp.sec("ac1: setting bcc_self=1")
        ac1.set_config("bcc_self", "1")
@@ -751,6 +753,7 @@ class TestOnlineAccount:
        # now make sure we are sending message to ourselves too
        assert self_addr in ev.data2
        assert other_addr in ev.data2
+        ev = ac1._evtracker.get_matching("DC_EVENT_DELETED_BLOB_FILE")
        assert ac1.direct_imap.idle_wait_for_seen()

        # Second client receives only second message, but not the first
@@ -857,7 +860,7 @@ class TestOnlineAccount:

    def test_mvbox_sentbox_threads(self, acfactory, lp):
        lp.sec("ac1: start with mvbox thread")
-        ac1 = acfactory.get_online_configuring_account(move=True, sentbox=True)
+        ac1 = acfactory.get_online_configuring_account(mvbox=True, move=True, sentbox=True)

        lp.sec("ac2: start without mvbox/sentbox threads")
        ac2 = acfactory.get_online_configuring_account()
@@ -871,31 +874,27 @@ class TestOnlineAccount:

    def test_move_works(self, acfactory):
        ac1 = acfactory.get_online_configuring_account()
-        ac2 = acfactory.get_online_configuring_account(move=True)
+        ac2 = acfactory.get_online_configuring_account(mvbox=True, move=True)
        acfactory.wait_configure_and_start_io()
        chat = acfactory.get_accepted_chat(ac1, ac2)
        chat.send_text("message1")
-
-        # Message is moved to the movebox
-        ac2._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
-
-        # Message is downloaded
        ev = ac2._evtracker.get_matching("DC_EVENT_INCOMING_MSG")
        assert ev.data2 > const.DC_CHAT_ID_LAST_SPECIAL
+        ac2._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")

    def test_move_works_on_self_sent(self, acfactory):
-        ac1 = acfactory.get_online_configuring_account(move=True)
+        ac1 = acfactory.get_online_configuring_account(mvbox=True, move=True)
        ac2 = acfactory.get_online_configuring_account()
        acfactory.wait_configure_and_start_io()
        ac1.set_config("bcc_self", "1")

        chat = acfactory.get_accepted_chat(ac1, ac2)
        chat.send_text("message1")
-        ac1._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
        chat.send_text("message2")
-        ac1._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
        chat.send_text("message3")
        ac1._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+        ac1._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+        ac1._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")

    def test_forward_messages(self, acfactory, lp):
        ac1, ac2 = acfactory.get_two_online_accounts()
@@ -954,24 +953,12 @@ class TestOnlineAccount:
        assert msg_in.is_forwarded()

    def test_send_self_message(self, acfactory, lp):
-        ac1 = acfactory.get_one_online_account(move=True)
+        ac1 = acfactory.get_one_online_account(mvbox=True, move=True)
        lp.sec("ac1: create self chat")
        chat = ac1.get_self_contact().create_chat()
        chat.send_text("hello")
        ac1._evtracker.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")

-    def test_send_dot(self, acfactory, lp):
-        """Test that a single dot is properly escaped in SMTP protocol"""
-        ac1, ac2 = acfactory.get_two_online_accounts()
-        chat = acfactory.get_accepted_chat(ac1, ac2)
-
-        lp.sec("sending message")
-        msg_out = chat.send_text(".")
-
-        lp.sec("receiving message")
-        msg_in = ac2._evtracker.wait_next_incoming_message()
-        assert msg_in.text == msg_out.text
-
    def test_send_and_receive_message_markseen(self, acfactory, lp):
        ac1, ac2 = acfactory.get_two_online_accounts()

@@ -996,8 +983,7 @@ class TestOnlineAccount:
        assert msg2 in chat2.get_messages()
        assert chat2.is_contact_request()
        assert chat2.count_fresh_messages() == 1
-        # Like it or not, this assert is flaky
-        # assert msg2.time_received >= msg1.time_sent
+        assert msg2.time_received >= msg1.time_sent

        lp.sec("create new chat with contact and verify it's proper")
        chat2b = msg2.create_chat()
@@ -1026,7 +1012,7 @@ class TestOnlineAccount:
        assert ev.data1 == msg2.chat.id
        assert ev.data2 == 0

-        ac2.direct_imap.idle_wait_for_new_message(terminate=True)
+        ac2.direct_imap.idle_check(terminate=True)
        lp.step("1")
        for i in range(2):
            ev = ac1._evtracker.get_matching("DC_EVENT_MSG_READ")
@@ -1048,88 +1034,30 @@ class TestOnlineAccount:

    def test_moved_markseen(self, acfactory, lp):
        """Test that message already moved to DeltaChat folder is marked as seen."""
-        ac1 = acfactory.get_online_configuring_account()
-        ac2 = acfactory.get_online_configuring_account(move=True)
+        ac1 = acfactory.get_online_configuring_account(mvbox=True, config={"inbox_watch": "0"})
+        ac2 = acfactory.get_online_configuring_account()
        acfactory.wait_configure_and_start_io([ac1, ac2])
+        ac1.set_config("bcc_self", "1")

-        ac2.stop_io()
-        ac2.direct_imap.idle_start()
-
+        ac1.direct_imap.idle_start()
        ac1.create_chat(ac2).send_text("Hello!")
-
-        ac2.direct_imap.idle_wait_for_new_message(terminate=True)
+        ac1.direct_imap.idle_check(terminate=True)
+        ac1.stop_io()

        # Emulate moving of the message to DeltaChat folder by Sieve rule.
        # mailcow server contains this rule by default.
-        ac2.direct_imap.conn.move(["*"], "DeltaChat")
+        ac1.direct_imap.conn.move(["*"], "DeltaChat")

-        ac2.direct_imap.select_folder("DeltaChat")
-        ac2.direct_imap.idle_start()
-        ac2.start_io()
-        msg = ac2._evtracker.wait_next_incoming_message()
+        ac1.direct_imap.select_folder("DeltaChat")
+        ac1.direct_imap.idle_start()
+        ac1.start_io()
+        ac1.direct_imap.idle_wait_for_seen()
+        ac1.direct_imap.idle_done()

-        # Accept the contact request.
-        msg.chat.accept()
-        ac2.mark_seen_messages([msg])
-        uid = ac2.direct_imap.idle_wait_for_seen(terminate=True)
-
-        assert len([a for a in ac2.direct_imap.conn.fetch(AND(seen=True, uid=U(uid, "*")))]) == 1
-
-    def test_multidevice_sync_seen(self, acfactory, lp):
-        """Test that message marked as seen on one device is marked as seen on another."""
-        ac1 = acfactory.get_online_configuring_account()
-        ac2 = acfactory.get_online_configuring_account()
-        ac1_clone = acfactory.clone_online_account(ac1)
-        acfactory.wait_configure_and_start_io()
-
-        ac1.set_config("bcc_self", "1")
-        ac1_clone.set_config("bcc_self", "1")
-
-        ac1_chat = ac1.create_chat(ac2)
-        ac1_clone_chat = ac1_clone.create_chat(ac2)
-        ac2_chat = ac2.create_chat(ac1)
-
-        lp.sec("Send a message from ac2 to ac1 and check that it's 'fresh'")
-        ac2_chat.send_text("Hi")
-        ac1_message = ac1._evtracker.wait_next_incoming_message()
-        ac1_clone_message = ac1_clone._evtracker.wait_next_incoming_message()
-        assert ac1_chat.count_fresh_messages() == 1
-        assert ac1_clone_chat.count_fresh_messages() == 1
-        assert ac1_message.is_in_fresh
-        assert ac1_clone_message.is_in_fresh
-
-        lp.sec("ac1 marks message as seen on the first device")
-        ac1.mark_seen_messages([ac1_message])
-        assert ac1_message.is_in_seen
-
-        lp.sec("ac1 clone detects that message is marked as seen")
-        ev = ac1_clone._evtracker.get_matching("DC_EVENT_MSGS_NOTICED")
-        assert ev.data1 == ac1_clone_chat.id
-        assert ac1_clone_message.is_in_seen
-
-        lp.sec("Send an ephemeral message from ac2 to ac1")
-        ac2_chat.set_ephemeral_timer(60)
-        ac1._evtracker.get_matching("DC_EVENT_CHAT_EPHEMERAL_TIMER_MODIFIED")
-        ac1._evtracker.wait_next_incoming_message()
-        ac1_clone._evtracker.get_matching("DC_EVENT_CHAT_EPHEMERAL_TIMER_MODIFIED")
-        ac1_clone._evtracker.wait_next_incoming_message()
-
-        ac2_chat.send_text("Foobar")
-        ac1_message = ac1._evtracker.wait_next_incoming_message()
-        ac1_clone_message = ac1_clone._evtracker.wait_next_incoming_message()
-        assert "Ephemeral timer: 60\n" in ac1_message.get_message_info()
-        assert "Expires: " not in ac1_clone_message.get_message_info()
-        assert "Ephemeral timer: 60\n" in ac1_message.get_message_info()
-        assert "Expires: " not in ac1_clone_message.get_message_info()
-
-        ac1.mark_seen_messages([ac1_message])
-        assert ac1_message.is_in_seen
-        assert "Expires: " in ac1_message.get_message_info()
-        ev = ac1_clone._evtracker.get_matching("DC_EVENT_MSGS_NOTICED")
-        assert ev.data1 == ac1_clone_chat.id
-        assert ac1_clone_message.is_in_seen
-        # Test that the timer is started on the second device after synchronizing the seen status.
-        assert "Expires: " in ac1_clone_message.get_message_info()
+        fetch = list(ac1.direct_imap.conn.fetch("*", b'FLAGS').values())
+        flags = fetch[-1][b'FLAGS']
+        is_seen = b'\\Seen' in flags
+        assert is_seen

    def test_message_override_sender_name(self, acfactory, lp):
        ac1, ac2 = acfactory.get_two_online_accounts()
@@ -1167,8 +1095,8 @@ class TestOnlineAccount:
    def test_markseen_message_and_mdn(self, acfactory, mvbox_move):
        # Please only change this test if you are very sure that it will still catch the issues it catches now.
        # We had so many problems with markseen, if in doubt, rather create another test, it can't harm.
-        ac1 = acfactory.get_online_configuring_account(move=mvbox_move)
-        ac2 = acfactory.get_online_configuring_account(move=mvbox_move)
+        ac1 = acfactory.get_online_configuring_account(move=mvbox_move, mvbox=mvbox_move)
+        ac2 = acfactory.get_online_configuring_account(move=mvbox_move, mvbox=mvbox_move)

        acfactory.wait_configure_and_start_io()
        # Do not send BCC to self, we only want to test MDN on ac1.
@@ -1214,7 +1142,7 @@ class TestOnlineAccount:
        assert not msg_reply1.chat.is_group()
        assert msg_reply1.chat.id == private_chat1.id

-    def test_mdn_asymmetric(self, acfactory, lp):
+    def test_mdn_asymetric(self, acfactory, lp):
        ac1, ac2 = acfactory.get_two_online_accounts(move=True)

        lp.sec("ac1: create chat with ac2")
@@ -1238,9 +1166,6 @@ class TestOnlineAccount:

        assert len(msg.chat.get_messages()) == 1

-        ac1.direct_imap.select_config_folder("mvbox")
-        ac1.direct_imap.idle_start()
-
        lp.sec("ac2: mark incoming message as seen")
        ac2.mark_seen_messages([msg])

@@ -1250,9 +1175,6 @@ class TestOnlineAccount:

        assert len(chat.get_messages()) == 1

-        # Wait for the message to be marked as seen on IMAP.
-        assert ac1.direct_imap.idle_wait_for_seen()
-
        # MDN is received even though MDNs are already disabled
        assert msg_out.is_out_mdn_received()

@@ -1430,22 +1352,18 @@ class TestOnlineAccount:
        assert not device_chat.can_send()
        assert device_chat.get_draft() is None

-    def test_dont_show_emails(self, acfactory, lp):
+    def test_dont_show_emails_in_draft_folder(self, acfactory, lp):
        """Most mailboxes have a "Drafts" folder where constantly new emails appear but we don't actually want to show them.
        So: If it's outgoing AND there is no Received header AND it's not in the sentbox, then ignore the email.

-        If the draft email is sent out later (i.e. moved to "Sent"), it must be shown.
-
-        Also, test that unknown emails in the Spam folder are not shown."""
+        If the draft email is sent out later (i.e. moved to "Sent"), it must be shown."""
        ac1 = acfactory.get_online_configuring_account()
        ac1.set_config("show_emails", "2")
-        ac1.create_contact("alice@example.org").create_chat()
+        ac1.create_contact("alice@example.com").create_chat()

        acfactory.wait_configure(ac1)
        ac1.direct_imap.create_folder("Drafts")
        ac1.direct_imap.create_folder("Sent")
-        ac1.direct_imap.create_folder("Spam")
-        ac1.direct_imap.create_folder("Junk")

        acfactory.wait_configure_and_start_io()
        # Wait until each folder was selected once and we are IDLEing again:
@@ -1455,7 +1373,7 @@ class TestOnlineAccount:
        ac1.direct_imap.append("Drafts", """
            From: ac1 <{}>
            Subject: subj
-            To: alice@example.org
+            To: alice@example.com
            Message-ID: <aepiors@example.org>
            Content-Type: text/plain; charset=utf-8

@@ -1464,30 +1382,12 @@ class TestOnlineAccount:
        ac1.direct_imap.append("Sent", """
            From: ac1 <{}>
            Subject: subj
-            To: alice@example.org
+            To: alice@example.com
            Message-ID: <hsabaeni@example.org>
            Content-Type: text/plain; charset=utf-8

            message in Sent
        """.format(ac1.get_config("configured_addr")))
-        ac1.direct_imap.append("Spam", """
-            From: unknown.address@junk.org
-            Subject: subj
-            To: {}
-            Message-ID: <spam.message@junk.org>
-            Content-Type: text/plain; charset=utf-8
-
-            Unknown message in Spam
-        """.format(ac1.get_config("configured_addr")))
-        ac1.direct_imap.append("Junk", """
-            From: unknown.address@junk.org
-            Subject: subj
-            To: {}
-            Message-ID: <spam.message@junk.org>
-            Content-Type: text/plain; charset=utf-8
-
-            Unknown message in Junk
-        """.format(ac1.get_config("configured_addr")))

        ac1.set_config("scan_all_folders_debounce_secs", "0")
        lp.sec("All prepared, now let DC find the message")
@@ -1501,10 +1401,6 @@ class TestOnlineAccount:
        assert msg.text == "subj – message in Sent"
        assert len(msg.chat.get_messages()) == 1

-        assert not any("unknown.address" in c.get_name() for c in ac1.get_chats())
-        ac1.direct_imap.select_folder("Spam")
-        assert ac1.direct_imap.get_uid_by_message_id("spam.message@junk.org")
-
        ac1.stop_io()
        lp.sec("'Send out' the draft, i.e. move it to the Sent folder, and wait for DC to display it this time")
        ac1.direct_imap.select_folder("Drafts")
@@ -1517,35 +1413,6 @@ class TestOnlineAccount:
        assert msg2.text == "subj – message in Drafts that is moved to Sent later"
        assert len(msg.chat.get_messages()) == 2

-    def test_no_old_msg_is_fresh(self, acfactory, lp):
-        ac1 = acfactory.get_online_configuring_account()
-        ac2 = acfactory.get_online_configuring_account()
-        ac1_clone = acfactory.clone_online_account(ac1)
-        acfactory.wait_configure_and_start_io()
-
-        ac1.set_config("e2ee_enabled", "0")
-        ac1_clone.set_config("e2ee_enabled", "0")
-        ac2.set_config("e2ee_enabled", "0")
-
-        ac1_clone.set_config("bcc_self", "1")
-
-        ac1.create_chat(ac2)
-        ac1_clone.create_chat(ac2)
-
-        lp.sec("Send a first message from ac2 to ac1 and check that it's 'fresh'")
-        first_msg_id = ac2.create_chat(ac1).send_text("Hi")
-        ac1._evtracker.wait_next_incoming_message()
-        assert ac1.create_chat(ac2).count_fresh_messages() == 1
-        assert len(list(ac1.get_fresh_messages())) == 1
-
-        lp.sec("Send a message from ac1_clone to ac2 and check that ac1 marks the first message as 'noticed'")
-        ac1_clone.create_chat(ac2).send_text("Hi back")
-        ev = ac1._evtracker.get_matching("DC_EVENT_MSGS_NOTICED")
-
-        assert ev.data1 == first_msg_id.chat.id
-        assert ac1.create_chat(ac2).count_fresh_messages() == 0
-        assert len(list(ac1.get_fresh_messages())) == 0
-
    def test_prefer_encrypt(self, acfactory, lp):
        """Test quorum rule for encryption preference in 1:1 and group chat."""
        ac1, ac2, ac3 = acfactory.get_many_online_accounts(3)
@@ -1890,6 +1757,7 @@ class TestOnlineAccount:
        lp.sec("trigger ac setup message and return setupcode")
        assert ac1.get_info()["fingerprint"] != ac2.get_info()["fingerprint"]
        setup_code = ac1.initiate_key_transfer()
+        ac2._evtracker.set_timeout(30)
        ev = ac2._evtracker.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
        msg = ac2.get_message_by_id(ev.data2)
        assert msg.is_setup_message()
@@ -1906,6 +1774,7 @@ class TestOnlineAccount:
    def test_ac_setup_message_twice(self, acfactory, lp):
        ac1 = acfactory.get_online_configuring_account()
        ac2 = acfactory.clone_online_account(ac1)
+        ac2._evtracker.set_timeout(30)
        acfactory.wait_configure_and_start_io()

        lp.sec("trigger ac setup message but ignore")
@@ -2079,7 +1948,7 @@ class TestOnlineAccount:

        lp.sec("ac1: send a message to group chat to promote the group")
        chat.send_text("afterwards promoted")
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "chat-modified"
        assert chat.is_promoted()
        assert sorted(x.addr for x in chat.get_contacts()) == \
@@ -2089,29 +1958,29 @@ class TestOnlineAccount:
        # note that if the above create_chat() would not
        # happen we would not receive a proper member_added event
        contact2 = chat.add_contact("devnull@testrun.org")
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "chat-modified"
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "chat-modified"
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "added"
        assert ev.message.get_sender_contact().addr == ac1_addr
        assert ev.contact.addr == "devnull@testrun.org"

        lp.sec("ac1: remove address2")
        chat.remove_contact(contact2)
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "chat-modified"
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "removed"
        assert ev.contact.addr == contact2.addr
        assert ev.message.get_sender_contact().addr == ac1_addr

        lp.sec("ac1: remove ac2 contact from chat")
        chat.remove_contact(ac2)
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "chat-modified"
-        ev = in_list.get()
+        ev = in_list.get(timeout=10)
        assert ev.action == "removed"
        assert ev.message.get_sender_contact().addr == ac1_addr

@@ -2208,8 +2077,10 @@ class TestOnlineAccount:
        assert msg_back.chat == chat
        assert chat.get_profile_image() is None

-    def test_connectivity(self, acfactory, lp):
+    @pytest.mark.parametrize("inbox_watch", ["0", "1"])
+    def test_connectivity(self, acfactory, lp, inbox_watch):
        ac1, ac2 = acfactory.get_two_online_accounts()
+        ac1.set_config("inbox_watch", inbox_watch)
        ac1.set_config("scan_all_folders_debounce_secs", "0")

        ac1._evtracker.wait_for_connectivity(const.DC_CONNECTIVITY_CONNECTED)
@@ -2229,7 +2100,7 @@ class TestOnlineAccount:
        ac1.direct_imap.idle_start()
        ac2.create_chat(ac1).send_text("Hi")

-        ac1.direct_imap.idle_wait_for_new_message(terminate=True)
+        ac1.direct_imap.idle_check(terminate=False)
        ac1.maybe_network()

        ac1._evtracker.wait_for_all_work_done()
@@ -2241,6 +2112,8 @@ class TestOnlineAccount:

        ac2.create_chat(ac1).send_text("Hi 2")

+        ac1.direct_imap.idle_check(terminate=True)
+        ac1.maybe_network()
        ac1._evtracker.wait_for_connectivity_change(const.DC_CONNECTIVITY_CONNECTED, const.DC_CONNECTIVITY_WORKING)
        ac1._evtracker.wait_for_connectivity_change(const.DC_CONNECTIVITY_WORKING, const.DC_CONNECTIVITY_CONNECTED)

@@ -2264,7 +2137,7 @@ class TestOnlineAccount:
        ac1.direct_imap.idle_start()
        ac2.create_chat(ac1).send_text("Hi")

-        ac1.direct_imap.idle_wait_for_new_message(terminate=True)
+        ac1.direct_imap.idle_check(terminate=True)
        ac1.maybe_network()

        while 1:
@@ -2447,30 +2320,32 @@ class TestOnlineAccount:

    def test_immediate_autodelete(self, acfactory, lp):
        ac1 = acfactory.get_online_configuring_account()
-        ac2 = acfactory.get_online_configuring_account(move=False, sentbox=False)
+        ac2 = acfactory.get_online_configuring_account(mvbox=False, move=False, sentbox=False)

        # "1" means delete immediately, while "0" means do not delete
        ac2.set_config("delete_server_after", "1")

        acfactory.wait_configure_and_start_io()

+        imap2 = ac2.direct_imap
+        imap2.idle_start()
+
        lp.sec("ac1: create chat with ac2")
        chat1 = ac1.create_chat(ac2)
        ac2.create_chat(ac1)

-        lp.sec("ac1: send message to ac2")
        sent_msg = chat1.send_text("hello")
+        imap2.idle_check(terminate=False)

        msg = ac2._evtracker.wait_next_incoming_message()
        assert msg.text == "hello"

-        lp.sec("ac2: wait for close/expunge on autodelete")
+        imap2.idle_check(terminate=True)
        ac2._evtracker.get_info_contains("close/expunge succeeded")

-        lp.sec("ac2: check that message was autodeleted on server")
-        assert len(ac2.direct_imap.get_all_messages()) == 0
+        assert len(imap2.get_all_messages()) == 0

-        lp.sec("ac2: Mark deleted message as seen and check that read receipt arrives")
+        # Mark deleted message as seen and check that read receipt arrives
        msg.mark_seen()
        ev = ac1._evtracker.get_matching("DC_EVENT_MSG_READ")
        assert ev.data1 == chat1.id
@@ -2554,13 +2429,15 @@ class TestOnlineAccount:
        lp.sec("ac2: deleting all messages except third")
        assert len(to_delete) == len(texts) - 1
        ac2.delete_messages(to_delete)
-        ac2._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_DELETED")
+        for msg in to_delete:
+            ac2._evtracker.get_matching("DC_EVENT_IMAP_MESSAGE_DELETED")

        ac2._evtracker.get_info_contains("close/expunge succeeded")

-        lp.sec("ac2: test that only one message is left")
-        ac2.direct_imap.select_config_folder("inbox")
-        assert len(ac2.direct_imap.get_all_messages()) == 1
+        lp.sec("imap2: test that only one message is left")
+        imap2 = ac2.direct_imap
+
+        assert len(imap2.get_all_messages()) == 1

    def test_configure_error_msgs(self, acfactory):
        ac1, configdict = acfactory.get_online_config()
@@ -2704,33 +2581,38 @@ class TestOnlineAccount:
        assert received_reply.quoted_text == "hello"
        assert received_reply.quote.id == out_msg.id

-    @pytest.mark.parametrize("folder,move,expected_destination,", [
-        ("xyz", False, "xyz"),  # Test that emails are recognized in a random folder but not moved
-        ("xyz", True, "DeltaChat"),  # ...emails are found in a random folder and moved to DeltaChat
-        ("Spam", False, "INBOX"),  # ...emails are moved from the spam folder to the Inbox
+    @pytest.mark.parametrize("folder,move,expected_destination,inbox_watch,", [
+        ("xyz", False, "xyz", "1"),  # Test that emails are recognized in a random folder but not moved
+        ("xyz", True, "DeltaChat", "1"),  # ...emails are found in a random folder and moved to DeltaChat
+        ("Spam", False, "INBOX", "1"),  # ...emails are moved from the spam folder to the Inbox
+        ("INBOX", False, "INBOX", "0"),  # ...emails are found in the `Inbox` folder even if `inbox_watch` is "0"
    ])
    # Testrun.org does not support the CREATE-SPECIAL-USE capability, which means that we can't create a folder with
    # the "\Junk" flag (see https://tools.ietf.org/html/rfc6154). So, we can't test spam folder detection by flag.
-    def test_scan_folders(self, acfactory, lp, folder, move, expected_destination):
+    def test_scan_folders(self, acfactory, lp, folder, move, expected_destination, inbox_watch):
        """Delta Chat periodically scans all folders for new messages to make sure we don't miss any."""
        variant = folder + "-" + str(move) + "-" + expected_destination
        lp.sec("Testing variant " + variant)
        ac1 = acfactory.get_online_configuring_account(move=move)
        ac2 = acfactory.get_online_configuring_account()
+        ac1.set_config("inbox_watch", inbox_watch)

        acfactory.wait_configure(ac1)
        ac1.direct_imap.create_folder(folder)

        acfactory.wait_configure_and_start_io()
        # Wait until each folder was selected once and we are IDLEing:
-        ac1._evtracker.get_info_contains("INBOX: Idle entering wait-on-remote state")
+        if inbox_watch == "1":
+            ac1._evtracker.get_info_contains("INBOX: Idle entering wait-on-remote state")
+        else:
+            ac1._evtracker.get_info_contains("IMAP-fake-IDLE: no folder, waiting for interrupt")
        ac1.stop_io()

        # Send a message to ac1 and move it to the mvbox:
        ac1.direct_imap.select_config_folder("inbox")
        ac1.direct_imap.idle_start()
        acfactory.get_accepted_chat(ac2, ac1).send_text("hello")
-        ac1.direct_imap.idle_wait_for_new_message(terminate=True)
+        ac1.direct_imap.idle_check(terminate=True)
        ac1.direct_imap.conn.move(["*"], folder)  # "*" means "biggest UID in mailbox"

        lp.sec("Everything prepared, now see if DeltaChat finds the message (" + variant + ")")
@@ -2739,7 +2621,11 @@ class TestOnlineAccount:
        msg = ac1._evtracker.wait_next_incoming_message()
        assert msg.text == "hello"

-        # The message has been downloaded, which means it has reached its destination.
+        # Wait until the message was moved (if at all) and we are IDLEing again:
+        if inbox_watch == "1":
+            ac1._evtracker.get_info_contains("INBOX: Idle entering wait-on-remote state")
+        else:
+            ac1._evtracker.get_info_contains("IMAP-fake-IDLE: no folder, waiting for interrupt")
        ac1.direct_imap.select_folder(expected_destination)
        assert len(ac1.direct_imap.get_all_messages()) == 1
        if folder != expected_destination:
@@ -2762,7 +2648,8 @@ class TestOnlineAccount:
            if mvbox_move:
                assert ac.get_config("configured_mvbox_folder")

-        ac1 = acfactory.get_online_configuring_account(move=mvbox_move)
+        ac1 = acfactory.get_online_configuring_account(mvbox=mvbox_move, move=mvbox_move)
+        ac1.set_config("sentbox_move", "1")
        ac2 = acfactory.get_online_configuring_account()

        acfactory.wait_configure(ac1)
@@ -2779,7 +2666,10 @@ class TestOnlineAccount:
        acfactory.wait_configure_and_start_io()
        assert_folders_configured(ac1)

-        assert ac1.direct_imap.select_config_folder("mvbox" if mvbox_move else "inbox")
+        if mvbox_move:
+            ac1.direct_imap.select_config_folder("mvbox")
+        else:
+            ac1.direct_imap.select_config_folder("sentbox")
        ac1.direct_imap.idle_start()

        lp.sec("send out message with bcc to ourselves")
@@ -2788,24 +2678,22 @@ class TestOnlineAccount:
        chat.send_text("message text")
        assert_folders_configured(ac1)

-        lp.sec("wait until the bcc_self message arrives in correct folder and is marked seen")
+        # now wait until the bcc_self message arrives
+        # Also test that bcc_self messages moved to the mvbox are marked as read.
        assert ac1.direct_imap.idle_wait_for_seen()
        assert_folders_configured(ac1)

-        lp.sec("create a cloned ac1 and fetch contact history during configure")
        ac1_clone = acfactory.clone_online_account(ac1)
        ac1_clone.set_config("fetch_existing_msgs", "1")
        ac1_clone._configtracker.wait_finish()
        ac1_clone.start_io()
        assert_folders_configured(ac1_clone)

-        lp.sec("check that ac2 contact was fetchted during configure")
        ac1_clone._evtracker.get_matching("DC_EVENT_CONTACTS_CHANGED")
        ac2_addr = ac2.get_config("addr")
        assert any(c.addr == ac2_addr for c in ac1_clone.get_contacts())
        assert_folders_configured(ac1_clone)

-        lp.sec("check that messages changed events arrive for the correct message")
        msg = ac1_clone._evtracker.wait_next_messages_changed()
        assert msg.text == "message text"
        assert_folders_configured(ac1)
@@ -2860,19 +2748,19 @@ class TestOnlineAccount:

    def test_delete_deltachat_folder(self, acfactory):
        """Test that DeltaChat folder is recreated if user deletes it manually."""
-        ac1 = acfactory.get_online_configuring_account(move=True)
+        ac1 = acfactory.get_online_configuring_account(mvbox=True)
        ac2 = acfactory.get_online_configuring_account()
        acfactory.wait_configure(ac1)

-        ac1.direct_imap.conn.folder.delete("DeltaChat")
-        assert "DeltaChat" not in ac1.direct_imap.list_folders()
+        ac1.direct_imap.conn.delete_folder("DeltaChat")
+        assert len(ac1.direct_imap.conn.list_folders(pattern="DeltaChat")) == 0
        acfactory.wait_configure_and_start_io()

        ac2.create_chat(ac1).send_text("hello")
        msg = ac1._evtracker.wait_next_incoming_message()
        assert msg.text == "hello"

-        assert "DeltaChat" in ac1.direct_imap.list_folders()
+        assert len(ac1.direct_imap.conn.list_folders(pattern="DeltaChat")) == 1


 class TestGroupStressTests:
@@ -2988,8 +2876,7 @@ class TestGroupStressTests:
        lp.sec("ac2: check that ac3 is removed")
        msg = ac2._evtracker.wait_next_incoming_message()

-        assert chat.num_contacts() == 2
-        assert msg.chat.num_contacts() == 2
+        assert msg.chat.num_contacts() == chat.num_contacts()
        acfactory.dump_imap_summary(sys.stdout)


--- a/python/tests/test_lowlevel.py
+++ b/python/tests/test_lowlevel.py
@@ -36,8 +36,7 @@ def test_wrong_db(tmpdir):
    # write an invalid database file
    p.write("x123" * 10)

-    context = lib.dc_context_new(ffi.NULL, p.strpath.encode("ascii"), ffi.NULL)
-    assert not lib.dc_context_is_open(context)
+    assert ffi.NULL == lib.dc_context_new(ffi.NULL, p.strpath.encode("ascii"), ffi.NULL)


 def test_empty_blobdir(tmpdir):
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -8,7 +8,7 @@ envlist =

 [testenv]
 commands = 
-    pytest -n1 --reruns 2 --reruns-delay 5 -v -rsXx --ignored --strict-tls {posargs: tests examples}
+    pytest -n6 --reruns 2 --reruns-delay 5 -v -rsXx --ignored --strict-tls {posargs: tests examples}
    python tests/package_wheels.py {toxworkdir}/wheelhouse
 passenv = 
    TRAVIS 
@@ -78,8 +78,8 @@ commands =
 addopts = -v -ra --strict-markers
 norecursedirs = .tox 
 xfail_strict=true
-timeout = 150
-timeout_func_only = True
+timeout = 90
+timeout_method = thread
 markers = 
    ignored: ignore this test in default test runs, use --ignored to run.

--- a/2
+++ b/2
@@ -1 +1 @@
-1.60.0
+1.54.0
--- a/scripts/docker-coredeps-arm64/deps/build_rust.sh
+++ b/scripts/docker-coredeps-arm64/deps/build_rust.sh
@@ -8,7 +8,7 @@ set -e -x
 #
 # Avoid using rustup here as it depends on reading /proc/self/exe and
 # has problems running under QEMU.
-RUST_VERSION=1.60.0
+RUST_VERSION=1.54.0

 curl "https://static.rust-lang.org/dist/rust-${RUST_VERSION}-$(uname -m)-unknown-linux-gnu.tar.gz" | tar xz
 cd "rust-${RUST_VERSION}-$(uname -m)-unknown-linux-gnu"
--- a/scripts/docker-coredeps/deps/build_rust.sh
+++ b/scripts/docker-coredeps/deps/build_rust.sh
@@ -8,7 +8,7 @@ set -e -x
 #
 # Avoid using rustup here as it depends on reading /proc/self/exe and
 # has problems running under QEMU.
-RUST_VERSION=1.60.0
+RUST_VERSION=1.54.0

 curl "https://static.rust-lang.org/dist/rust-${RUST_VERSION}-$(uname -m)-unknown-linux-gnu.tar.gz" | tar xz
 cd "rust-${RUST_VERSION}-$(uname -m)-unknown-linux-gnu"
--- a/src/accounts.rs
+++ b/src/accounts.rs
@@ -29,21 +29,21 @@ pub struct Accounts {

 impl Accounts {
    /// Loads or creates an accounts folder at the given `dir`.
-    pub async fn new(dir: PathBuf) -> Result<Self> {
+    pub async fn new(os_name: String, dir: PathBuf) -> Result<Self> {
        if !dir.exists().await {
-            Accounts::create(&dir).await?;
+            Accounts::create(os_name, &dir).await?;
        }

        Accounts::open(dir).await
    }

    /// Creates a new default structure.
-    pub async fn create(dir: &PathBuf) -> Result<()> {
+    pub async fn create(os_name: String, dir: &PathBuf) -> Result<()> {
        fs::create_dir_all(dir)
            .await
            .context("failed to create folder")?;

-        Config::new(dir).await?;
+        Config::new(os_name.clone(), dir).await?;

        Ok(())
    }
@@ -54,19 +54,10 @@ impl Accounts {
        ensure!(dir.exists().await, "directory does not exist");

        let config_file = dir.join(CONFIG_NAME);
-        ensure!(
-            config_file.exists().await,
-            "{:?} does not exist",
-            config_file
-        );
+        ensure!(config_file.exists().await, "accounts.toml does not exist");

-        let config = Config::from_file(config_file)
-            .await
-            .context("failed to load accounts config")?;
-        let accounts = config
-            .load_accounts()
-            .await
-            .context("failed to load accounts")?;
+        let config = Config::from_file(config_file).await?;
+        let accounts = config.load_accounts().await?;

        let emitter = EventEmitter::new();

@@ -75,9 +66,7 @@ impl Accounts {
        emitter.sender.send(events.get_emitter()).await?;

        for account in accounts.values() {
-            emitter.add_account(account).await.with_context(|| {
-                format!("failed to add account {} to event emitter", account.id)
-            })?;
+            emitter.add_account(account).await?;
        }

        Ok(Self {
@@ -115,24 +104,12 @@ impl Accounts {
        Ok(())
    }

-    /// Add a new account and opens it.
-    ///
-    /// Returns account ID.
+    /// Add a new account.
    pub async fn add_account(&mut self) -> Result<u32> {
+        let os_name = self.config.os_name().await;
        let account_config = self.config.new_account(&self.dir).await?;

-        let ctx = Context::new(account_config.dbfile().into(), account_config.id).await?;
-        self.emitter.add_account(&ctx).await?;
-        self.accounts.insert(account_config.id, ctx);
-
-        Ok(account_config.id)
-    }
-
-    /// Adds a new closed account.
-    pub async fn add_closed_account(&mut self) -> Result<u32> {
-        let account_config = self.config.new_account(&self.dir).await?;
-
-        let ctx = Context::new_closed(account_config.dbfile().into(), account_config.id).await?;
+        let ctx = Context::new(os_name, account_config.dbfile().into(), account_config.id).await?;
        self.emitter.add_account(&ctx).await?;
        self.accounts.insert(account_config.id, ctx);

@@ -148,27 +125,9 @@ impl Accounts {
        drop(ctx);

        if let Some(cfg) = self.config.get_account(id).await {
-            // Spend up to 1 minute trying to remove the files.
-            // Files may remain locked up to 30 seconds due to r2d2 bug:
-            // https://github.com/sfackler/r2d2/issues/99
-            let mut counter = 0;
-            loop {
-                counter += 1;
-
-                if let Err(err) = fs::remove_dir_all(async_std::path::PathBuf::from(&cfg.dir))
-                    .await
-                    .context("failed to remove account data")
-                {
-                    if counter > 60 {
-                        return Err(err);
-                    }
-
-                    // Wait 1 second and try again.
-                    async_std::task::sleep(std::time::Duration::from_millis(1000)).await;
-                } else {
-                    break;
-                }
-            }
+            fs::remove_dir_all(async_std::path::PathBuf::from(&cfg.dir))
+                .await
+                .context("failed to remove account data")?;
        }
        self.config.remove_account(id).await?;

@@ -224,7 +183,13 @@ impl Accounts {

        match res {
            Ok(_) => {
-                let ctx = Context::new(new_dbfile, account_config.id).await?;
+                let ctx = Context::with_blobdir(
+                    self.config.os_name().await,
+                    new_dbfile,
+                    new_blobdir,
+                    account_config.id,
+                )
+                .await?;
                self.emitter.add_account(&ctx).await?;
                self.accounts.insert(account_config.id, ctx);
                Ok(account_config.id)
@@ -384,6 +349,7 @@ pub struct Config {
 /// This is serialized into TOML.
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
 struct InnerConfig {
+    pub os_name: String,
    /// The currently selected account.
    pub selected_account: u32,
    pub next_id: u32,
@@ -391,8 +357,9 @@ struct InnerConfig {
 }

 impl Config {
-    pub async fn new(dir: &PathBuf) -> Result<Self> {
+    pub async fn new(os_name: String, dir: &PathBuf) -> Result<Self> {
        let inner = InnerConfig {
+            os_name,
            accounts: Vec::new(),
            selected_account: 0,
            next_id: 1,
@@ -407,6 +374,10 @@ impl Config {
        Ok(cfg)
    }

+    pub async fn os_name(&self) -> String {
+        self.inner.os_name.clone()
+    }
+
    /// Sync the inmemory representation to disk.
    async fn sync(&self) -> Result<()> {
        fs::write(&self.file, toml::to_string_pretty(&self.inner)?)
@@ -425,15 +396,12 @@ impl Config {
    pub async fn load_accounts(&self) -> Result<BTreeMap<u32, Context>> {
        let mut accounts = BTreeMap::new();
        for account_config in &self.inner.accounts {
-            let ctx = Context::new(account_config.dbfile().into(), account_config.id)
-                .await
-                .with_context(|| {
-                    format!(
-                        "failed to create context from file {:?}",
-                        account_config.dbfile()
-                    )
-                })?;
-
+            let ctx = Context::new(
+                self.inner.os_name.clone(),
+                account_config.dbfile().into(),
+                account_config.id,
+            )
+            .await?;
            accounts.insert(account_config.id, ctx);
        }

@@ -458,13 +426,8 @@ impl Config {

        self.sync().await?;

-        self.select_account(id)
-            .await
-            .context("failed to select just added account")?;
-        let cfg = self
-            .get_account(id)
-            .await
-            .context("failed to get just added account")?;
+        self.select_account(id).await.expect("just added");
+        let cfg = self.get_account(id).await.expect("just added");
        Ok(cfg)
    }

@@ -535,7 +498,7 @@ mod tests {
        let dir = tempfile::tempdir().unwrap();
        let p: PathBuf = dir.path().join("accounts1").into();

-        let mut accounts1 = Accounts::new(p.clone()).await.unwrap();
+        let mut accounts1 = Accounts::new("my_os".into(), p.clone()).await.unwrap();
        accounts1.add_account().await.unwrap();

        let accounts2 = Accounts::open(p).await.unwrap();
@@ -553,7 +516,7 @@ mod tests {
        let dir = tempfile::tempdir().unwrap();
        let p: PathBuf = dir.path().join("accounts").into();

-        let mut accounts = Accounts::new(p.clone()).await.unwrap();
+        let mut accounts = Accounts::new("my_os".into(), p.clone()).await.unwrap();
        assert_eq!(accounts.accounts.len(), 0);
        assert_eq!(accounts.config.get_selected_account().await, 0);

@@ -580,7 +543,7 @@ mod tests {
        let dir = tempfile::tempdir()?;
        let p: PathBuf = dir.path().join("accounts").into();

-        let mut accounts = Accounts::new(p.clone()).await?;
+        let mut accounts = Accounts::new("my_os".into(), p.clone()).await?;
        assert!(accounts.get_selected_account().await.is_none());
        assert_eq!(accounts.config.get_selected_account().await, 0);

@@ -601,12 +564,14 @@ mod tests {
        let dir = tempfile::tempdir().unwrap();
        let p: PathBuf = dir.path().join("accounts").into();

-        let mut accounts = Accounts::new(p.clone()).await.unwrap();
+        let mut accounts = Accounts::new("my_os".into(), p.clone()).await.unwrap();
        assert_eq!(accounts.accounts.len(), 0);
        assert_eq!(accounts.config.get_selected_account().await, 0);

        let extern_dbfile: PathBuf = dir.path().join("other").into();
-        let ctx = Context::new(extern_dbfile.clone(), 0).await.unwrap();
+        let ctx = Context::new("my_os".into(), extern_dbfile.clone(), 0)
+            .await
+            .unwrap();
        ctx.set_config(crate::config::Config::Addr, Some("me@mail.com"))
            .await
            .unwrap();
@@ -636,7 +601,7 @@ mod tests {
        let dir = tempfile::tempdir().unwrap();
        let p: PathBuf = dir.path().join("accounts").into();

-        let mut accounts = Accounts::new(p.clone()).await.unwrap();
+        let mut accounts = Accounts::new("my_os".into(), p.clone()).await.unwrap();

        for expected_id in 1..10 {
            let id = accounts.add_account().await.unwrap();
@@ -656,7 +621,7 @@ mod tests {
        let dummy_accounts = 10;

        let (id0, id1, id2) = {
-            let mut accounts = Accounts::new(p.clone()).await?;
+            let mut accounts = Accounts::new("my_os".into(), p.clone()).await?;
            accounts.add_account().await?;
            let ids = accounts.get_all().await;
            assert_eq!(ids.len(), 1);
@@ -691,7 +656,7 @@ mod tests {
        assert!(id2 > id1 + dummy_accounts);

        let (id0_reopened, id1_reopened, id2_reopened) = {
-            let accounts = Accounts::new(p.clone()).await?;
+            let accounts = Accounts::new("my_os".into(), p.clone()).await?;
            let ctx = accounts.get_selected_account().await.unwrap();
            assert_eq!(
                ctx.get_config(crate::config::Config::Addr).await?,
@@ -736,7 +701,7 @@ mod tests {
        let dir = tempfile::tempdir().unwrap();
        let p: PathBuf = dir.path().join("accounts").into();

-        let accounts = Accounts::new(p.clone()).await?;
+        let accounts = Accounts::new("my_os".into(), p.clone()).await?;

        // Make sure there are no accounts.
        assert_eq!(accounts.accounts.len(), 0);
@@ -756,49 +721,4 @@ mod tests {

        Ok(())
    }
-
-    #[async_std::test]
-    async fn test_encrypted_account() -> Result<()> {
-        let dir = tempfile::tempdir().context("failed to create tempdir")?;
-        let p: PathBuf = dir.path().join("accounts").into();
-
-        let mut accounts = Accounts::new(p.clone())
-            .await
-            .context("failed to create accounts manager")?;
-
-        assert_eq!(accounts.accounts.len(), 0);
-        let account_id = accounts
-            .add_closed_account()
-            .await
-            .context("failed to add closed account")?;
-        let account = accounts
-            .get_selected_account()
-            .await
-            .context("failed to get account")?;
-        assert_eq!(account.id, account_id);
-        let passphrase_set_success = account
-            .open("foobar".to_string())
-            .await
-            .context("failed to set passphrase")?;
-        assert!(passphrase_set_success);
-        drop(accounts);
-
-        let accounts = Accounts::new(p.clone())
-            .await
-            .context("failed to create second accounts manager")?;
-        let account = accounts
-            .get_selected_account()
-            .await
-            .context("failed to get account")?;
-        assert_eq!(account.is_open().await, false);
-
-        // Try wrong passphrase.
-        assert_eq!(account.open("barfoo".to_string()).await?, false);
-        assert_eq!(account.open("".to_string()).await?, false);
-
-        assert_eq!(account.open("foobar".to_string()).await?, true);
-        assert_eq!(account.is_open().await, true);
-
-        Ok(())
-    }
 }
--- a/src/aheader.rs
+++ b/src/aheader.rs
@@ -2,7 +2,7 @@
 //!
 //! Parse and create [Autocrypt-headers](https://autocrypt.org/en/latest/level1.html#the-autocrypt-header).

-use anyhow::{bail, Context as _, Error, Result};
+use anyhow::{bail, format_err, Error, Result};
 use std::collections::BTreeMap;
 use std::str::FromStr;
 use std::{fmt, str};
@@ -139,14 +139,15 @@ impl str::FromStr for Aheader {
        };
        let public_key: SignedPublicKey = attributes
            .remove("keydata")
-            .context("keydata attribute is not found")
+            .ok_or_else(|| format_err!("keydata attribute is not found"))
            .and_then(|raw| {
-                SignedPublicKey::from_base64(&raw).context("autocrypt key cannot be decoded")
+                SignedPublicKey::from_base64(&raw)
+                    .map_err(|_| format_err!("Autocrypt key cannot be decoded"))
            })
            .and_then(|key| {
                key.verify()
                    .and(Ok(key))
-                    .context("autocrypt key cannot be verified")
+                    .map_err(|_| format_err!("Autocrypt key cannot be verified"))
            })?;

        let prefer_encrypt = attributes
--- a/src/blob.rs
+++ b/src/blob.rs
@@ -3,26 +3,28 @@
 use core::cmp::max;
 use std::ffi::OsStr;
 use std::fmt;
-use std::io::Cursor;

 use async_std::path::{Path, PathBuf};
 use async_std::prelude::*;
 use async_std::{fs, io};

-use anyhow::{format_err, Context as _, Error};
-use image::{DynamicImage, ImageFormat};
+use anyhow::format_err;
+use anyhow::Context as _;
+use anyhow::Error;
+use image::DynamicImage;
+use image::GenericImageView;
+use image::ImageFormat;
 use num_traits::FromPrimitive;
 use thiserror::Error;

 use crate::config::Config;
 use crate::constants::{
-    MediaQuality, BALANCED_AVATAR_SIZE, BALANCED_IMAGE_SIZE, WORSE_AVATAR_SIZE, WORSE_IMAGE_SIZE,
+    MediaQuality, Viewtype, BALANCED_AVATAR_SIZE, BALANCED_IMAGE_SIZE, WORSE_AVATAR_SIZE,
+    WORSE_IMAGE_SIZE,
 };
 use crate::context::Context;
 use crate::events::EventType;
-use crate::log::LogExt;
 use crate::message;
-use crate::message::Viewtype;

 /// Represents a file in the blob directory.
 ///
@@ -61,7 +63,7 @@ impl<'a> BlobObject<'a> {
    ) -> std::result::Result<BlobObject<'a>, BlobError> {
        let blobdir = context.get_blobdir();
        let (stem, ext) = BlobObject::sanitise_name(suggested_name);
-        let (name, mut file) = BlobObject::create_new_file(context, blobdir, &stem, &ext).await?;
+        let (name, mut file) = BlobObject::create_new_file(blobdir, &stem, &ext).await?;
        file.write_all(data)
            .await
            .map_err(|err| BlobError::WriteFailure {
@@ -85,16 +87,13 @@ impl<'a> BlobObject<'a> {

    // Creates a new file, returning a tuple of the name and the handle.
    async fn create_new_file(
-        context: &Context,
        dir: &Path,
        stem: &str,
        ext: &str,
    ) -> Result<(String, fs::File), BlobError> {
-        const MAX_ATTEMPT: u32 = 16;
-        let mut attempt = 0;
+        let max_attempt = 15;
        let mut name = format!("{}{}", stem, ext);
-        loop {
-            attempt += 1;
+        for attempt in 0..max_attempt {
            let path = dir.join(&name);
            match fs::OpenOptions::new()
                .create_new(true)
@@ -104,20 +103,24 @@ impl<'a> BlobObject<'a> {
            {
                Ok(file) => return Ok((name, file)),
                Err(err) => {
-                    if attempt >= MAX_ATTEMPT {
+                    if attempt == max_attempt {
                        return Err(BlobError::CreateFailure {
                            blobdir: dir.to_path_buf(),
                            blobname: name,
                            cause: err,
                        });
-                    } else if attempt == 1 && !dir.exists().await {
-                        fs::create_dir_all(dir).await.ok_or_log(context);
                    } else {
                        name = format!("{}-{}{}", stem, rand::random::<u32>(), ext);
                    }
                }
            }
        }
+        // This is supposed to be unreachable, but the compiler doesn't know.
+        Err(BlobError::CreateFailure {
+            blobdir: dir.to_path_buf(),
+            blobname: name,
+            cause: std::io::Error::new(std::io::ErrorKind::Other, "supposedly unreachable"),
+        })
    }

    /// Creates a new blob object with unique name by copying an existing file.
@@ -146,7 +149,7 @@ impl<'a> BlobObject<'a> {
            })?;
        let (stem, ext) = BlobObject::sanitise_name(&src.to_string_lossy());
        let (name, mut dst_file) =
-            BlobObject::create_new_file(context, context.get_blobdir(), &stem, &ext).await?;
+            BlobObject::create_new_file(context.get_blobdir(), &stem, &ext).await?;
        let name_for_err = name.clone();
        if let Err(err) = io::copy(&mut src_file, &mut dst_file).await {
            {
@@ -289,7 +292,7 @@ impl<'a> BlobObject<'a> {

    /// Returns the filename of the blob.
    pub fn as_file_name(&self) -> &str {
-        self.name.rsplit('/').next().unwrap()
+        self.name.rsplitn(2, '/').next().unwrap()
    }

    /// The path relative in the blob directory.
@@ -302,7 +305,7 @@ impl<'a> BlobObject<'a> {
    /// If a blob's filename has an extension, it is always guaranteed
    /// to be lowercase.
    pub fn suffix(&self) -> Option<&str> {
-        let ext = self.name.rsplit('.').next();
+        let ext = self.name.rsplitn(2, '.').next();
        if ext == Some(&self.name) {
            None
        } else {
@@ -345,30 +348,13 @@ impl<'a> BlobObject<'a> {
        };

        let clean = sanitize_filename::sanitize_with_options(name, opts);
-        // Let's take the tricky filename
-        // "file.with_lots_of_characters_behind_point_and_double_ending.tar.gz" as an example.
-        // Split it into "file" and "with_lots_of_characters_behind_point_and_double_ending.tar.gz":
        let mut iter = clean.splitn(2, '.');
-
        let stem: String = iter.next().unwrap_or_default().chars().take(64).collect();
-        // stem == "file"
-
-        let ext_chars = iter.next().unwrap_or_default().chars();
-        let ext: String = ext_chars
-            .rev()
-            .take(32)
-            .collect::<Vec<_>>()
-            .iter()
-            .rev()
-            .collect();
-        // ext == "d_point_and_double_ending.tar.gz"
-
+        let ext: String = iter.next().unwrap_or_default().chars().take(32).collect();
        if ext.is_empty() {
            (stem, "".to_string())
        } else {
            (stem, format!(".{}", ext).to_lowercase())
-            // Return ("file", ".d_point_and_double_ending.tar.gz")
-            // which is not perfect but acceptable.
        }
    }

@@ -463,8 +449,7 @@ impl<'a> BlobObject<'a> {

        fn encode_img(img: &DynamicImage, encoded: &mut Vec<u8>) -> anyhow::Result<()> {
            encoded.clear();
-            let mut buf = Cursor::new(encoded);
-            img.write_to(&mut buf, image::ImageFormat::Jpeg)?;
+            img.write_to(encoded, image::ImageFormat::Jpeg)?;
            Ok(())
        }
        fn encoded_img_exceeds_bytes(
@@ -634,15 +619,14 @@ pub enum BlobError {
 mod tests {
    use fs::File;

-    use anyhow::Result;
-    use image::{GenericImageView, Pixel};
-
-    use crate::chat::{self, create_group_chat, ProtectionStatus};
-    use crate::message::Message;
-    use crate::test_utils::{self, TestContext};
-
    use super::*;

+    use crate::{
+        message::Message,
+        test_utils::{self, TestContext},
+    };
+    use image::Pixel;
+
    #[async_std::test]
    async fn test_create() {
        let t = TestContext::new().await;
@@ -940,7 +924,7 @@ mod tests {
    }

    #[async_std::test]
-    async fn test_recode_image_1() {
+    async fn test_recode_image() {
        let bytes = include_bytes!("../test-data/image/avatar1000x1000.jpg");
        // BALANCED_IMAGE_SIZE > 1000, the original image size, so the image is not scaled down:
        send_image_check_mediaquality(Some("0"), bytes, 1000, 1000, 0, 1000, 1000)
@@ -957,10 +941,7 @@ mod tests {
        )
        .await
        .unwrap();
-    }

-    #[async_std::test]
-    async fn test_recode_image_2() {
        // The "-rotated" files are rotated by 270 degrees using the Exif metadata
        let bytes = include_bytes!("../test-data/image/rectangle2000x1800-rotated.jpg");
        let img_rotated = send_image_check_mediaquality(
@@ -976,29 +957,22 @@ mod tests {
        .unwrap();
        assert_correct_rotation(&img_rotated);

-        let mut buf = Cursor::new(vec![]);
+        let mut bytes = vec![];
        img_rotated
-            .write_to(&mut buf, image::ImageFormat::Jpeg)
+            .write_to(&mut bytes, image::ImageFormat::Jpeg)
            .unwrap();
-        let bytes = buf.into_inner();
-
-        // Do this in parallel to speed up the test a bit
-        // (it still takes very long though)
-        let bytes2 = bytes.clone();
-        let join_handle = async_std::task::spawn(async move {
-            let img_rotated = send_image_check_mediaquality(
-                Some("0"),
-                &bytes2,
-                BALANCED_IMAGE_SIZE * 1800 / 2000,
-                BALANCED_IMAGE_SIZE,
-                0,
-                BALANCED_IMAGE_SIZE * 1800 / 2000,
-                BALANCED_IMAGE_SIZE,
-            )
-            .await
-            .unwrap();
-            assert_correct_rotation(&img_rotated);
-        });
+        let img_rotated = send_image_check_mediaquality(
+            Some("0"),
+            &bytes,
+            BALANCED_IMAGE_SIZE * 1800 / 2000,
+            BALANCED_IMAGE_SIZE,
+            0,
+            BALANCED_IMAGE_SIZE * 1800 / 2000,
+            BALANCED_IMAGE_SIZE,
+        )
+        .await
+        .unwrap();
+        assert_correct_rotation(&img_rotated);

        let img_rotated = send_image_check_mediaquality(
            Some("1"),
@@ -1013,11 +987,6 @@ mod tests {
        .unwrap();
        assert_correct_rotation(&img_rotated);

-        join_handle.await;
-    }
-
-    #[async_std::test]
-    async fn test_recode_image_3() {
        let bytes = include_bytes!("../test-data/image/rectangle200x180-rotated.jpg");
        let img_rotated = send_image_check_mediaquality(Some("0"), bytes, 200, 180, 270, 180, 200)
            .await
@@ -1097,38 +1066,4 @@ mod tests {
        assert_eq!(img.height() as u32, compressed_height);
        Ok(img)
    }
-
-    #[async_std::test]
-    async fn test_increation_in_blobdir() -> Result<()> {
-        let t = TestContext::new_alice().await;
-        let chat_id = create_group_chat(&t, ProtectionStatus::Unprotected, "abc").await?;
-
-        let file = t.get_blobdir().join("anyfile.dat");
-        File::create(&file).await?.write_all("bla".as_ref()).await?;
-        let mut msg = Message::new(Viewtype::File);
-        msg.set_file(file.to_str().unwrap(), None);
-        let prepared_id = chat::prepare_msg(&t, chat_id, &mut msg).await?;
-        assert_eq!(prepared_id, msg.id);
-        assert!(msg.is_increation());
-
-        let msg = Message::load_from_db(&t, prepared_id).await?;
-        assert!(msg.is_increation());
-
-        Ok(())
-    }
-
-    #[async_std::test]
-    async fn test_increation_not_blobdir() -> Result<()> {
-        let t = TestContext::new_alice().await;
-        let chat_id = create_group_chat(&t, ProtectionStatus::Unprotected, "abc").await?;
-        assert_ne!(t.get_blobdir().to_str(), t.dir.path().to_str());
-
-        let file = t.dir.path().join("anyfile.dat");
-        File::create(&file).await?.write_all("bla".as_ref()).await?;
-        let mut msg = Message::new(Viewtype::File);
-        msg.set_file(file.to_str().unwrap(), None);
-        assert!(chat::prepare_msg(&t, chat_id, &mut msg).await.is_err());
-
-        Ok(())
-    }
 }
--- a/src/chat.rs
+++ b/src/chat.rs
--- a/src/chatlist.rs
+++ b/src/chatlist.rs
@@ -1,14 +1,16 @@
 //! # Chat list module.

-use anyhow::{ensure, Context as _, Result};
+use anyhow::{bail, ensure, Result};

 use crate::chat::{update_special_chat_names, Chat, ChatId, ChatVisibility};
 use crate::constants::{
-    Blocked, Chattype, DC_CHAT_ID_ALLDONE_HINT, DC_CHAT_ID_ARCHIVED_LINK, DC_GCL_ADD_ALLDONE_HINT,
-    DC_GCL_ARCHIVED_ONLY, DC_GCL_FOR_FORWARDING, DC_GCL_NO_SPECIALS,
+    Blocked, Chattype, DC_CHAT_ID_ALLDONE_HINT, DC_CHAT_ID_ARCHIVED_LINK, DC_CONTACT_ID_DEVICE,
+    DC_CONTACT_ID_SELF, DC_CONTACT_ID_UNDEFINED, DC_GCL_ADD_ALLDONE_HINT, DC_GCL_ARCHIVED_ONLY,
+    DC_GCL_FOR_FORWARDING, DC_GCL_NO_SPECIALS,
 };
-use crate::contact::{Contact, ContactId};
+use crate::contact::Contact;
 use crate::context::Context;
+use crate::ephemeral::delete_expired_messages;
 use crate::message::{Message, MessageState, MsgId};
 use crate::stock_str;
 use crate::summary::Summary;
@@ -83,13 +85,19 @@ impl Chatlist {
        context: &Context,
        listflags: usize,
        query: Option<&str>,
-        query_contact_id: Option<ContactId>,
+        query_contact_id: Option<u32>,
    ) -> Result<Self> {
        let flag_archived_only = 0 != listflags & DC_GCL_ARCHIVED_ONLY;
        let flag_for_forwarding = 0 != listflags & DC_GCL_FOR_FORWARDING;
        let flag_no_specials = 0 != listflags & DC_GCL_NO_SPECIALS;
        let flag_add_alldone_hint = 0 != listflags & DC_GCL_ADD_ALLDONE_HINT;

+        // Note that we do not emit DC_EVENT_MSGS_MODIFIED here even if some
+        // messages get deleted to avoid reloading the same chatlist.
+        if let Err(err) = delete_expired_messages(context).await {
+            warn!(context, "Failed to hide expired messages: {}", err);
+        }
+
        let mut add_archived_link_item = false;

        let process_row = |row: &rusqlite::Row| {
@@ -104,7 +112,7 @@ impl Chatlist {
        };

        let skip_id = if flag_for_forwarding {
-            ChatId::lookup_by_contact(context, ContactId::DEVICE)
+            ChatId::lookup_by_contact(context, DC_CONTACT_ID_DEVICE)
                .await?
                .unwrap_or_default()
        } else {
@@ -139,7 +147,7 @@ impl Chatlist {
                   AND c.id IN(SELECT chat_id FROM chats_contacts WHERE contact_id=?2)
                 GROUP BY c.id
                 ORDER BY c.archived=?3 DESC, IFNULL(m.timestamp,c.created_timestamp) DESC, m.id DESC;",
-                paramsv![MessageState::OutDraft, query_contact_id, ChatVisibility::Pinned],
+                paramsv![MessageState::OutDraft, query_contact_id as i32, ChatVisibility::Pinned],
                process_row,
                process_rows,
            ).await?
@@ -208,7 +216,7 @@ impl Chatlist {
        } else {
            //  show normal chatlist
            let sort_id_up = if flag_for_forwarding {
-                ChatId::lookup_by_contact(context, ContactId::SELF)
+                ChatId::lookup_by_contact(context, DC_CONTACT_ID_SELF)
                    .await?
                    .unwrap_or_default()
            } else {
@@ -263,23 +271,21 @@ impl Chatlist {
    /// Get a single chat ID of a chatlist.
    ///
    /// To get the message object from the message ID, use dc_get_chat().
-    pub fn get_chat_id(&self, index: usize) -> Result<ChatId> {
-        let (chat_id, _msg_id) = self
-            .ids
-            .get(index)
-            .context("chatlist index is out of range")?;
-        Ok(*chat_id)
+    pub fn get_chat_id(&self, index: usize) -> ChatId {
+        match self.ids.get(index) {
+            Some((chat_id, _msg_id)) => *chat_id,
+            None => ChatId::new(0),
+        }
    }

    /// Get a single message ID of a chatlist.
    ///
    /// To get the message object from the message ID, use dc_get_msg().
    pub fn get_msg_id(&self, index: usize) -> Result<Option<MsgId>> {
-        let (_chat_id, msg_id) = self
-            .ids
-            .get(index)
-            .context("chatlist index is out of range")?;
-        Ok(*msg_id)
+        match self.ids.get(index) {
+            Some((_chat_id, msg_id)) => Ok(*msg_id),
+            None => bail!("Chatlist index out of range"),
+        }
    }

    /// Returns a summary for a given chatlist index.
@@ -293,10 +299,11 @@ impl Chatlist {
        // This is because we may want to display drafts here or stuff as
        // "is typing".
        // Also, sth. as "No messages" would not work if the summary comes from a message.
-        let (chat_id, lastmsg_id) = self
-            .ids
-            .get(index)
-            .context("chatlist index is out of range")?;
+        let (chat_id, lastmsg_id) = match self.ids.get(index) {
+            Some(ids) => ids,
+            None => bail!("Chatlist index out of range"),
+        };
+
        Chatlist::get_summary2(context, *chat_id, *lastmsg_id, chat).await
    }

@@ -318,7 +325,7 @@ impl Chatlist {

        let (lastmsg, lastcontact) = if let Some(lastmsg_id) = lastmsg_id {
            let lastmsg = Message::load_from_db(context, lastmsg_id).await?;
-            if lastmsg.from_id == ContactId::SELF {
+            if lastmsg.from_id == DC_CONTACT_ID_SELF {
                (Some(lastmsg), None)
            } else {
                match chat.typ {
@@ -335,7 +342,7 @@ impl Chatlist {

        if chat.id.is_archived_link() {
            Ok(Default::default())
-        } else if let Some(lastmsg) = lastmsg.filter(|msg| msg.from_id != ContactId::UNDEFINED) {
+        } else if let Some(lastmsg) = lastmsg.filter(|msg| msg.from_id != DC_CONTACT_ID_UNDEFINED) {
            Ok(Summary::new(context, &lastmsg, chat, lastcontact.as_ref()).await)
        } else {
            Ok(Summary {
@@ -348,10 +355,6 @@ impl Chatlist {
    pub fn get_index_for_id(&self, id: ChatId) -> Option<usize> {
        self.ids.iter().position(|(chat_id, _)| chat_id == &id)
    }
-
-    pub fn iter(&self) -> impl Iterator<Item = &(ChatId, Option<MsgId>)> {
-        self.ids.iter()
-    }
 }

 /// Returns the number of archived chats
@@ -371,8 +374,8 @@ mod tests {
    use super::*;

    use crate::chat::{create_group_chat, get_chat_contacts, ProtectionStatus};
+    use crate::constants::Viewtype;
    use crate::dc_receive_imf::dc_receive_imf;
-    use crate::message::Viewtype;
    use crate::stock_str::StockMessage;
    use crate::test_utils::TestContext;

@@ -392,9 +395,9 @@ mod tests {
        // check that the chatlist starts with the most recent message
        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert_eq!(chats.len(), 3);
-        assert_eq!(chats.get_chat_id(0).unwrap(), chat_id3);
-        assert_eq!(chats.get_chat_id(1).unwrap(), chat_id2);
-        assert_eq!(chats.get_chat_id(2).unwrap(), chat_id1);
+        assert_eq!(chats.get_chat_id(0), chat_id3);
+        assert_eq!(chats.get_chat_id(1), chat_id2);
+        assert_eq!(chats.get_chat_id(2), chat_id1);

        // New drafts are sorted to the top
        // We have to set a draft on the other two messages, too, as
@@ -411,7 +414,7 @@ mod tests {
        }

        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
-        assert_eq!(chats.get_chat_id(0).unwrap(), chat_id2);
+        assert_eq!(chats.get_chat_id(0), chat_id2);

        // check chatlist query and archive functionality
        let chats = Chatlist::try_load(&t, 0, Some("b"), None).await.unwrap();
@@ -442,7 +445,7 @@ mod tests {

        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert!(chats.len() == 3);
-        assert!(!Chat::load_from_db(&t, chats.get_chat_id(0).unwrap())
+        assert!(!Chat::load_from_db(&t, chats.get_chat_id(0))
            .await
            .unwrap()
            .is_self_talk());
@@ -451,7 +454,7 @@ mod tests {
            .await
            .unwrap();
        assert!(chats.len() == 2); // device chat cannot be written and is skipped on forwarding
-        assert!(Chat::load_from_db(&t, chats.get_chat_id(0).unwrap())
+        assert!(Chat::load_from_db(&t, chats.get_chat_id(0))
            .await
            .unwrap()
            .is_self_talk());
@@ -496,13 +499,15 @@ mod tests {
        dc_receive_imf(
            &t,
            b"From: Bob Authname <bob@example.org>\n\
-                 To: alice@example.org\n\
+                 To: alice@example.com\n\
                 Subject: foo\n\
                 Message-ID: <msg1234@example.org>\n\
                 Chat-Version: 1.0\n\
                 Date: Sun, 22 Mar 2021 22:37:57 +0000\n\
                 \n\
                 hello foo\n",
+            "INBOX",
+            1,
            false,
        )
        .await?;
@@ -523,7 +528,7 @@ mod tests {
        // check, the one-to-one-chat can be found using chatlist search query
        let chats = Chatlist::try_load(&t, 0, Some("bob authname"), None).await?;
        assert_eq!(chats.len(), 1);
-        assert_eq!(chats.get_chat_id(0).unwrap(), chat_id);
+        assert_eq!(chats.get_chat_id(0), chat_id);

        // change the name of the contact; this also changes the name of the one-to-one-chat
        let test_id = Contact::create(&t, "Bob Nickname", "bob@example.org").await?;
@@ -556,13 +561,15 @@ mod tests {
        dc_receive_imf(
            &t,
            b"From: bob@example.org\n\
-                 To: alice@example.org\n\
+                 To: alice@example.com\n\
                 Subject: foo\n\
                 Message-ID: <msg5678@example.org>\n\
                 Chat-Version: 1.0\n\
                 Date: Sun, 22 Mar 2021 22:38:57 +0000\n\
                 \n\
                 hello foo\n",
+            "INBOX",
+            1,
            false,
        )
        .await?;
@@ -578,7 +585,7 @@ mod tests {
        // check, the one-to-one-chat can be found using chatlist search query
        let chats = Chatlist::try_load(&t, 0, Some("bob@example.org"), None).await?;
        assert_eq!(chats.len(), 1);
-        assert_eq!(chats.get_chat_id(0)?, chat_id);
+        assert_eq!(chats.get_chat_id(0), chat_id);

        // change the name of the contact; this also changes the name of the one-to-one-chat
        let test_id = Contact::create(&t, "Bob Nickname", "bob@example.org").await?;
@@ -589,7 +596,7 @@ mod tests {
        assert_eq!(chats.len(), 0); // email-addresses are searchable in contacts, not in chats
        let chats = Chatlist::try_load(&t, 0, Some("Bob Nickname"), None).await?;
        assert_eq!(chats.len(), 1);
-        assert_eq!(chats.get_chat_id(0)?, chat_id);
+        assert_eq!(chats.get_chat_id(0), chat_id);

        // revert name change, this again changes the name of the one-to-one-chat to the email-address
        let test_id = Contact::create(&t, "", "bob@example.org").await?;
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,17 +1,20 @@
 //! # Key-value configuration management.

-use anyhow::{ensure, Context as _, Result};
+use anyhow::{ensure, Result};
 use strum::{EnumProperty, IntoEnumIterator};
 use strum_macros::{AsRefStr, Display, EnumIter, EnumProperty, EnumString};

 use crate::blob::BlobObject;
+use crate::chat::ChatId;
 use crate::constants::DC_VERSION_STR;
-use crate::contact::addr_cmp;
 use crate::context::Context;
 use crate::dc_tools::{dc_get_abs_path, improve_single_line_input};
 use crate::events::EventType;
+use crate::job;
+use crate::message::MsgId;
 use crate::mimefactory::RECOMMENDED_FILE_SIZE;
 use crate::provider::{get_provider_by_id, Provider};
+use crate::stock_str;

 /// The available configuration keys.
 #[derive(
@@ -61,21 +64,30 @@ pub enum Config {
    #[strum(props(default = "1"))]
    E2eeEnabled,

+    /// Ignore Autocrypt recommendation for message encryption if possible.
+    ///
+    /// The only expection is when recommendation is "disable", i.e. encryption is not possible
+    /// because some recipient has no OpenPGP key.
+    #[strum(props(default = "0"))]
+    E2eeForce,
+
    #[strum(props(default = "1"))]
    MdnsEnabled,

-    #[strum(props(default = "0"))]
+    #[strum(props(default = "1"))]
+    InboxWatch,
+
+    #[strum(props(default = "1"))]
    SentboxWatch,

+    #[strum(props(default = "1"))]
+    MvboxWatch,
+
    #[strum(props(default = "1"))]
    MvboxMove,

-    /// Watch for new messages in the "Mvbox" (aka DeltaChat folder) only.
-    ///
-    /// This will not entirely disable other folders, e.g. the spam folder will also still
-    /// be watched for new messages.
    #[strum(props(default = "0"))]
-    OnlyFetchMvbox,
+    SentboxMove, // If `MvboxMove` is true, this config is ignored. Currently only used in tests.

    #[strum(props(default = "0"))] // also change ShowEmails.default() on changes
    ShowEmails,
@@ -112,7 +124,6 @@ pub enum Config {
    DeleteDeviceAfter,

    SaveMimeHeaders,
-    /// The primary email address. Also see `SecondaryAddrs`.
    ConfiguredAddr,
    ConfiguredMailServer,
    ConfiguredMailUser,
@@ -131,14 +142,11 @@ pub enum Config {
    ConfiguredInboxFolder,
    ConfiguredMvboxFolder,
    ConfiguredSentboxFolder,
+    ConfiguredSpamFolder,
    ConfiguredTimestamp,
    ConfiguredProvider,
    Configured,

-    /// All secondary self addresses separated by spaces
-    /// (`addr1@example.org addr2@exapmle.org addr3@example.org`)
-    SecondaryAddrs,
-
    #[strum(serialize = "sys.version")]
    SysVersion,

@@ -205,6 +213,7 @@ impl Context {

        // Default values
        match key {
+            Config::Selfstatus => Ok(Some(stock_str::status_line(self).await)),
            Config::ConfiguredInboxFolder => Ok(Some("INBOX".to_owned())),
            _ => Ok(key.get_str("default").map(|s| s.to_string())),
        }
@@ -232,11 +241,6 @@ impl Context {
        Ok(self.get_config_int(key).await? != 0)
    }

-    pub(crate) async fn should_watch_mvbox(&self) -> Result<bool> {
-        Ok(self.get_config_bool(Config::MvboxMove).await?
-            || self.get_config_bool(Config::OnlyFetchMvbox).await?)
-    }
-
    /// Gets configured "delete_server_after" value.
    ///
    /// `None` means never delete the message, `Some(0)` means delete
@@ -245,7 +249,7 @@ impl Context {
        match self.get_config_int(Config::DeleteServerAfter).await? {
            0 => Ok(None),
            1 => Ok(Some(0)),
-            x => Ok(Some(i64::from(x))),
+            x => Ok(Some(x as i64)),
        }
    }

@@ -267,7 +271,7 @@ impl Context {
    pub async fn get_config_delete_device_after(&self) -> Result<Option<i64>> {
        match self.get_config_int(Config::DeleteDeviceAfter).await? {
            0 => Ok(None),
-            x => Ok(Some(i64::from(x))),
+            x => Ok(Some(x as i64)),
        }
    }

@@ -293,26 +297,55 @@ impl Context {
                    }
                }
                self.emit_event(EventType::SelfavatarChanged);
+                Ok(())
+            }
+            Config::Selfstatus => {
+                let def = stock_str::status_line(self).await;
+                let val = if value.is_none() || value.unwrap() == def {
+                    None
+                } else {
+                    value
+                };
+
+                self.sql.set_raw_config(key, val).await?;
+                Ok(())
            }
            Config::DeleteDeviceAfter => {
-                let ret = self.sql.set_raw_config(key, value).await;
-                // Interrupt ephemeral loop to delete old messages immediately.
-                self.interrupt_ephemeral_task().await;
-                ret?
+                let ret = self
+                    .sql
+                    .set_raw_config(key, value)
+                    .await
+                    .map_err(Into::into);
+                // Force chatlist reload to delete old messages immediately.
+                self.emit_event(EventType::MsgsChanged {
+                    msg_id: MsgId::new(0),
+                    chat_id: ChatId::new(0),
+                });
+                ret
            }
            Config::Displayname => {
                let value = value.map(improve_single_line_input);
                self.sql.set_raw_config(key, value.as_deref()).await?;
+                Ok(())
+            }
+            Config::DeleteServerAfter => {
+                let ret = self
+                    .sql
+                    .set_raw_config(key, value)
+                    .await
+                    .map_err(Into::into);
+                job::schedule_resync(self).await?;
+                ret
            }
            _ => {
                self.sql.set_raw_config(key, value).await?;
+                Ok(())
            }
        }
-        Ok(())
    }

    pub async fn set_config_bool(&self, key: Config, value: bool) -> Result<()> {
-        self.set_config(key, if value { Some("1") } else { Some("0") })
+        self.set_config(key, if value { Some("1") } else { None })
            .await?;
        Ok(())
    }
@@ -333,73 +366,6 @@ impl Context {
    }
 }

-// Separate impl block for self address handling
-impl Context {
-    /// Determine whether the specified addr maps to the/a self addr.
-    /// Returns `false` if no addresses are configured.
-    pub(crate) async fn is_self_addr(&self, addr: &str) -> Result<bool> {
-        Ok(self
-            .get_config(Config::ConfiguredAddr)
-            .await?
-            .iter()
-            .any(|a| addr_cmp(addr, a))
-            || self
-                .get_secondary_self_addrs()
-                .await?
-                .iter()
-                .any(|a| addr_cmp(addr, a)))
-    }
-
-    /// Sets `primary_new` as the new primary self address and saves the old
-    /// primary address (if exists) as a secondary address.
-    ///
-    /// This should only be used by test code and during configure.
-    pub(crate) async fn set_primary_self_addr(&self, primary_new: &str) -> Result<()> {
-        // add old primary address (if exists) to secondary addresses
-        let mut secondary_addrs = self.get_all_self_addrs().await?;
-        // never store a primary address also as a secondary
-        secondary_addrs.retain(|a| !addr_cmp(a, primary_new));
-        self.set_config(
-            Config::SecondaryAddrs,
-            Some(secondary_addrs.join(" ").as_str()),
-        )
-        .await?;
-
-        self.set_config(Config::ConfiguredAddr, Some(primary_new))
-            .await?;
-
-        Ok(())
-    }
-
-    /// Returns all primary and secondary self addresses.
-    pub(crate) async fn get_all_self_addrs(&self) -> Result<Vec<String>> {
-        let primary_addrs = self.get_config(Config::ConfiguredAddr).await?.into_iter();
-        let secondary_addrs = self.get_secondary_self_addrs().await?.into_iter();
-
-        Ok(primary_addrs.chain(secondary_addrs).collect())
-    }
-
-    /// Returns all secondary self addresses.
-    pub(crate) async fn get_secondary_self_addrs(&self) -> Result<Vec<String>> {
-        let secondary_addrs = self
-            .get_config(Config::SecondaryAddrs)
-            .await?
-            .unwrap_or_default();
-        Ok(secondary_addrs
-            .split_ascii_whitespace()
-            .map(|s| s.to_string())
-            .collect())
-    }
-
-    /// Returns the primary self address.
-    /// Returns an error if no self addr is configured.
-    pub async fn get_primary_self_addr(&self) -> Result<String> {
-        self.get_config(Config::ConfiguredAddr)
-            .await?
-            .context("No self addr configured")
-    }
-}
-
 /// Returns all available configuration keys concated together.
 fn get_config_keys_string() -> String {
    let keys = Config::iter().fold(String::new(), |mut acc, key| {
@@ -471,70 +437,4 @@ mod tests {

        Ok(())
    }
-
-    /// Regression test for https://github.com/deltachat/deltachat-core-rust/issues/3012
-    #[async_std::test]
-    async fn test_set_config_bool() -> Result<()> {
-        let t = TestContext::new().await;
-
-        // We need some config that defaults to true
-        let c = Config::E2eeEnabled;
-        assert_eq!(t.get_config_bool(c).await?, true);
-        t.set_config_bool(c, false).await?;
-        assert_eq!(t.get_config_bool(c).await?, false);
-        Ok(())
-    }
-
-    #[async_std::test]
-    async fn test_self_addrs() -> Result<()> {
-        let alice = TestContext::new_alice().await;
-
-        assert!(alice.is_self_addr("alice@example.org").await?);
-        assert_eq!(alice.get_all_self_addrs().await?, vec!["alice@example.org"]);
-        assert!(!alice.is_self_addr("alice@alice.com").await?);
-
-        // Test adding the same primary address
-        alice.set_primary_self_addr("alice@example.org").await?;
-        alice.set_primary_self_addr("Alice@Example.Org").await?;
-        assert_eq!(alice.get_all_self_addrs().await?, vec!["Alice@Example.Org"]);
-
-        // Test adding a new (primary) self address
-        // The address is trimmed during by `LoginParam::from_database()`,
-        // so `set_primary_self_addr()` doesn't have to trim it.
-        alice.set_primary_self_addr(" Alice@alice.com ").await?;
-        assert!(alice.is_self_addr("    aliCe@example.org").await?);
-        assert!(alice.is_self_addr("alice@alice.com").await?);
-        assert_eq!(
-            alice.get_all_self_addrs().await?,
-            vec![" Alice@alice.com ", "Alice@Example.Org"]
-        );
-
-        // Check that the entry is not duplicated
-        alice.set_primary_self_addr("alice@alice.com").await?;
-        alice.set_primary_self_addr("alice@alice.com").await?;
-        assert_eq!(
-            alice.get_all_self_addrs().await?,
-            vec!["alice@alice.com", "Alice@Example.Org"]
-        );
-
-        // Test switching back
-        alice.set_primary_self_addr("alice@example.org").await?;
-        assert_eq!(
-            alice.get_all_self_addrs().await?,
-            vec!["alice@example.org", "alice@alice.com"]
-        );
-
-        // Test setting a new primary self address, the previous self address
-        // should be kept as a secondary self address
-        alice.set_primary_self_addr("alice@alice.xyz").await?;
-        assert_eq!(
-            alice.get_all_self_addrs().await?,
-            vec!["alice@alice.xyz", "alice@example.org", "alice@alice.com"]
-        );
-        assert!(alice.is_self_addr("alice@example.org").await?);
-        assert!(alice.is_self_addr("alice@alice.com").await?);
-        assert!(alice.is_self_addr("Alice@alice.xyz").await?);
-
-        Ok(())
-    }
 }
--- a/src/configure.rs
+++ b/src/configure.rs
@@ -11,20 +11,21 @@ use async_std::task;
 use job::Action;
 use percent_encoding::{utf8_percent_encode, NON_ALPHANUMERIC};

-use crate::config::Config;
-use crate::constants::{DC_LP_AUTH_FLAGS, DC_LP_AUTH_NORMAL, DC_LP_AUTH_OAUTH2};
-use crate::context::Context;
-use crate::dc_tools::{time, EmailAddress};
+use crate::dc_tools::EmailAddress;
 use crate::imap::Imap;
-use crate::job;
 use crate::login_param::{CertificateChecks, LoginParam, ServerLoginParam, Socks5Config};
-use crate::message::{Message, Viewtype};
+use crate::message::Message;
 use crate::oauth2::dc_get_oauth2_addr;
-use crate::param::Params;
 use crate::provider::{Protocol, Socket, UsernamePattern};
 use crate::smtp::Smtp;
 use crate::stock_str;
 use crate::{chat, e2ee, provider};
+use crate::{config::Config, dc_tools::time};
+use crate::{
+    constants::{Viewtype, DC_LP_AUTH_FLAGS, DC_LP_AUTH_NORMAL, DC_LP_AUTH_OAUTH2},
+    job,
+};
+use crate::{context::Context, param::Params};

 use auto_mozilla::moz_autoconfigure;
 use auto_outlook::outlk_autodiscover;
@@ -85,7 +86,7 @@ impl Context {
    async fn inner_configure(&self) -> Result<()> {
        info!(self, "Configure ...");

-        let mut param = LoginParam::load_candidate_params(self).await?;
+        let mut param = LoginParam::from_database(self, "").await?;
        let success = configure(self, &mut param).await;
        self.set_config(Config::NotifyAboutWrongPw, None).await?;

@@ -220,9 +221,7 @@ async fn configure(ctx: &Context, param: &mut LoginParam) -> Result<()> {
            "checking internal provider-info for offline autoconfig"
        );

-        if let Some(provider) =
-            provider::get_provider_info(ctx, &param_domain, socks5_enabled).await
-        {
+        if let Some(provider) = provider::get_provider_info(&param_domain, socks5_enabled).await {
            param.provider = Some(provider);
            match provider.status {
                provider::Status::Ok | provider::Status::Preparation => {
@@ -442,7 +441,8 @@ async fn configure(ctx: &Context, param: &mut LoginParam) -> Result<()> {

    progress!(ctx, 900);

-    let create_mvbox = ctx.should_watch_mvbox().await?;
+    let create_mvbox = ctx.get_config_bool(Config::MvboxWatch).await?
+        || ctx.get_config_bool(Config::MvboxMove).await?;

    imap.configure_folders(ctx, create_mvbox).await?;

@@ -453,14 +453,11 @@ async fn configure(ctx: &Context, param: &mut LoginParam) -> Result<()> {
    drop(imap);

    progress!(ctx, 910);
-
-    if ctx.get_config(Config::ConfiguredAddr).await?.as_deref() != Some(&param.addr) {
-        // Switched account, all server UIDs we know are invalid
-        job::schedule_resync(ctx).await?;
-    }
-
+    // configuration success - write back the configured parameters with the
+    // "configured_" prefix; also write the "configured"-flag */
    // the trailing underscore is correct
-    param.save_as_configured_params(ctx).await?;
+    param.save_to_database(ctx, "configured_").await?;
+    ctx.sql.set_raw_config_bool("configured", true).await?;
    ctx.set_config(Config::ConfiguredTimestamp, Some(&time().to_string()))
        .await?;

@@ -478,8 +475,6 @@ async fn configure(ctx: &Context, param: &mut LoginParam) -> Result<()> {
    progress!(ctx, 940);
    update_device_chats_handle.await?;

-    ctx.sql.set_raw_config_bool("configured", true).await?;
-
    Ok(())
 }

@@ -705,11 +700,11 @@ pub enum Error {
        error: quick_xml::Error,
    },

+    #[error("Failed to get URL: {0}")]
+    ReadUrl(#[from] self::read_url::Error),
+
    #[error("Number of redirection is exceeded")]
    Redirection,
-
-    #[error("{0:#}")]
-    Other(#[from] anyhow::Error),
 }

 #[cfg(test)]
--- a/src/configure/read_url.rs
+++ b/src/configure/read_url.rs
@@ -1,40 +1,20 @@
 use crate::context::Context;

-use anyhow::format_err;
-use anyhow::Context as _;
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+    #[error("URL request error")]
+    GetError(surf::Error),
+}

-pub async fn read_url(context: &Context, url: &str) -> anyhow::Result<String> {
-    match read_url_inner(context, url).await {
-        Ok(s) => {
-            info!(context, "Successfully read url {}", url);
-            Ok(s)
-        }
-        Err(e) => {
-            info!(context, "Can't read URL {}: {:#}", url, e);
-            Err(format_err!("Can't read URL {}: {:#}", url, e))
+pub async fn read_url(context: &Context, url: &str) -> Result<String, Error> {
+    info!(context, "Requesting URL {}", url);
+
+    match surf::get(url).recv_string().await {
+        Ok(res) => Ok(res),
+        Err(err) => {
+            info!(context, "Can\'t read URL {}: {}", url, err);
+
+            Err(Error::GetError(err))
        }
    }
 }
-
-pub async fn read_url_inner(context: &Context, mut url: &str) -> anyhow::Result<String> {
-    let mut _temp; // For the borrow checker
-
-    // Follow up to 10 http-redirects
-    for _i in 0..10 {
-        let mut response = surf::get(url).send().await.map_err(|e| e.into_inner())?;
-        if response.status().is_redirection() {
-            _temp = response
-                .header("location")
-                .context("Redirection doesn't have a target location")?
-                .last()
-                .to_string();
-            info!(context, "Following redirect to {}", _temp);
-            url = &_temp;
-            continue;
-        }
-
-        return response.body_string().await.map_err(|e| e.into_inner());
-    }
-
-    Err(format_err!("Followed 10 redirections"))
-}
--- a/src/configure/server_params.rs
+++ b/src/configure/server_params.rs
@@ -52,8 +52,10 @@ impl ServerParams {
    fn expand_hostnames(self, param_domain: &str) -> Vec<ServerParams> {
        if self.hostname.is_empty() {
            vec![
-                // Try "imap.ex.org"/"smtp.ex.org" and "mail.ex.org" first because if a server exists
-                // under this address, it's likely the correct one.
+                Self {
+                    hostname: param_domain.to_string(),
+                    ..self.clone()
+                },
                Self {
                    hostname: match self.protocol {
                        Protocol::Imap => "imap.".to_string() + param_domain,
@@ -63,12 +65,6 @@ impl ServerParams {
                },
                Self {
                    hostname: "mail.".to_string() + param_domain,
-                    ..self.clone()
-                },
-                // Try "ex.org" last because if it's wrong and the server is configured to
-                // not answer at all, configuration may be stuck for several minutes.
-                Self {
-                    hostname: param_domain.to_string(),
                    ..self
                },
            ]
@@ -300,48 +296,5 @@ mod tests {
                strict_tls: Some(true)
            }],
        );
-
-        // Test that "example.net" is tried after "*.example.net".
-        let v = expand_param_vector(
-            vec![ServerParams {
-                protocol: Protocol::Imap,
-                hostname: "".to_string(),
-                port: 10480,
-                socket: Socket::Ssl,
-                username: "foobar".to_string(),
-                strict_tls: Some(true),
-            }],
-            "foobar@example.net",
-            "example.net",
-        );
-        assert_eq!(
-            v,
-            vec![
-                ServerParams {
-                    protocol: Protocol::Imap,
-                    hostname: "imap.example.net".to_string(),
-                    port: 10480,
-                    socket: Socket::Ssl,
-                    username: "foobar".to_string(),
-                    strict_tls: Some(true)
-                },
-                ServerParams {
-                    protocol: Protocol::Imap,
-                    hostname: "mail.example.net".to_string(),
-                    port: 10480,
-                    socket: Socket::Ssl,
-                    username: "foobar".to_string(),
-                    strict_tls: Some(true)
-                },
-                ServerParams {
-                    protocol: Protocol::Imap,
-                    hostname: "example.net".to_string(),
-                    port: 10480,
-                    socket: Socket::Ssl,
-                    username: "foobar".to_string(),
-                    strict_tls: Some(true)
-                }
-            ],
-        );
    }
 }
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -179,6 +179,16 @@ pub const DC_ELLIPSIS: &str = "[...]";
 /// `char`s), not Unicode Grapheme Clusters.
 pub const DC_DESIRED_TEXT_LEN: usize = 5000;

+pub const DC_CONTACT_ID_UNDEFINED: u32 = 0;
+pub const DC_CONTACT_ID_SELF: u32 = 1;
+pub const DC_CONTACT_ID_INFO: u32 = 2;
+pub const DC_CONTACT_ID_DEVICE: u32 = 5;
+pub const DC_CONTACT_ID_LAST_SPECIAL: u32 = 9;
+
+// decorative address that is used for DC_CONTACT_ID_DEVICE
+// when an api that returns an email is called.
+pub const DC_CONTACT_ID_DEVICE_ADDR: &str = "device@localhost";
+
 // Flags for empty server job

 pub const DC_EMPTY_MVBOX: u32 = 0x01;
@@ -220,6 +230,79 @@ pub const DC_FOLDERS_CONFIGURED_VERSION: i32 = 3;
 // can be overwritten by the setting `max_smtp_rcpt_to` in provider-db.
 pub const DEFAULT_MAX_SMTP_RCPT_TO: usize = 50;

+#[derive(
+    Debug,
+    Display,
+    Clone,
+    Copy,
+    PartialEq,
+    Eq,
+    FromPrimitive,
+    ToPrimitive,
+    FromSql,
+    ToSql,
+    Serialize,
+    Deserialize,
+)]
+#[repr(u32)]
+pub enum Viewtype {
+    Unknown = 0,
+
+    /// Text message.
+    /// The text of the message is set using dc_msg_set_text()
+    /// and retrieved with dc_msg_get_text().
+    Text = 10,
+
+    /// Image message.
+    /// If the image is an animated GIF, the type DC_MSG_GIF should be used.
+    /// File, width and height are set via dc_msg_set_file(), dc_msg_set_dimension
+    /// and retrieved via dc_msg_set_file(), dc_msg_set_dimension().
+    Image = 20,
+
+    /// Animated GIF message.
+    /// File, width and height are set via dc_msg_set_file(), dc_msg_set_dimension()
+    /// and retrieved via dc_msg_get_file(), dc_msg_get_width(), dc_msg_get_height().
+    Gif = 21,
+
+    /// Message containing a sticker, similar to image.
+    /// If possible, the ui should display the image without borders in a transparent way.
+    /// A click on a sticker will offer to install the sticker set in some future.
+    Sticker = 23,
+
+    /// Message containing an Audio file.
+    /// File and duration are set via dc_msg_set_file(), dc_msg_set_duration()
+    /// and retrieved via dc_msg_get_file(), dc_msg_get_duration().
+    Audio = 40,
+
+    /// A voice message that was directly recorded by the user.
+    /// For all other audio messages, the type #DC_MSG_AUDIO should be used.
+    /// File and duration are set via dc_msg_set_file(), dc_msg_set_duration()
+    /// and retrieved via dc_msg_get_file(), dc_msg_get_duration()
+    Voice = 41,
+
+    /// Video messages.
+    /// File, width, height and durarion
+    /// are set via dc_msg_set_file(), dc_msg_set_dimension(), dc_msg_set_duration()
+    /// and retrieved via
+    /// dc_msg_get_file(), dc_msg_get_width(),
+    /// dc_msg_get_height(), dc_msg_get_duration().
+    Video = 50,
+
+    /// Message containing any file, eg. a PDF.
+    /// The file is set via dc_msg_set_file()
+    /// and retrieved via dc_msg_get_file().
+    File = 60,
+
+    /// Message is an invitation to a videochat.
+    VideochatInvitation = 70,
+}
+
+impl Default for Viewtype {
+    fn default() -> Self {
+        Viewtype::Unknown
+    }
+}
+
 pub const DC_JOB_DELETE_MSG_ON_IMAP: i32 = 110;

 #[derive(Debug, Clone, Copy, PartialEq, Eq, FromPrimitive, ToPrimitive)]
@@ -231,9 +314,32 @@ pub enum KeyType {

 #[cfg(test)]
 mod tests {
+    use super::*;
    use num_traits::FromPrimitive;

-    use super::*;
+    #[test]
+    fn test_derive_display_works_as_expected() {
+        assert_eq!(format!("{}", Viewtype::Audio), "Audio");
+    }
+
+    #[test]
+    fn test_viewtype_values() {
+        // values may be written to disk and must not change
+        assert_eq!(Viewtype::Unknown, Viewtype::default());
+        assert_eq!(Viewtype::Unknown, Viewtype::from_i32(0).unwrap());
+        assert_eq!(Viewtype::Text, Viewtype::from_i32(10).unwrap());
+        assert_eq!(Viewtype::Image, Viewtype::from_i32(20).unwrap());
+        assert_eq!(Viewtype::Gif, Viewtype::from_i32(21).unwrap());
+        assert_eq!(Viewtype::Sticker, Viewtype::from_i32(23).unwrap());
+        assert_eq!(Viewtype::Audio, Viewtype::from_i32(40).unwrap());
+        assert_eq!(Viewtype::Voice, Viewtype::from_i32(41).unwrap());
+        assert_eq!(Viewtype::Video, Viewtype::from_i32(50).unwrap());
+        assert_eq!(Viewtype::File, Viewtype::from_i32(60).unwrap());
+        assert_eq!(
+            Viewtype::VideochatInvitation,
+            Viewtype::from_i32(70).unwrap()
+        );
+    }

    #[test]
    fn test_chattype_values() {
--- a/src/contact.rs
+++ b/src/contact.rs
@@ -1,20 +1,21 @@
 //! Contacts module

 use std::convert::{TryFrom, TryInto};
-use std::fmt;

 use anyhow::{bail, ensure, Context as _, Result};
 use async_std::path::PathBuf;
 use deltachat_derive::{FromSql, ToSql};
 use once_cell::sync::Lazy;
 use regex::Regex;
-use serde::{Deserialize, Serialize};

 use crate::aheader::EncryptPreference;
 use crate::chat::ChatId;
 use crate::color::str_to_color;
 use crate::config::Config;
-use crate::constants::{Blocked, Chattype, DC_GCL_ADD_SELF, DC_GCL_VERIFIED_ONLY};
+use crate::constants::{
+    Blocked, Chattype, DC_CONTACT_ID_DEVICE, DC_CONTACT_ID_DEVICE_ADDR, DC_CONTACT_ID_LAST_SPECIAL,
+    DC_CONTACT_ID_SELF, DC_GCL_ADD_SELF, DC_GCL_VERIFIED_ONLY,
+};
 use crate::context::Context;
 use crate::dc_tools::{dc_get_abs_path, improve_single_line_input, EmailAddress};
 use crate::events::EventType;
@@ -24,94 +25,8 @@ use crate::message::MessageState;
 use crate::mimeparser::AvatarAction;
 use crate::param::{Param, Params};
 use crate::peerstate::{Peerstate, PeerstateVerifiedStatus};
-use crate::sql::{self, params_iter};
 use crate::{chat, stock_str};

-/// Contact ID, including reserved IDs.
-///
-/// Some contact IDs are reserved to identify special contacts.  This
-/// type can represent both the special as well as normal contacts.
-#[derive(Debug, Copy, Clone, Default, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct ContactId(u32);
-
-impl ContactId {
-    pub const UNDEFINED: ContactId = ContactId::new(0);
-    /// The owner of the account.
-    ///
-    /// The email-address is set by `dc_set_config` using "addr".
-    pub const SELF: ContactId = ContactId::new(1);
-    pub const INFO: ContactId = ContactId::new(2);
-    pub const DEVICE: ContactId = ContactId::new(5);
-    const LAST_SPECIAL: ContactId = ContactId::new(9);
-
-    /// Address to go with [`ContactId::DEVICE`].
-    ///
-    /// This is used by APIs which need to return an email address for this contact.
-    pub const DEVICE_ADDR: &'static str = "device@localhost";
-
-    /// Creates a new [`ContactId`].
-    pub const fn new(id: u32) -> ContactId {
-        ContactId(id)
-    }
-
-    /// Whether this is a special [`ContactId`].
-    ///
-    /// Some [`ContactId`]s are reserved for special contacts like [`ContactId::SELF`],
-    /// [`ContactId::INFO`] and [`ContactId::DEVICE`].  This function indicates whether this
-    /// [`ContactId`] is any of the reserved special [`ContactId`]s (`true`) or whether it
-    /// is the [`ContactId`] of a real contact (`false`).
-    pub fn is_special(&self) -> bool {
-        self.0 <= Self::LAST_SPECIAL.0
-    }
-
-    /// Numerical representation of the [`ContactId`].
-    ///
-    /// Each contact ID has a unique numerical representation which is used in the database
-    /// (via [`rusqlite::ToSql`]) and also for FFI purposes.  In Rust code you should never
-    /// need to use this directly.
-    pub const fn to_u32(&self) -> u32 {
-        self.0
-    }
-}
-
-impl fmt::Display for ContactId {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        if *self == ContactId::UNDEFINED {
-            write!(f, "Contact#Undefined")
-        } else if *self == ContactId::SELF {
-            write!(f, "Contact#Self")
-        } else if *self == ContactId::INFO {
-            write!(f, "Contact#Info")
-        } else if *self == ContactId::DEVICE {
-            write!(f, "Contact#Device")
-        } else if self.is_special() {
-            write!(f, "Contact#Special{}", self.0)
-        } else {
-            write!(f, "Contact#{}", self.0)
-        }
-    }
-}
-
-/// Allow converting [`ContactId`] to an SQLite type.
-impl rusqlite::types::ToSql for ContactId {
-    fn to_sql(&self) -> rusqlite::Result<rusqlite::types::ToSqlOutput> {
-        let val = rusqlite::types::Value::Integer(i64::from(self.0));
-        let out = rusqlite::types::ToSqlOutput::Owned(val);
-        Ok(out)
-    }
-}
-
-/// Allow converting an SQLite integer directly into [`ContactId`].
-impl rusqlite::types::FromSql for ContactId {
-    fn column_result(value: rusqlite::types::ValueRef) -> rusqlite::types::FromSqlResult<Self> {
-        i64::column_result(value).and_then(|val| {
-            val.try_into()
-                .map(ContactId::new)
-                .map_err(|_| rusqlite::types::FromSqlError::OutOfRange(val))
-        })
-    }
-}
-
 /// An object representing a single contact in memory.
 ///
 /// The contact object is not updated.
@@ -127,7 +42,13 @@ impl rusqlite::types::FromSql for ContactId {
 #[derive(Debug)]
 pub struct Contact {
    /// The contact ID.
-    pub id: ContactId,
+    ///
+    /// Special message IDs:
+    /// - DC_CONTACT_ID_SELF (1) - this is the owner of the account with the email-address set by
+    ///   `dc_set_config` using "addr".
+    ///
+    /// Normal contact IDs are larger than these special ones (larger than DC_CONTACT_ID_LAST_SPECIAL).
+    pub id: u32,

    /// Contact name. It is recommended to use `Contact::get_name`,
    /// `Contact::get_display_name` or `Contact::get_name_n_addr` to access this field.
@@ -262,7 +183,7 @@ impl Default for VerifiedStatus {
 }

 impl Contact {
-    pub async fn load_from_db(context: &Context, contact_id: ContactId) -> Result<Self> {
+    pub async fn load_from_db(context: &Context, contact_id: u32) -> Result<Self> {
        let mut contact = context
            .sql
            .query_row(
@@ -270,7 +191,7 @@ impl Contact {
                c.authname, c.param, c.status
               FROM contacts c
              WHERE c.id=?;",
-                paramsv![contact_id],
+                paramsv![contact_id as i32],
                |row| {
                    let name: String = row.get(0)?;
                    let addr: String = row.get(1)?;
@@ -295,7 +216,7 @@ impl Contact {
                },
            )
            .await?;
-        if contact_id == ContactId::SELF {
+        if contact_id == DC_CONTACT_ID_SELF {
            contact.name = stock_str::self_msg(context).await;
            contact.addr = context
                .get_config(Config::ConfiguredAddr)
@@ -305,9 +226,9 @@ impl Contact {
                .get_config(Config::Selfstatus)
                .await?
                .unwrap_or_default();
-        } else if contact_id == ContactId::DEVICE {
+        } else if contact_id == DC_CONTACT_ID_DEVICE {
            contact.name = stock_str::device_messages(context).await;
-            contact.addr = ContactId::DEVICE_ADDR.to_string();
+            contact.addr = DC_CONTACT_ID_DEVICE_ADDR.to_string();
            contact.status = stock_str::device_messages_hint(context).await;
        }
        Ok(contact)
@@ -324,18 +245,18 @@ impl Contact {
    }

    /// Check if a contact is blocked.
-    pub async fn is_blocked_load(context: &Context, id: ContactId) -> Result<bool> {
+    pub async fn is_blocked_load(context: &Context, id: u32) -> Result<bool> {
        let blocked = Self::load_from_db(context, id).await?.blocked;
        Ok(blocked)
    }

    /// Block the given contact.
-    pub async fn block(context: &Context, id: ContactId) -> Result<()> {
+    pub async fn block(context: &Context, id: u32) -> Result<()> {
        set_block_contact(context, id, true).await
    }

    /// Unblock the given contact.
-    pub async fn unblock(context: &Context, id: ContactId) -> Result<()> {
+    pub async fn unblock(context: &Context, id: u32) -> Result<()> {
        set_block_contact(context, id, false).await
    }

@@ -348,7 +269,7 @@ impl Contact {
    /// a bunch of addresses.
    ///
    /// May result in a `#DC_EVENT_CONTACTS_CHANGED` event.
-    pub async fn create(context: &Context, name: &str, addr: &str) -> Result<ContactId> {
+    pub async fn create(context: &Context, name: &str, addr: &str) -> Result<u32> {
        let name = improve_single_line_input(name);
        ensure!(!addr.is_empty(), "Cannot create contact with empty address");

@@ -371,12 +292,12 @@ impl Contact {
    }

    /// Mark messages from a contact as noticed.
-    pub async fn mark_noticed(context: &Context, id: ContactId) -> Result<()> {
+    pub async fn mark_noticed(context: &Context, id: u32) -> Result<()> {
        context
            .sql
            .execute(
                "UPDATE msgs SET state=? WHERE from_id=? AND state=?;",
-                paramsv![MessageState::InNoticed, id, MessageState::InFresh],
+                paramsv![MessageState::InNoticed, id as i32, MessageState::InFresh],
            )
            .await?;
        Ok(())
@@ -390,26 +311,31 @@ impl Contact {
    /// use `dc_may_be_valid_addr()`.
    pub async fn lookup_id_by_addr(
        context: &Context,
-        addr: &str,
+        addr: impl AsRef<str>,
        min_origin: Origin,
-    ) -> Result<Option<ContactId>> {
-        if addr.is_empty() {
+    ) -> Result<Option<u32>> {
+        if addr.as_ref().is_empty() {
            bail!("lookup_id_by_addr: empty address");
        }

-        let addr_normalized = addr_normalize(addr);
+        let addr_normalized = addr_normalize(addr.as_ref());

-        if context.is_self_addr(addr_normalized).await? {
-            return Ok(Some(ContactId::SELF));
+        if let Some(addr_self) = context.get_config(Config::ConfiguredAddr).await? {
+            if addr_cmp(addr_normalized, addr_self) {
+                return Ok(Some(DC_CONTACT_ID_SELF));
+            }
        }
-
        let id = context
            .sql
            .query_get_value(
                "SELECT id FROM contacts \
            WHERE addr=?1 COLLATE NOCASE \
            AND id>?2 AND origin>=?3 AND blocked=0;",
-                paramsv![addr_normalized, ContactId::LAST_SPECIAL, min_origin as u32,],
+                paramsv![
+                    addr_normalized,
+                    DC_CONTACT_ID_LAST_SPECIAL as i32,
+                    min_origin as u32,
+                ],
            )
            .await?;
        Ok(id)
@@ -445,16 +371,20 @@ impl Contact {
        name: &str,
        addr: &str,
        mut origin: Origin,
-    ) -> Result<(ContactId, Modifier)> {
+    ) -> Result<(u32, Modifier)> {
        let mut sth_modified = Modifier::None;

        ensure!(!addr.is_empty(), "Can not add_or_lookup empty address");
        ensure!(origin != Origin::Unknown, "Missing valid origin");

        let addr = addr_normalize(addr).to_string();
+        let addr_self = context
+            .get_config(Config::ConfiguredAddr)
+            .await?
+            .unwrap_or_default();

-        if context.is_self_addr(&addr).await? {
-            return Ok((ContactId::SELF, sth_modified));
+        if addr_cmp(&addr, addr_self) {
+            return Ok((DC_CONTACT_ID_SELF, sth_modified));
        }

        if !may_be_valid_addr(&addr) {
@@ -570,7 +500,7 @@ impl Contact {
                        paramsv![Chattype::Single, isize::try_from(row_id)?]
                    ).await?;
                    if let Some(chat_id) = chat_id {
-                        let contact = Contact::get_by_id(context, ContactId::new(row_id)).await?;
+                        let contact = Contact::get_by_id(context, row_id as u32).await?;
                        let chat_name = contact.get_display_name();
                        match context
                            .sql
@@ -627,7 +557,7 @@ impl Contact {
            }
        }

-        Ok((ContactId::new(row_id), sth_modified))
+        Ok((row_id, sth_modified))
    }

    /// Add a number of contacts.
@@ -652,7 +582,7 @@ impl Contact {

        for (name, addr) in split_address_book(addr_book).into_iter() {
            let (name, addr) = sanitize_name_and_addr(name, addr);
-            let name = normalize_name(&name);
+            let name = normalize_name(name);
            match Contact::add_or_lookup(context, &name, &addr, Origin::AddressBook).await {
                Err(err) => {
                    warn!(
@@ -687,8 +617,12 @@ impl Contact {
        context: &Context,
        listflags: u32,
        query: Option<impl AsRef<str>>,
-    ) -> Result<Vec<ContactId>> {
-        let self_addrs = context.get_all_self_addrs().await?;
+    ) -> Result<Vec<u32>> {
+        let self_addr = context
+            .get_config(Config::ConfiguredAddr)
+            .await?
+            .unwrap_or_default();
+
        let mut add_self = false;
        let mut ret = Vec::new();
        let flag_verified_only = (listflags & DC_GCL_VERIFIED_ONLY) != 0;
@@ -699,46 +633,40 @@ impl Contact {
            context
                .sql
                .query_map(
-                    format!(
-                        "SELECT c.id FROM contacts c \
+                    "SELECT c.id FROM contacts c \
                 LEFT JOIN acpeerstates ps ON c.addr=ps.addr  \
-                 WHERE c.addr NOT IN ({})
-                 AND c.id>? \
-                 AND c.origin>=? \
+                 WHERE c.addr!=?1 \
+                 AND c.id>?2 \
+                 AND c.origin>=?3 \
                 AND c.blocked=0 \
-                 AND (iif(c.name='',c.authname,c.name) LIKE ? OR c.addr LIKE ?) \
-                 AND (1=? OR LENGTH(ps.verified_key_fingerprint)!=0)  \
+                 AND (iif(c.name='',c.authname,c.name) LIKE ?4 OR c.addr LIKE ?5) \
+                 AND (1=?6 OR LENGTH(ps.verified_key_fingerprint)!=0)  \
                 ORDER BY LOWER(iif(c.name='',c.authname,c.name)||c.addr),c.id;",
-                        sql::repeat_vars(self_addrs.len())
-                    ),
-                    rusqlite::params_from_iter(params_iter(&self_addrs).chain(params_iterv![
-                        ContactId::LAST_SPECIAL,
+                    paramsv![
+                        self_addr,
+                        DC_CONTACT_ID_LAST_SPECIAL as i32,
                        Origin::IncomingReplyTo,
                        s3str_like_cmd,
                        s3str_like_cmd,
                        if flag_verified_only { 0i32 } else { 1i32 },
-                    ])),
-                    |row| row.get::<_, ContactId>(0),
+                    ],
+                    |row| row.get::<_, i32>(0),
                    |ids| {
                        for id in ids {
-                            ret.push(id?);
+                            ret.push(id? as u32);
                        }
                        Ok(())
                    },
                )
                .await?;

-            if let Some(query) = query {
-                let self_addr = context
-                    .get_config(Config::ConfiguredAddr)
-                    .await?
-                    .unwrap_or_default();
-                let self_name = context
-                    .get_config(Config::Displayname)
-                    .await?
-                    .unwrap_or_default();
-                let self_name2 = stock_str::self_msg(context);
+            let self_name = context
+                .get_config(Config::Displayname)
+                .await?
+                .unwrap_or_default();
+            let self_name2 = stock_str::self_msg(context);

+            if let Some(query) = query {
                if self_addr.contains(query.as_ref())
                    || self_name.contains(query.as_ref())
                    || self_name2.await.contains(query.as_ref())
@@ -754,23 +682,21 @@ impl Contact {
            context
                .sql
                .query_map(
-                    format!(
-                        "SELECT id FROM contacts
-                 WHERE addr NOT IN ({})
-                 AND id>?
-                 AND origin>=?
+                    "SELECT id FROM contacts
+                 WHERE addr!=?1
+                 AND id>?2
+                 AND origin>=?3
                 AND blocked=0
                 ORDER BY LOWER(iif(name='',authname,name)||addr),id;",
-                        sql::repeat_vars(self_addrs.len())
-                    ),
-                    rusqlite::params_from_iter(params_iter(&self_addrs).chain(params_iterv![
-                        ContactId::LAST_SPECIAL,
+                    paramsv![
+                        self_addr,
+                        DC_CONTACT_ID_LAST_SPECIAL as i32,
                        Origin::IncomingReplyTo
-                    ])),
-                    |row| row.get::<_, ContactId>(0),
+                    ],
+                    |row| row.get::<_, i32>(0),
                    |ids| {
                        for id in ids {
-                            ret.push(id?);
+                            ret.push(id? as u32);
                        }
                        Ok(())
                    },
@@ -779,7 +705,7 @@ impl Contact {
        }

        if flag_add_self && add_self {
-            ret.push(ContactId::SELF);
+            ret.push(DC_CONTACT_ID_SELF);
        }

        Ok(ret)
@@ -834,14 +760,14 @@ impl Contact {
            .sql
            .count(
                "SELECT COUNT(*) FROM contacts WHERE id>? AND blocked!=0",
-                paramsv![ContactId::LAST_SPECIAL],
+                paramsv![DC_CONTACT_ID_LAST_SPECIAL],
            )
            .await?;
        Ok(count as usize)
    }

    /// Get blocked contacts.
-    pub async fn get_all_blocked(context: &Context) -> Result<Vec<ContactId>> {
+    pub async fn get_all_blocked(context: &Context) -> Result<Vec<u32>> {
        Contact::update_blocked_mailinglist_contacts(context)
            .await
            .context("cannot update blocked mailinglist contacts")?;
@@ -850,8 +776,8 @@ impl Contact {
            .sql
            .query_map(
                "SELECT id FROM contacts WHERE id>? AND blocked!=0 ORDER BY LOWER(iif(name='',authname,name)||addr),id;",
-                paramsv![ContactId::LAST_SPECIAL],
-                |row| row.get::<_, ContactId>(0),
+                paramsv![DC_CONTACT_ID_LAST_SPECIAL as i32],
+                |row| row.get::<_, u32>(0),
                |ids| {
                    ids.collect::<std::result::Result<Vec<_>, _>>()
                        .map_err(Into::into)
@@ -866,15 +792,15 @@ impl Contact {
    /// This function returns a string explaining the encryption state
    /// of the contact and if the connection is encrypted the
    /// fingerprints of the keys involved.
-    pub async fn get_encrinfo(context: &Context, contact_id: ContactId) -> Result<String> {
+    pub async fn get_encrinfo(context: &Context, contact_id: u32) -> Result<String> {
        ensure!(
-            !contact_id.is_special(),
+            contact_id > DC_CONTACT_ID_LAST_SPECIAL,
            "Can not provide encryption info for special contact"
        );

        let mut ret = String::new();
        if let Ok(contact) = Contact::load_from_db(context, contact_id).await {
-            let loginparam = LoginParam::load_configured_params(context).await?;
+            let loginparam = LoginParam::from_database(context, "configured_").await?;
            let peerstate = Peerstate::from_addr(context, &contact.addr).await?;

            if let Some(peerstate) = peerstate.filter(|peerstate| {
@@ -935,21 +861,27 @@ impl Contact {
    /// possible as the contact is in use. In this case, the contact can be blocked.
    ///
    /// May result in a `#DC_EVENT_CONTACTS_CHANGED` event.
-    pub async fn delete(context: &Context, contact_id: ContactId) -> Result<()> {
-        ensure!(!contact_id.is_special(), "Can not delete special contact");
+    pub async fn delete(context: &Context, contact_id: u32) -> Result<()> {
+        ensure!(
+            contact_id > DC_CONTACT_ID_LAST_SPECIAL,
+            "Can not delete special contact"
+        );

        let count_chats = context
            .sql
            .count(
                "SELECT COUNT(*) FROM chats_contacts WHERE contact_id=?;",
-                paramsv![contact_id],
+                paramsv![contact_id as i32],
            )
            .await?;

        if count_chats == 0 {
            match context
                .sql
-                .execute("DELETE FROM contacts WHERE id=?;", paramsv![contact_id])
+                .execute(
+                    "DELETE FROM contacts WHERE id=?;",
+                    paramsv![contact_id as i32],
+                )
                .await
            {
                Ok(_) => {
@@ -972,10 +904,10 @@ impl Contact {

    /// Get a single contact object.  For a list, see eg. dc_get_contacts().
    ///
-    /// For contact ContactId::SELF (1), the function returns sth.
+    /// For contact DC_CONTACT_ID_SELF (1), the function returns sth.
    /// like "Me" in the selected language and the email address
    /// defined by dc_set_config().
-    pub async fn get_by_id(context: &Context, contact_id: ContactId) -> Result<Contact> {
+    pub async fn get_by_id(context: &Context, contact_id: u32) -> Result<Contact> {
        let contact = Contact::load_from_db(context, contact_id).await?;

        Ok(contact)
@@ -987,7 +919,7 @@ impl Contact {
            .sql
            .execute(
                "UPDATE contacts SET param=? WHERE id=?",
-                paramsv![self.param.to_string(), self.id],
+                paramsv![self.param.to_string(), self.id as i32],
            )
            .await?;
        Ok(())
@@ -999,14 +931,14 @@ impl Contact {
            .sql
            .execute(
                "UPDATE contacts SET status=? WHERE id=?",
-                paramsv![self.status, self.id],
+                paramsv![self.status, self.id as i32],
            )
            .await?;
        Ok(())
    }

    /// Get the ID of the contact.
-    pub fn get_id(&self) -> ContactId {
+    pub fn get_id(&self) -> u32 {
        self.id
    }

@@ -1065,7 +997,7 @@ impl Contact {
    /// This is the image set by each remote user on their own
    /// using dc_set_config(context, "selfavatar", image).
    pub async fn get_profile_image(&self, context: &Context) -> Result<Option<PathBuf>> {
-        if self.id == ContactId::SELF {
+        if self.id == DC_CONTACT_ID_SELF {
            if let Some(p) = context.get_config(Config::Selfavatar).await? {
                return Ok(Some(PathBuf::from(p)));
            }
@@ -1111,7 +1043,7 @@ impl Contact {
    ) -> Result<VerifiedStatus> {
        // We're always sort of secured-verified as we could verify the key on this device any time with the key
        // on this device
-        if self.id == ContactId::SELF {
+        if self.id == DC_CONTACT_ID_SELF {
            return Ok(VerifiedStatus::BidirectVerified);
        }

@@ -1130,6 +1062,26 @@ impl Contact {
        Ok(VerifiedStatus::Unverified)
    }

+    pub async fn addr_equals_contact(
+        context: &Context,
+        addr: &str,
+        contact_id: u32,
+    ) -> Result<bool> {
+        if addr.is_empty() {
+            return Ok(false);
+        }
+
+        let contact = Contact::load_from_db(context, contact_id).await?;
+        if !contact.addr.is_empty() {
+            let normalized_addr = addr_normalize(addr);
+            if contact.addr == normalized_addr {
+                return Ok(true);
+            }
+        }
+
+        Ok(false)
+    }
+
    pub async fn get_real_cnt(context: &Context) -> Result<usize> {
        if !context.sql.is_open().await {
            return Ok(0);
@@ -1139,14 +1091,14 @@ impl Contact {
            .sql
            .count(
                "SELECT COUNT(*) FROM contacts WHERE id>?;",
-                paramsv![ContactId::LAST_SPECIAL],
+                paramsv![DC_CONTACT_ID_LAST_SPECIAL as i32],
            )
            .await?;
        Ok(count)
    }

-    pub async fn real_exists_by_id(context: &Context, contact_id: ContactId) -> Result<bool> {
-        if contact_id.is_special() {
+    pub async fn real_exists_by_id(context: &Context, contact_id: u32) -> Result<bool> {
+        if contact_id <= DC_CONTACT_ID_LAST_SPECIAL {
            return Ok(false);
        }

@@ -1154,7 +1106,7 @@ impl Contact {
            .sql
            .exists(
                "SELECT COUNT(*) FROM contacts WHERE id=?;",
-                paramsv![contact_id],
+                paramsv![contact_id as i32],
            )
            .await?;
        Ok(exists)
@@ -1162,14 +1114,14 @@ impl Contact {

    pub async fn scaleup_origin_by_id(
        context: &Context,
-        contact_id: ContactId,
+        contact_id: u32,
        origin: Origin,
    ) -> Result<()> {
        context
            .sql
            .execute(
                "UPDATE contacts SET origin=? WHERE id=? AND origin<?;",
-                paramsv![origin, contact_id, origin],
+                paramsv![origin, contact_id as i32, origin],
            )
            .await?;
        Ok(())
@@ -1213,13 +1165,9 @@ fn sanitize_name_and_addr(name: &str, addr: &str) -> (String, String) {
    }
 }

-async fn set_block_contact(
-    context: &Context,
-    contact_id: ContactId,
-    new_blocking: bool,
-) -> Result<()> {
+async fn set_block_contact(context: &Context, contact_id: u32, new_blocking: bool) -> Result<()> {
    ensure!(
-        !contact_id.is_special(),
+        contact_id > DC_CONTACT_ID_LAST_SPECIAL,
        "Can't block special contact {}",
        contact_id
    );
@@ -1231,7 +1179,7 @@ async fn set_block_contact(
            .sql
            .execute(
                "UPDATE contacts SET blocked=? WHERE id=?;",
-                paramsv![i32::from(new_blocking), contact_id],
+                paramsv![new_blocking as i32, contact_id as i32],
            )
            .await?;

@@ -1262,8 +1210,7 @@ WHERE type=? AND id IN (
        // also unblock mailinglist
        // if the contact is a mailinglist address explicitly created to allow unblocking
        if !new_blocking && contact.origin == Origin::MailinglistAddress {
-            if let Some((chat_id, _, _)) =
-                chat::get_chat_id_by_grpid(context, &contact.addr).await?
+            if let Some((chat_id, _, _)) = chat::get_chat_id_by_grpid(context, contact.addr).await?
            {
                chat_id.unblock(context).await?;
            }
@@ -1282,14 +1229,14 @@ WHERE type=? AND id IN (
 /// this typically happens if we see message with our own profile image, sent from another device.
 pub(crate) async fn set_profile_image(
    context: &Context,
-    contact_id: ContactId,
+    contact_id: u32,
    profile_image: &AvatarAction,
    was_encrypted: bool,
 ) -> Result<()> {
    let mut contact = Contact::load_from_db(context, contact_id).await?;
    let changed = match profile_image {
        AvatarAction::Change(profile_image) => {
-            if contact_id == ContactId::SELF {
+            if contact_id == DC_CONTACT_ID_SELF {
                if was_encrypted {
                    context
                        .set_config(Config::Selfavatar, Some(profile_image))
@@ -1303,7 +1250,7 @@ pub(crate) async fn set_profile_image(
            true
        }
        AvatarAction::Delete => {
-            if contact_id == ContactId::SELF {
+            if contact_id == DC_CONTACT_ID_SELF {
                if was_encrypted {
                    context.set_config(Config::Selfavatar, None).await?;
                } else {
@@ -1329,12 +1276,12 @@ pub(crate) async fn set_profile_image(
 /// between Delta Chat devices.
 pub(crate) async fn set_status(
    context: &Context,
-    contact_id: ContactId,
+    contact_id: u32,
    status: String,
    encrypted: bool,
    has_chat_version: bool,
 ) -> Result<()> {
-    if contact_id == ContactId::SELF {
+    if contact_id == DC_CONTACT_ID_SELF {
        if encrypted && has_chat_version {
            context
                .set_config(Config::Selfstatus, Some(&status))
@@ -1355,11 +1302,11 @@ pub(crate) async fn set_status(
 /// Updates last seen timestamp of the contact if it is earlier than the given `timestamp`.
 pub(crate) async fn update_last_seen(
    context: &Context,
-    contact_id: ContactId,
+    contact_id: u32,
    timestamp: i64,
 ) -> Result<()> {
    ensure!(
-        !contact_id.is_special(),
+        contact_id > DC_CONTACT_ID_LAST_SPECIAL,
        "Can not update special contact last seen timestamp"
    );

@@ -1379,8 +1326,8 @@ pub(crate) async fn update_last_seen(
 /// - Trims the resulting string
 ///
 /// Typically, this function is not needed as it is called implicitly by `Contact::add_address_book`.
-pub fn normalize_name(full_name: &str) -> String {
-    let full_name = full_name.trim();
+pub fn normalize_name(full_name: impl AsRef<str>) -> String {
+    let full_name = full_name.as_ref().trim();
    if full_name.is_empty() {
        return full_name.into();
    }
@@ -1420,9 +1367,20 @@ fn cat_fingerprint(
    }
 }

-pub fn addr_cmp(addr1: &str, addr2: &str) -> bool {
-    let norm1 = addr_normalize(addr1).to_lowercase();
-    let norm2 = addr_normalize(addr2).to_lowercase();
+impl Context {
+    /// determine whether the specified addr maps to the/a self addr
+    pub async fn is_self_addr(&self, addr: &str) -> Result<bool> {
+        if let Some(self_addr) = self.get_config(Config::ConfiguredAddr).await? {
+            Ok(addr_cmp(self_addr, addr))
+        } else {
+            Ok(false)
+        }
+    }
+}
+
+pub fn addr_cmp(addr1: impl AsRef<str>, addr2: impl AsRef<str>) -> bool {
+    let norm1 = addr_normalize(addr1.as_ref()).to_lowercase();
+    let norm2 = addr_normalize(addr2.as_ref()).to_lowercase();

    norm1 == norm2
 }
@@ -1452,17 +1410,6 @@ mod tests {
    use crate::message::Message;
    use crate::test_utils::{self, TestContext};

-    #[test]
-    fn test_contact_id_values() {
-        // Some FFI users need to have the values of these fixed, how naughty.  But let's
-        // make sure we don't modify them anyway.
-        assert_eq!(ContactId::UNDEFINED.to_u32(), 0);
-        assert_eq!(ContactId::SELF.to_u32(), 1);
-        assert_eq!(ContactId::INFO.to_u32(), 2);
-        assert_eq!(ContactId::DEVICE.to_u32(), 5);
-        assert_eq!(ContactId::LAST_SPECIAL.to_u32(), 9);
-    }
-
    #[test]
    fn test_may_be_valid_addr() {
        assert_eq!(may_be_valid_addr(""), false);
@@ -1515,8 +1462,6 @@ mod tests {
    async fn test_get_contacts() -> Result<()> {
        let context = TestContext::new().await;

-        assert!(context.get_all_self_addrs().await?.is_empty());
-
        // Bob is not in the contacts yet.
        let contacts = Contact::get_all(&context.ctx, 0, Some("bob")).await?;
        assert_eq!(contacts.len(), 0);
@@ -1528,7 +1473,7 @@ mod tests {
            Origin::IncomingReplyTo,
        )
        .await?;
-        assert_ne!(id, ContactId::UNDEFINED);
+        assert_ne!(id, 0);

        let contact = Contact::load_from_db(&context.ctx, id).await.unwrap();
        assert_eq!(contact.get_name(), "");
@@ -1580,9 +1525,9 @@ mod tests {
        let t = TestContext::new().await;
        assert_eq!(t.is_self_addr("me@me.org").await?, false);

-        t.configure_addr("you@you.net").await;
+        let addr = t.configure_alice().await;
        assert_eq!(t.is_self_addr("me@me.org").await?, false);
-        assert_eq!(t.is_self_addr("you@you.net").await?, true);
+        assert_eq!(t.is_self_addr(&addr).await?, true);

        Ok(())
    }
@@ -1606,7 +1551,7 @@ mod tests {
            Contact::add_or_lookup(&t, "bla foo", "one@eins.org", Origin::IncomingUnknownTo)
                .await
                .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        assert_eq!(sth_modified, Modifier::Modified);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_id(), contact_id);
@@ -1633,7 +1578,7 @@ mod tests {
            Contact::add_or_lookup(&t, "", "three@drei.sam", Origin::IncomingUnknownTo)
                .await
                .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        assert_eq!(sth_modified, Modifier::None);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_name(), "");
@@ -1673,7 +1618,7 @@ mod tests {
            Contact::add_or_lookup(&t, "", "alice@w.de", Origin::IncomingUnknownTo)
                .await
                .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        assert_eq!(sth_modified, Modifier::None);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_name(), "Wonderland, Alice");
@@ -1682,7 +1627,8 @@ mod tests {
        assert_eq!(contact.get_name_n_addr(), "Wonderland, Alice (alice@w.de)");

        // check SELF
-        let contact = Contact::load_from_db(&t, ContactId::SELF).await.unwrap();
+        let contact = Contact::load_from_db(&t, DC_CONTACT_ID_SELF).await.unwrap();
+        assert_eq!(DC_CONTACT_ID_SELF, 1);
        assert_eq!(contact.get_name(), stock_str::self_msg(&t).await);
        assert_eq!(contact.get_addr(), ""); // we're not configured
        assert!(!contact.is_blocked());
@@ -1692,7 +1638,7 @@ mod tests {
    async fn test_delete() -> Result<()> {
        let alice = TestContext::new_alice().await;

-        assert!(Contact::delete(&alice, ContactId::SELF).await.is_err());
+        assert!(Contact::delete(&alice, DC_CONTACT_ID_SELF).await.is_err());

        // Create Bob contact
        let (contact_id, _) =
@@ -1725,7 +1671,7 @@ mod tests {
            Contact::add_or_lookup(&t, "bob1", "bob@example.org", Origin::IncomingUnknownFrom)
                .await
                .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        assert_eq!(sth_modified, Modifier::Created);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_authname(), "bob1");
@@ -1737,7 +1683,7 @@ mod tests {
            Contact::add_or_lookup(&t, "bob2", "bob@example.org", Origin::IncomingUnknownFrom)
                .await
                .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        assert_eq!(sth_modified, Modifier::Modified);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_authname(), "bob2");
@@ -1748,7 +1694,7 @@ mod tests {
        let contact_id = Contact::create(&t, "bob3", "bob@example.org")
            .await
            .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_authname(), "bob2");
        assert_eq!(contact.get_name(), "bob3");
@@ -1759,7 +1705,7 @@ mod tests {
            Contact::add_or_lookup(&t, "bob4", "bob@example.org", Origin::IncomingUnknownFrom)
                .await
                .unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        assert_eq!(sth_modified, Modifier::Modified);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_authname(), "bob4");
@@ -1773,7 +1719,7 @@ mod tests {

        // manually create "claire@example.org" without a given name
        let contact_id = Contact::create(&t, "", "claire@example.org").await.unwrap();
-        assert!(!contact_id.is_special());
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
        let contact = Contact::load_from_db(&t, contact_id).await.unwrap();
        assert_eq!(contact.get_authname(), "");
        assert_eq!(contact.get_name(), "");
@@ -1944,10 +1890,10 @@ mod tests {

        let alice = TestContext::new_alice().await;

-        let id = Contact::lookup_id_by_addr(&alice.ctx, "alice@example.org", Origin::Unknown)
+        let id = Contact::lookup_id_by_addr(&alice.ctx, "alice@example.com", Origin::Unknown)
            .await
            .unwrap();
-        assert_eq!(id, Some(ContactId::SELF));
+        assert_eq!(id, Some(DC_CONTACT_ID_SELF));
    }

    #[async_std::test]
@@ -1955,9 +1901,9 @@ mod tests {
        let alice = TestContext::new_alice().await;

        // Return error for special IDs
-        let encrinfo = Contact::get_encrinfo(&alice, ContactId::SELF).await;
+        let encrinfo = Contact::get_encrinfo(&alice, DC_CONTACT_ID_SELF).await;
        assert!(encrinfo.is_err());
-        let encrinfo = Contact::get_encrinfo(&alice, ContactId::DEVICE).await;
+        let encrinfo = Contact::get_encrinfo(&alice, DC_CONTACT_ID_DEVICE).await;
        assert!(encrinfo.is_err());

        let (contact_bob_id, _modified) =
@@ -1969,7 +1915,7 @@ mod tests {

        let bob = TestContext::new_bob().await;
        let chat_alice = bob
-            .create_chat_with_contact("Alice", "alice@example.org")
+            .create_chat_with_contact("Alice", "alice@example.com")
            .await;
        send_text_msg(&bob, chat_alice.id, "Hello".to_string()).await?;
        let msg = bob.pop_sent_msg().await;
@@ -1981,7 +1927,7 @@ mod tests {
            "End-to-end encryption preferred.
 Fingerprints:

-alice@example.org:
+alice@example.com:
 2E6F A2CB 23B5 32D7 2863
 4B58 64B0 8F61 A9ED 9443

@@ -2032,7 +1978,7 @@ CCCB 5AA9 F6E1 141C 9431

        // Bob replies.
        let chat = bob
-            .create_chat_with_contact("Alice", "alice@example.org")
+            .create_chat_with_contact("Alice", "alice@example.com")
            .await;

        send_text_msg(&bob, chat.id, "Reply".to_string()).await?;
@@ -2083,12 +2029,12 @@ CCCB 5AA9 F6E1 141C 9431

        alice1
            .evtracker
-            .get_matching(|e| matches!(e, EventType::SelfavatarChanged))
+            .get_matching(|e| e == EventType::SelfavatarChanged)
            .await;

        // Bob sends a message so that Alice can encrypt to him.
        let chat = bob
-            .create_chat_with_contact("Alice", "alice@example.org")
+            .create_chat_with_contact("Alice", "alice@example.com")
            .await;

        send_text_msg(&bob, chat.id, "Reply".to_string()).await?;
@@ -2113,7 +2059,7 @@ CCCB 5AA9 F6E1 141C 9431
        assert!(alice2.get_config(Config::Selfavatar).await?.is_some());
        alice2
            .evtracker
-            .get_matching(|e| matches!(e, EventType::SelfavatarChanged))
+            .get_matching(|e| e == EventType::SelfavatarChanged)
            .await;

        Ok(())
@@ -2131,14 +2077,14 @@ CCCB 5AA9 F6E1 141C 9431

        let mime = br#"Subject: Hello
 Message-ID: message@example.net
-To: Alice <alice@example.org>
+To: Alice <alice@example.com>
 From: Bob <bob@example.net>
 Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
 Chat-Version: 1.0
 Date: Sun, 22 Mar 2020 22:37:55 +0000

 Hi."#;
-        dc_receive_imf(&alice, mime, false).await?;
+        dc_receive_imf(&alice, mime, "Inbox", 1, false).await?;
        let msg = alice.get_last_msg().await;

        let timestamp = msg.get_timestamp();
--- a/src/context.rs
+++ b/src/context.rs
@@ -10,6 +10,7 @@ use async_std::{
    channel::{self, Receiver, Sender},
    path::{Path, PathBuf},
    sync::{Arc, Mutex, RwLock},
+    task,
 };

 use crate::chat::{get_chat_cnt, ChatId};
@@ -23,6 +24,7 @@ use crate::login_param::LoginParam;
 use crate::message::{self, MessageState, MsgId};
 use crate::quota::QuotaInfo;
 use crate::scheduler::Scheduler;
+use crate::securejoin::Bob;
 use crate::sql::Sql;

 #[derive(Clone, Debug)]
@@ -40,9 +42,13 @@ impl Deref for Context {

 #[derive(Debug)]
 pub struct InnerContext {
+    /// Database file path
+    pub(crate) dbfile: PathBuf,
    /// Blob directory path
    pub(crate) blobdir: PathBuf,
    pub(crate) sql: Sql,
+    pub(crate) os_name: Option<String>,
+    pub(crate) bob: Bob,
    pub(crate) last_smeared_timestamp: RwLock<i64>,
    pub(crate) running_state: RwLock<RunningState>,
    /// Mutex to avoid generating the key for the user more than once.
@@ -55,6 +61,7 @@ pub struct InnerContext {
    pub(crate) events: Events,

    pub(crate) scheduler: RwLock<Scheduler>,
+    pub(crate) ephemeral_task: RwLock<Option<task::JoinHandle<()>>>,

    /// Recently loaded quota information, if any.
    /// Set to `None` if quota was never tried to load.
@@ -78,7 +85,7 @@ pub struct InnerContext {

 #[derive(Debug)]
 pub struct RunningState {
-    ongoing_running: bool,
+    pub ongoing_running: bool,
    shall_stop_ongoing: bool,
    cancel_sender: Option<Sender<()>>,
 }
@@ -100,19 +107,10 @@ pub fn get_info() -> BTreeMap<&'static str, String> {
 }

 impl Context {
-    /// Creates new context and opens the database.
-    pub async fn new(dbfile: PathBuf, id: u32) -> Result<Context> {
-        let context = Self::new_closed(dbfile, id).await?;
+    /// Creates new context.
+    pub async fn new(os_name: String, dbfile: PathBuf, id: u32) -> Result<Context> {
+        // pretty_env_logger::try_init_timed().ok();

-        // Open the database if is not encrypted.
-        if context.check_passphrase("".to_string()).await? {
-            context.sql.open(&context, "".to_string()).await?;
-        }
-        Ok(context)
-    }
-
-    /// Creates new context without opening the database.
-    pub async fn new_closed(dbfile: PathBuf, id: u32) -> Result<Context> {
        let mut blob_fname = OsString::new();
        blob_fname.push(dbfile.file_name().unwrap_or_default());
        blob_fname.push("-blobs");
@@ -120,38 +118,11 @@ impl Context {
        if !blobdir.exists().await {
            async_std::fs::create_dir_all(&blobdir).await?;
        }
-        let context = Context::with_blobdir(dbfile, blobdir, id).await?;
-        Ok(context)
-    }
-
-    /// Opens the database with the given passphrase.
-    ///
-    /// Returns true if passphrase is correct, false is passphrase is not correct. Fails on other
-    /// errors.
-    pub async fn open(&self, passphrase: String) -> Result<bool> {
-        if self.sql.check_passphrase(passphrase.clone()).await? {
-            self.sql.open(self, passphrase).await?;
-            Ok(true)
-        } else {
-            Ok(false)
-        }
-    }
-
-    /// Returns true if database is open.
-    pub async fn is_open(&self) -> bool {
-        self.sql.is_open().await
-    }
-
-    /// Tests the database passphrase.
-    ///
-    /// Returns true if passphrase is correct.
-    ///
-    /// Fails if database is already open.
-    pub(crate) async fn check_passphrase(&self, passphrase: String) -> Result<bool> {
-        self.sql.check_passphrase(passphrase).await
+        Context::with_blobdir(os_name, dbfile, blobdir, id).await
    }

    pub(crate) async fn with_blobdir(
+        os_name: String,
        dbfile: PathBuf,
        blobdir: PathBuf,
        id: u32,
@@ -165,8 +136,11 @@ impl Context {
        let inner = InnerContext {
            id,
            blobdir,
+            dbfile,
+            os_name: Some(os_name),
            running_state: RwLock::new(Default::default()),
-            sql: Sql::new(dbfile),
+            sql: Sql::new(),
+            bob: Default::default(),
            last_smeared_timestamp: RwLock::new(0),
            generating_key_mutex: Mutex::new(()),
            oauth2_mutex: Mutex::new(()),
@@ -174,6 +148,7 @@ impl Context {
            translated_stockstrings: RwLock::new(HashMap::new()),
            events: Events::default(),
            scheduler: RwLock::new(Scheduler::Stopped),
+            ephemeral_task: RwLock::new(None),
            quota: RwLock::new(None),
            creation_time: std::time::SystemTime::now(),
            last_full_folder_scan: Mutex::new(None),
@@ -183,20 +158,24 @@ impl Context {
        let ctx = Context {
            inner: Arc::new(inner),
        };
+        ctx.sql.open(&ctx, &ctx.dbfile, false).await?;

        Ok(ctx)
    }

    /// Starts the IO scheduler.
    pub async fn start_io(&self) {
-        if let Ok(false) = self.is_configured().await {
-            warn!(self, "can not start io on a context that is not configured");
+        info!(self, "starting IO");
+        if self.inner.is_io_running().await {
+            info!(self, "IO is already running");
            return;
        }

-        info!(self, "starting IO");
-        if let Err(err) = self.inner.scheduler.write().await.start(self.clone()).await {
-            error!(self, "Failed to start IO: {}", err)
+        {
+            let l = &mut *self.inner.scheduler.write().await;
+            if let Err(err) = l.start(self.clone()).await {
+                error!(self, "Failed to start IO: {}", err)
+            }
        }
    }

@@ -204,9 +183,7 @@ impl Context {
    pub async fn stop_io(&self) {
        info!(self, "stopping IO");

-        if let Err(err) = self.inner.stop_io().await {
-            warn!(self, "failed to stop IO: {}", err);
-        }
+        self.inner.stop_io().await;
    }

    /// Returns a reference to the underlying SQL instance.
@@ -219,7 +196,7 @@ impl Context {

    /// Returns database file path.
    pub fn get_dbfile(&self) -> &Path {
-        self.sql.dbfile.as_path()
+        self.dbfile.as_path()
    }

    /// Returns blob directory path.
@@ -235,24 +212,6 @@ impl Context {
        });
    }

-    /// Emits a generic MsgsChanged event (without chat or message id)
-    pub fn emit_msgs_changed_without_ids(&self) {
-        self.emit_event(EventType::MsgsChanged {
-            chat_id: ChatId::new(0),
-            msg_id: MsgId::new(0),
-        });
-    }
-
-    /// Emits a MsgsChanged event with specified chat and message ids
-    pub fn emit_msgs_changed(&self, chat_id: ChatId, msg_id: MsgId) {
-        self.emit_event(EventType::MsgsChanged { chat_id, msg_id });
-    }
-
-    /// Emits an IncomingMsg event with specified chat and message ids
-    pub fn emit_incoming_msg(&self, chat_id: ChatId, msg_id: MsgId) {
-        self.emit_event(EventType::IncomingMsg { chat_id, msg_id });
-    }
-
    /// Returns a receiver for emitted events.
    ///
    /// Multiple emitters can be created, but note that in this case each emitted event will
@@ -268,7 +227,7 @@ impl Context {

    // Ongoing process allocation/free/check

-    pub(crate) async fn alloc_ongoing(&self) -> Result<Receiver<()>> {
+    pub async fn alloc_ongoing(&self) -> Result<Receiver<()>> {
        if self.has_ongoing().await {
            bail!("There is already another ongoing process running.");
        }
@@ -284,7 +243,7 @@ impl Context {
        Ok(receiver)
    }

-    pub(crate) async fn free_ongoing(&self) {
+    pub async fn free_ongoing(&self) {
        let s_a = &self.running_state;
        let mut s = s_a.write().await;

@@ -293,7 +252,7 @@ impl Context {
        s.cancel_sender.take();
    }

-    pub(crate) async fn has_ongoing(&self) -> bool {
+    pub async fn has_ongoing(&self) -> bool {
        let s_a = &self.running_state;
        let s = s_a.read().await;

@@ -318,7 +277,7 @@ impl Context {
        };
    }

-    pub(crate) async fn shall_stop_ongoing(&self) -> bool {
+    pub async fn shall_stop_ongoing(&self) -> bool {
        self.running_state.read().await.shall_stop_ongoing
    }

@@ -328,9 +287,8 @@ impl Context {

    pub async fn get_info(&self) -> Result<BTreeMap<&'static str, String>> {
        let unset = "0";
-        let l = LoginParam::load_candidate_params(self).await?;
-        let l2 = LoginParam::load_configured_params(self).await?;
-        let secondary_addrs = self.get_secondary_self_addrs().await?.join(", ");
+        let l = LoginParam::from_database(self, "").await?;
+        let l2 = LoginParam::from_database(self, "configured_").await?;
        let displayname = self.get_config(Config::Displayname).await?;
        let chats = get_chat_cnt(self).await? as usize;
        let unblocked_msgs = message::get_unblocked_msg_cnt(self).await as usize;
@@ -349,6 +307,7 @@ impl Context {
            .await?
            .unwrap_or_else(|| "unknown".to_string());
        let e2ee_enabled = self.get_config_int(Config::E2eeEnabled).await?;
+        let e2ee_force = self.get_config_int(Config::E2eeForce).await?;
        let mdns_enabled = self.get_config_int(Config::MdnsEnabled).await?;
        let bcc_self = self.get_config_int(Config::BccSelf).await?;
        let send_sync_msgs = self.get_config_int(Config::SendSyncMsgs).await?;
@@ -367,9 +326,11 @@ impl Context {
            Err(err) => format!("<key failure: {}>", err),
        };

+        let inbox_watch = self.get_config_int(Config::InboxWatch).await?;
        let sentbox_watch = self.get_config_int(Config::SentboxWatch).await?;
+        let mvbox_watch = self.get_config_int(Config::MvboxWatch).await?;
        let mvbox_move = self.get_config_int(Config::MvboxMove).await?;
-        let only_fetch_mvbox = self.get_config_int(Config::OnlyFetchMvbox).await?;
+        let sentbox_move = self.get_config_int(Config::SentboxMove).await?;
        let folders_configured = self
            .sql
            .get_raw_config_int("folders_configured")
@@ -395,13 +356,6 @@ impl Context {
        res.insert("number_of_contacts", contacts.to_string());
        res.insert("database_dir", self.get_dbfile().display().to_string());
        res.insert("database_version", dbversion.to_string());
-        res.insert(
-            "database_encrypted",
-            self.sql
-                .is_encrypted()
-                .await
-                .map_or_else(|| "closed".to_string(), |b| b.to_string()),
-        );
        res.insert("journal_mode", journal_mode);
        res.insert("blobdir", self.get_blobdir().display().to_string());
        res.insert("display_name", displayname.unwrap_or_else(|| unset.into()));
@@ -415,7 +369,6 @@ impl Context {
        res.insert("socks5_enabled", socks5_enabled.to_string());
        res.insert("entered_account_settings", l.to_string());
        res.insert("used_account_settings", l2.to_string());
-        res.insert("secondary_addrs", secondary_addrs);
        res.insert(
            "fetch_existing_msgs",
            self.get_config_int(Config::FetchExistingMsgs)
@@ -432,14 +385,17 @@ impl Context {
                .await?
                .to_string(),
        );
+        res.insert("inbox_watch", inbox_watch.to_string());
        res.insert("sentbox_watch", sentbox_watch.to_string());
+        res.insert("mvbox_watch", mvbox_watch.to_string());
        res.insert("mvbox_move", mvbox_move.to_string());
-        res.insert("only_fetch_mvbox", only_fetch_mvbox.to_string());
+        res.insert("sentbox_move", sentbox_move.to_string());
        res.insert("folders_configured", folders_configured.to_string());
        res.insert("configured_sentbox_folder", configured_sentbox_folder);
        res.insert("configured_mvbox_folder", configured_mvbox_folder);
        res.insert("mdns_enabled", mdns_enabled.to_string());
        res.insert("e2ee_enabled", e2ee_enabled.to_string());
+        res.insert("e2ee_force", e2ee_force.to_string());
        res.insert(
            "key_gen_type",
            self.get_config_int(Config::KeyGenType).await?.to_string(),
@@ -622,14 +578,19 @@ impl Context {
        Ok(mvbox.as_deref() == Some(folder_name))
    }

-    pub(crate) fn derive_blobdir(dbfile: &PathBuf) -> PathBuf {
+    pub async fn is_spam_folder(&self, folder_name: &str) -> Result<bool> {
+        let spam = self.get_config(Config::ConfiguredSpamFolder).await?;
+        Ok(spam.as_deref() == Some(folder_name))
+    }
+
+    pub fn derive_blobdir(dbfile: &PathBuf) -> PathBuf {
        let mut blob_fname = OsString::new();
        blob_fname.push(dbfile.file_name().unwrap_or_default());
        blob_fname.push("-blobs");
        dbfile.with_file_name(blob_fname)
    }

-    pub(crate) fn derive_walfile(dbfile: &PathBuf) -> PathBuf {
+    pub fn derive_walfile(dbfile: &PathBuf) -> PathBuf {
        let mut wal_fname = OsString::new();
        wal_fname.push(dbfile.file_name().unwrap_or_default());
        wal_fname.push("-wal");
@@ -638,9 +599,25 @@ impl Context {
 }

 impl InnerContext {
-    async fn stop_io(&self) -> Result<()> {
-        self.scheduler.write().await.stop().await?;
-        Ok(())
+    async fn is_io_running(&self) -> bool {
+        self.scheduler.read().await.is_running()
+    }
+
+    async fn stop_io(&self) {
+        if self.is_io_running().await {
+            let token = {
+                let lock = &*self.scheduler.read().await;
+                lock.pre_stop().await
+            };
+            {
+                let lock = &mut *self.scheduler.write().await;
+                lock.stop(token).await;
+            }
+        }
+
+        if let Some(ephemeral_task) = self.ephemeral_task.write().await.take() {
+            ephemeral_task.cancel().await;
+        }
    }
 }

@@ -665,26 +642,21 @@ mod tests {
    use crate::chat::{
        get_chat_contacts, get_chat_msgs, send_msg, set_muted, Chat, ChatId, MuteDuration,
    };
-    use crate::contact::ContactId;
+    use crate::constants::{Viewtype, DC_CONTACT_ID_SELF};
    use crate::dc_receive_imf::dc_receive_imf;
    use crate::dc_tools::dc_create_outgoing_rfc724_mid;
-    use crate::message::{Message, Viewtype};
+    use crate::message::Message;
    use crate::test_utils::TestContext;
-    use anyhow::Context as _;
    use std::time::Duration;
    use strum::IntoEnumIterator;
-    use tempfile::tempdir;

    #[async_std::test]
-    async fn test_wrong_db() -> Result<()> {
-        let tmp = tempfile::tempdir()?;
+    async fn test_wrong_db() {
+        let tmp = tempfile::tempdir().unwrap();
        let dbfile = tmp.path().join("db.sqlite");
-        std::fs::write(&dbfile, b"123")?;
-        let res = Context::new(dbfile.into(), 1).await?;
-
-        // Broken database is indistinguishable from encrypted one.
-        assert_eq!(res.is_open().await, false);
-        Ok(())
+        std::fs::write(&dbfile, b"123").unwrap();
+        let res = Context::new("FakeOs".into(), dbfile.into(), 1).await;
+        assert!(res.is_err());
    }

    #[async_std::test]
@@ -701,7 +673,7 @@ mod tests {
            .unwrap();
        let msg = format!(
            "From: {}\n\
-             To: alice@example.org\n\
+             To: alice@example.com\n\
             Message-ID: <{}>\n\
             Chat-Version: 1.0\n\
             Date: Sun, 22 Mar 2020 22:37:57 +0000\n\
@@ -711,7 +683,9 @@ mod tests {
            dc_create_outgoing_rfc724_mid(None, contact.get_addr())
        );
        println!("{}", msg);
-        dc_receive_imf(t, msg.as_bytes(), false).await.unwrap();
+        dc_receive_imf(t, msg.as_bytes(), "INBOX", 1, false)
+            .await
+            .unwrap();
    }

    #[async_std::test]
@@ -832,7 +806,9 @@ mod tests {
    async fn test_blobdir_exists() {
        let tmp = tempfile::tempdir().unwrap();
        let dbfile = tmp.path().join("db.sqlite");
-        Context::new(dbfile.into(), 1).await.unwrap();
+        Context::new("FakeOS".into(), dbfile.into(), 1)
+            .await
+            .unwrap();
        let blobdir = tmp.path().join("db.sqlite-blobs");
        assert!(blobdir.is_dir());
    }
@@ -843,7 +819,7 @@ mod tests {
        let dbfile = tmp.path().join("db.sqlite");
        let blobdir = tmp.path().join("db.sqlite-blobs");
        std::fs::write(&blobdir, b"123").unwrap();
-        let res = Context::new(dbfile.into(), 1).await;
+        let res = Context::new("FakeOS".into(), dbfile.into(), 1).await;
        assert!(res.is_err());
    }

@@ -853,7 +829,9 @@ mod tests {
        let subdir = tmp.path().join("subdir");
        let dbfile = subdir.join("db.sqlite");
        let dbfile2 = dbfile.clone();
-        Context::new(dbfile.into(), 1).await.unwrap();
+        Context::new("FakeOS".into(), dbfile.into(), 1)
+            .await
+            .unwrap();
        assert!(subdir.is_dir());
        assert!(dbfile2.is_file());
    }
@@ -863,7 +841,7 @@ mod tests {
        let tmp = tempfile::tempdir().unwrap();
        let dbfile = tmp.path().join("db.sqlite");
        let blobdir = PathBuf::new();
-        let res = Context::with_blobdir(dbfile.into(), blobdir, 1).await;
+        let res = Context::with_blobdir("FakeOS".into(), dbfile.into(), blobdir, 1).await;
        assert!(res.is_err());
    }

@@ -872,7 +850,7 @@ mod tests {
        let tmp = tempfile::tempdir().unwrap();
        let dbfile = tmp.path().join("db.sqlite");
        let blobdir = tmp.path().join("blobs");
-        let res = Context::with_blobdir(dbfile.into(), blobdir.into(), 1).await;
+        let res = Context::with_blobdir("FakeOS".into(), dbfile.into(), blobdir.into(), 1).await;
        assert!(res.is_err());
    }

@@ -949,7 +927,7 @@ mod tests {
    #[async_std::test]
    async fn test_search_msgs() -> Result<()> {
        let alice = TestContext::new_alice().await;
-        let self_talk = ChatId::create_for_contact(&alice, ContactId::SELF).await?;
+        let self_talk = ChatId::create_for_contact(&alice, DC_CONTACT_ID_SELF).await?;
        let chat = alice
            .create_chat_with_contact("Bob", "bob@example.org")
            .await;
@@ -1034,29 +1012,4 @@ mod tests {

        Ok(())
    }
-
-    #[async_std::test]
-    async fn test_check_passphrase() -> Result<()> {
-        let dir = tempdir()?;
-        let dbfile = dir.path().join("db.sqlite");
-
-        let id = 1;
-        let context = Context::new_closed(dbfile.clone().into(), id)
-            .await
-            .context("failed to create context")?;
-        assert_eq!(context.open("foo".to_string()).await?, true);
-        assert_eq!(context.is_open().await, true);
-        drop(context);
-
-        let id = 2;
-        let context = Context::new(dbfile.into(), id)
-            .await
-            .context("failed to create context")?;
-        assert_eq!(context.is_open().await, false);
-        assert_eq!(context.check_passphrase("bar".to_string()).await?, false);
-        assert_eq!(context.open("false".to_string()).await?, false);
-        assert_eq!(context.open("foo".to_string()).await?, true);
-
-        Ok(())
-    }
 }
--- a/src/dc_receive_imf.rs
+++ b/src/dc_receive_imf.rs
--- a/src/dc_tools.rs
+++ b/src/dc_tools.rs
@@ -5,7 +5,6 @@ use core::cmp::{max, min};
 use std::borrow::Cow;
 use std::fmt;
 use std::io::Cursor;
-use std::str::from_utf8;
 use std::str::FromStr;
 use std::time::{Duration, SystemTime};

@@ -13,18 +12,15 @@ use async_std::path::{Path, PathBuf};
 use async_std::prelude::*;
 use async_std::{fs, io};

-use anyhow::Error;
+use anyhow::{bail, Error};
 use chrono::{Local, TimeZone};
-use mailparse::dateparse;
-use mailparse::headers::Headers;
-use mailparse::MailHeaderMap;
 use rand::{thread_rng, Rng};

 use crate::chat::{add_device_msg, add_device_msg_with_importance};
-use crate::constants::{DC_ELLIPSIS, DC_OUTDATED_WARNING_DAYS};
+use crate::constants::{Viewtype, DC_ELLIPSIS, DC_OUTDATED_WARNING_DAYS};
 use crate::context::Context;
 use crate::events::EventType;
-use crate::message::{Message, Viewtype};
+use crate::message::Message;
 use crate::provider::get_provider_update_timestamp;
 use crate::stock_str;

@@ -71,7 +67,7 @@ pub(crate) fn dc_gm2local_offset() -> i64 {
    /* returns the offset that must be _added_ to an UTC/GMT-time to create the localtime.
    the function may return negative values. */
    let lt = Local::now();
-    i64::from(lt.offset().local_minus_utc())
+    lt.offset().local_minus_utc() as i64
 }

 // timesmearing
@@ -86,7 +82,7 @@ pub(crate) fn dc_gm2local_offset() -> i64 {
 //   `last_smeared_timestamp` is again in sync with the normal time.
 // - however, we do not do all this for the far future,
 //   but at max `MAX_SECONDS_TO_LEND_FROM_FUTURE`
-pub(crate) const MAX_SECONDS_TO_LEND_FROM_FUTURE: i64 = 5;
+const MAX_SECONDS_TO_LEND_FROM_FUTURE: i64 = 5;

 /// Returns the current smeared timestamp,
 ///
@@ -195,29 +191,44 @@ async fn maybe_warn_on_outdated(context: &Context, now: i64, approx_compile_time
 }

 /* Message-ID tools */
-
-/// Generate an ID. The generated ID should be as short and as unique as possible:
-/// - short, because it may also used as part of Message-ID headers or in QR codes
-/// - unique as two IDs generated on two devices should not be the same. However, collisions are not world-wide but only by the few contacts.
-/// IDs generated by this function are 66 bit wide and are returned as 11 base64 characters.
-///
-/// Additional information when used as a message-id or group-id:
-/// - for OUTGOING messages this ID is written to the header as `Chat-Group-ID:` and is added to the message ID as Gr.<grpid>.<random>@<random>
-/// - for INCOMING messages, the ID is taken from the Chat-Group-ID-header or from the Message-ID in the In-Reply-To: or References:-Header
-/// - the group-id should be a string with the characters [a-zA-Z0-9\-_]
 pub(crate) fn dc_create_id() -> String {
-    // ThreadRng implements CryptoRng trait and is supposed to be cryptographically secure.
+    /* generate an id. the generated ID should be as short and as unique as possible:
+    - short, because it may also used as part of Message-ID headers or in QR codes
+    - unique as two IDs generated on two devices should not be the same. However, collisions are not world-wide but only by the few contacts.
+    IDs generated by this function are 66 bit wide and are returned as 11 base64 characters.
+    If possible, RNG of OpenSSL is used.
+
+    Additional information when used as a message-id or group-id:
+    - for OUTGOING messages this ID is written to the header as `Chat-Group-ID:` and is added to the message ID as Gr.<grpid>.<random>@<random>
+    - for INCOMING messages, the ID is taken from the Chat-Group-ID-header or from the Message-ID in the In-Reply-To: or References:-Header
+    - the group-id should be a string with the characters [a-zA-Z0-9\-_] */
+
    let mut rng = thread_rng();
+    let buf: [u32; 3] = [rng.gen(), rng.gen(), rng.gen()];

-    // Generate 72 random bits.
-    let mut arr = [0u8; 9];
-    rng.fill(&mut arr[..]);
+    encode_66bits_as_base64(buf[0usize], buf[1usize], buf[2usize])
+}

-    // Take 11 base64 characters containing 66 random bits.
-    base64::encode_config(&arr, base64::URL_SAFE)
-        .chars()
-        .take(11)
-        .collect()
+/// Encode 66 bits as a base64 string.
+/// This is useful for ID generating with short strings as we save 5 character
+/// in each id compared to 64 bit hex encoding. For a typical group ID, these
+/// are 10 characters (grpid+msgid):
+///    hex:    64 bit, 4 bits/character, length = 64/4 = 16 characters
+///    base64: 64 bit, 6 bits/character, length = 64/6 = 11 characters (plus 2 additional bits)
+/// Only the lower 2 bits of `fill` are used.
+fn encode_66bits_as_base64(v1: u32, v2: u32, fill: u32) -> String {
+    use byteorder::{BigEndian, WriteBytesExt};
+
+    let mut wrapped_writer = Vec::new();
+    {
+        let mut enc = base64::write::EncoderWriter::new(&mut wrapped_writer, base64::URL_SAFE);
+        enc.write_u32::<BigEndian>(v1).unwrap();
+        enc.write_u32::<BigEndian>(v2).unwrap();
+        enc.write_u8(((fill & 0x3) as u8) << 6).unwrap();
+        enc.finish().unwrap();
+    }
+    assert_eq!(wrapped_writer.pop(), Some(b'A')); // Remove last "A"
+    String::from_utf8(wrapped_writer).unwrap()
 }

 /// Function generates a Message-ID that can be used for a new outgoing message.
@@ -339,6 +350,63 @@ pub async fn dc_delete_files_in_dir(context: &Context, path: impl AsRef<Path>) {
    }
 }

+pub(crate) async fn dc_copy_file(
+    context: &Context,
+    src_path: impl AsRef<Path>,
+    dest_path: impl AsRef<Path>,
+) -> bool {
+    let src_abs = dc_get_abs_path(context, &src_path);
+    let mut src_file = match fs::File::open(&src_abs).await {
+        Ok(file) => file,
+        Err(err) => {
+            warn!(
+                context,
+                "failed to open for read '{}': {}",
+                src_abs.display(),
+                err
+            );
+            return false;
+        }
+    };
+
+    let dest_abs = dc_get_abs_path(context, &dest_path);
+    let mut dest_file = match fs::OpenOptions::new()
+        .create_new(true)
+        .write(true)
+        .open(&dest_abs)
+        .await
+    {
+        Ok(file) => file,
+        Err(err) => {
+            warn!(
+                context,
+                "failed to open for write '{}': {}",
+                dest_abs.display(),
+                err
+            );
+            return false;
+        }
+    };
+
+    match io::copy(&mut src_file, &mut dest_file).await {
+        Ok(_) => true,
+        Err(err) => {
+            error!(
+                context,
+                "Cannot copy \"{}\" to \"{}\": {}",
+                src_abs.display(),
+                dest_abs.display(),
+                err
+            );
+            {
+                // Attempt to remove the failed file, swallow errors resulting from that.
+                fs::remove_file(dest_abs).await.ok();
+            }
+            false
+        }
+    }
+}
+
 pub(crate) async fn dc_create_folder(
    context: &Context,
    path: impl AsRef<Path>,
@@ -436,6 +504,33 @@ pub fn dc_open_file_std<P: AsRef<std::path::Path>>(
    }
 }

+/// Returns Ok((temp_path, dest_path)) on success. The backup can then be written to temp_path. If the backup succeeded,
+/// it can be renamed to dest_path. This guarantees that the backup is complete.
+pub(crate) async fn get_next_backup_path(
+    folder: impl AsRef<Path>,
+    backup_time: i64,
+) -> Result<(PathBuf, PathBuf), Error> {
+    let folder = PathBuf::from(folder.as_ref());
+    let stem = chrono::NaiveDateTime::from_timestamp(backup_time, 0)
+        // Don't change this file name format, in has_backup() we use string comparison to determine which backup is newer:
+        .format("delta-chat-backup-%Y-%m-%d")
+        .to_string();
+
+    // 64 backup files per day should be enough for everyone
+    for i in 0..64 {
+        let mut tempfile = folder.clone();
+        tempfile.push(format!("{}-{:02}.tar.part", stem, i));
+
+        let mut destfile = folder.clone();
+        destfile.push(format!("{}-{:02}.tar", stem, i));
+
+        if !tempfile.exists().await && !destfile.exists().await {
+            return Ok((tempfile, destfile));
+        }
+    }
+    bail!("could not create backup file, disk full?");
+}
+
 pub(crate) fn time() -> i64 {
    SystemTime::now()
        .duration_since(SystemTime::UNIX_EPOCH)
@@ -537,8 +632,8 @@ impl rusqlite::types::ToSql for EmailAddress {
 /// Makes sure that a user input that is not supposed to contain newlines does not contain newlines.
 pub(crate) fn improve_single_line_input(input: &str) -> String {
    input
-        .replace('\n', " ")
-        .replace('\r', " ")
+        .replace("\n", " ")
+        .replace("\r", " ")
        .trim()
        .to_string()
 }
@@ -575,144 +670,13 @@ pub fn remove_subject_prefix(last_subject: &str) -> String {
        .to_string()
 }

-// Types and methods to create hop-info for message-info
-
-fn extract_address_from_receive_header<'a>(header: &'a str, start: &str) -> Option<&'a str> {
-    let header_len = header.len();
-    header.find(start).and_then(|mut begin| {
-        begin += start.len();
-        let end = header
-            .get(begin..)?
-            .find(|c: char| c.is_whitespace())
-            .unwrap_or(header_len);
-        header.get(begin..begin + end)
-    })
-}
-
-pub(crate) fn parse_receive_header(header: &str) -> String {
-    let header = header.replace(&['\r', '\n'][..], "");
-    let mut hop_info = String::from("Hop: ");
-
-    if let Some(from) = extract_address_from_receive_header(&header, "from ") {
-        hop_info += &format!("From: {}; ", from.trim());
-    }
-
-    if let Some(by) = extract_address_from_receive_header(&header, "by ") {
-        hop_info += &format!("By: {}; ", by.trim());
-    }
-
-    if let Ok(date) = dateparse(&header) {
-        // In tests, use the UTC timezone so that the test is reproducible
-        #[cfg(test)]
-        let date_obj = chrono::Utc.timestamp(date, 0);
-        #[cfg(not(test))]
-        let date_obj = Local.timestamp(date, 0);
-
-        hop_info += &format!("Date: {}", date_obj.to_rfc2822());
-    };
-
-    hop_info
-}
-
-/// parses "receive"-headers
-pub(crate) fn parse_receive_headers(headers: &Headers) -> String {
-    headers
-        .get_all_headers("Received")
-        .iter()
-        .rev()
-        .filter_map(|header_map_item| from_utf8(header_map_item.get_value_raw()).ok())
-        .map(parse_receive_header)
-        .collect::<Vec<_>>()
-        .join("\n")
-}
-
 #[cfg(test)]
 mod tests {
    #![allow(clippy::indexing_slicing)]

    use super::*;

-    use crate::{
-        config::Config, dc_receive_imf::dc_receive_imf, message::get_msg_info,
-        test_utils::TestContext,
-    };
-
-    #[test]
-    fn test_parse_receive_headers() {
-        // Test `parse_receive_headers()` with some more-or-less random emails from the test-data
-        let raw = include_bytes!("../test-data/message/mail_with_cc.txt");
-        let expected =
-            "Hop: From: localhost; By: hq5.merlinux.eu; Date: Sat, 14 Sep 2019 17:00:22 +0000\n\
-             Hop: From: hq5.merlinux.eu; By: hq5.merlinux.eu; Date: Sat, 14 Sep 2019 17:00:25 +0000";
-        check_parse_receive_headers(raw, expected);
-
-        let raw = include_bytes!("../test-data/message/wrong-html.eml");
-        let expected =
-            "Hop: From: oxbsltgw18.schlund.de; By: mrelayeu.kundenserver.de; Date: Thu, 06 Aug 2020 16:40:31 +0000\n\
-             Hop: From: mout.kundenserver.de; By: dd37930.kasserver.com; Date: Thu, 06 Aug 2020 16:40:32 +0000";
-        check_parse_receive_headers(raw, expected);
-
-        let raw = include_bytes!("../test-data/message/posteo_ndn.eml");
-        let expected =
-            "Hop: By: mout01.posteo.de; Date: Tue, 09 Jun 2020 18:44:22 +0000\n\
-             Hop: From: mout01.posteo.de; By: mx04.posteo.de; Date: Tue, 09 Jun 2020 18:44:22 +0000\n\
-             Hop: From: mx04.posteo.de; By: mailin06.posteo.de; Date: Tue, 09 Jun 2020 18:44:23 +0000\n\
-             Hop: From: mailin06.posteo.de; By: proxy02.posteo.de; Date: Tue, 09 Jun 2020 18:44:23 +0000\n\
-             Hop: From: proxy02.posteo.de; By: proxy02.posteo.name; Date: Tue, 09 Jun 2020 18:44:23 +0000\n\
-             Hop: From: proxy02.posteo.name; By: dovecot03.posteo.local; Date: Tue, 09 Jun 2020 18:44:24 +0000";
-        check_parse_receive_headers(raw, expected);
-    }
-
-    fn check_parse_receive_headers(raw: &[u8], expected: &str) {
-        let mail = mailparse::parse_mail(raw).unwrap();
-        let hop_info = parse_receive_headers(&mail.get_headers());
-        assert_eq!(hop_info, expected)
-    }
-
-    #[async_std::test]
-    async fn test_parse_receive_headers_integration() {
-        let raw = include_bytes!("../test-data/message/mail_with_cc.txt");
-        let expected = r"State: Fresh
-
-hi
-
-Message-ID: 2dfdbde7@example.org
-
-Hop: From: localhost; By: hq5.merlinux.eu; Date: Sat, 14 Sep 2019 17:00:22 +0000
-Hop: From: hq5.merlinux.eu; By: hq5.merlinux.eu; Date: Sat, 14 Sep 2019 17:00:25 +0000";
-        check_parse_receive_headers_integration(raw, expected).await;
-
-        let raw = include_bytes!("../test-data/message/encrypted_with_received_headers.eml");
-        let expected = "State: Fresh, Encrypted
-
-Re: Message from alice@example.org
-
-hi back\r\n\
-\r\n\
-- \r\n\
-Sent with my Delta Chat Messenger: https://delta.chat
-
-Message-ID: Mr.adQpEwndXLH.LPDdlFVJ7wG@example.net
-
-Hop: From: [127.0.0.1]; By: mail.example.org; Date: Mon, 27 Dec 2021 11:21:21 +0000
-Hop: From: mout.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22 +0000
-Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22 +0000";
-        check_parse_receive_headers_integration(raw, expected).await;
-    }
-
-    async fn check_parse_receive_headers_integration(raw: &[u8], expected: &str) {
-        let t = TestContext::new_alice().await;
-        t.set_config(Config::ShowEmails, Some("2")).await.unwrap();
-        dc_receive_imf(&t, raw, false).await.unwrap();
-        let msg = t.get_last_msg().await;
-        let msg_info = get_msg_info(&t, msg.id).await.unwrap();
-
-        // Ignore the first rows of the msg_info because they contain a
-        // received time that depends on the test time which makes it impossible to
-        // compare with a static string
-        let capped_result = &msg_info[msg_info.find("State").unwrap()..];
-        assert_eq!(expected, capped_result);
-    }
+    use crate::test_utils::TestContext;

    #[test]
    fn test_rust_ftoa() {
@@ -766,12 +730,23 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22
    }

    #[test]
-    fn test_dc_create_id_invalid_chars() {
-        for _ in 1..1000 {
-            let buf = dc_create_id();
-            assert!(!buf.contains('/')); // `/` must not be used to be URL-safe
-            assert!(!buf.contains('.')); // `.` is used as a delimiter when extracting grpid from Message-ID
-        }
+    fn test_encode_66bits_as_base64() {
+        assert_eq!(
+            encode_66bits_as_base64(0x01234567, 0x89abcdef, 0),
+            "ASNFZ4mrze8"
+        );
+        assert_eq!(
+            encode_66bits_as_base64(0x01234567, 0x89abcdef, 1),
+            "ASNFZ4mrze9"
+        );
+        assert_eq!(
+            encode_66bits_as_base64(0x01234567, 0x89abcdef, 2),
+            "ASNFZ4mrze-"
+        );
+        assert_eq!(
+            encode_66bits_as_base64(0x01234567, 0x89abcdef, 3),
+            "ASNFZ4mrze_"
+        );
    }

    #[test]
@@ -915,7 +890,20 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22

        assert!(dc_file_exist!(context, &abs_path).await);

+        assert!(dc_copy_file(context, "$BLOBDIR/foobar", "$BLOBDIR/dada").await);
+
+        // attempting to copy a second time should fail
+        assert!(!dc_copy_file(context, "$BLOBDIR/foobar", "$BLOBDIR/dada").await);
+
+        assert_eq!(dc_get_filebytes(context, "$BLOBDIR/dada").await, 7);
+
+        let buf = dc_read_file(context, "$BLOBDIR/dada").await.unwrap();
+
+        assert_eq!(buf.len(), 7);
+        assert_eq!(&buf, b"content");
+
        assert!(dc_delete_file(context, "$BLOBDIR/foobar").await);
+        assert!(dc_delete_file(context, "$BLOBDIR/dada").await);
        assert!(dc_create_folder(context, "$BLOBDIR/foobar-folder")
            .await
            .is_ok());
@@ -1041,7 +1029,7 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22
        maybe_warn_on_bad_time(&t, timestamp_past, get_provider_update_timestamp()).await;
        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert_eq!(chats.len(), 1);
-        let device_chat_id = chats.get_chat_id(0).unwrap();
+        let device_chat_id = chats.get_chat_id(0);
        let msgs = chat::get_chat_msgs(&t, device_chat_id, 0, None)
            .await
            .unwrap();
@@ -1079,7 +1067,7 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22
        .await;
        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert_eq!(chats.len(), 1);
-        assert_eq!(device_chat_id, chats.get_chat_id(0).unwrap());
+        assert_eq!(device_chat_id, chats.get_chat_id(0));
        let msgs = chat::get_chat_msgs(&t, device_chat_id, 0, None)
            .await
            .unwrap();
@@ -1111,7 +1099,7 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22
        .await;
        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert_eq!(chats.len(), 1);
-        let device_chat_id = chats.get_chat_id(0).unwrap();
+        let device_chat_id = chats.get_chat_id(0);
        let msgs = chat::get_chat_msgs(&t, device_chat_id, 0, None)
            .await
            .unwrap();
@@ -1133,7 +1121,7 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22
        .await;
        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert_eq!(chats.len(), 1);
-        let device_chat_id = chats.get_chat_id(0).unwrap();
+        let device_chat_id = chats.get_chat_id(0);
        let msgs = chat::get_chat_msgs(&t, device_chat_id, 0, None)
            .await
            .unwrap();
@@ -1150,7 +1138,7 @@ Hop: From: hq5.example.org; By: hq5.example.org; Date: Mon, 27 Dec 2021 11:21:22
        .await;
        let chats = Chatlist::try_load(&t, 0, None, None).await.unwrap();
        assert_eq!(chats.len(), 1);
-        let device_chat_id = chats.get_chat_id(0).unwrap();
+        let device_chat_id = chats.get_chat_id(0);
        let msgs = chat::get_chat_msgs(&t, device_chat_id, 0, None)
            .await
            .unwrap();
--- a/src/dehtml.rs
+++ b/src/dehtml.rs
@@ -36,9 +36,9 @@ impl Dehtml {
            ""
        }
    }
-    fn append_prefix(&self, line_end: &str) -> String {
+    fn append_prefix(&self, line_end: impl AsRef<str>) -> String {
        // line_end is e.g. "\n\n". We add "> " if necessary.
-        line_end.to_string() + self.line_prefix()
+        line_end.as_ref().to_owned() + self.line_prefix()
    }
    fn get_add_text(&self) -> AddText {
        if self.divs_since_quote_div > 0 && self.divs_since_quoted_content_div == 0 {
--- a/src/download.rs
+++ b/src/download.rs
@@ -3,14 +3,14 @@
 use anyhow::{anyhow, Result};
 use deltachat_derive::{FromSql, ToSql};
 use serde::{Deserialize, Serialize};
-use std::collections::BTreeMap;

 use crate::config::Config;
+use crate::constants::Viewtype;
 use crate::context::Context;
 use crate::dc_tools::time;
 use crate::imap::{Imap, ImapActionResult};
 use crate::job::{self, Action, Job, Status};
-use crate::message::{Message, MsgId, Viewtype};
+use crate::message::{Message, MsgId};
 use crate::mimeparser::{MimeMessage, Part};
 use crate::param::Params;
 use crate::{job_try, stock_str, EventType};
@@ -129,48 +129,24 @@ impl Job {
        }

        let msg = job_try!(Message::load_from_db(context, MsgId::new(self.foreign_id)).await);
-        let row = job_try!(
-            context
-                .sql
-                .query_row_optional(
-                    "SELECT uid, folder FROM imap WHERE rfc724_mid=? AND target!=''",
-                    paramsv![msg.rfc724_mid],
-                    |row| {
-                        let server_uid: u32 = row.get(0)?;
-                        let server_folder: String = row.get(1)?;
-                        Ok((server_uid, server_folder))
-                    }
-                )
-                .await
-        );
-
-        if let Some((server_uid, server_folder)) = row {
-            match imap
-                .fetch_single_msg(context, &server_folder, server_uid, msg.rfc724_mid.clone())
-                .await
-            {
-                ImapActionResult::RetryLater | ImapActionResult::Failed => {
-                    job_try!(
-                        msg.id
-                            .update_download_state(context, DownloadState::Failure)
-                            .await
-                    );
-                    Status::Finished(Err(anyhow!("Call download_full() again to try over.")))
-                }
-                ImapActionResult::Success => {
-                    // update_download_state() not needed as receive_imf() already
-                    // set the state and emitted the event.
-                    Status::Finished(Ok(()))
-                }
+        let server_folder = msg.server_folder.unwrap_or_default();
+        match imap
+            .fetch_single_msg(context, &server_folder, msg.server_uid)
+            .await
+        {
+            ImapActionResult::RetryLater | ImapActionResult::Failed => {
+                job_try!(
+                    msg.id
+                        .update_download_state(context, DownloadState::Failure)
+                        .await
+                );
+                Status::Finished(Err(anyhow!("Call download_full() again to try over.")))
+            }
+            ImapActionResult::Success | ImapActionResult::AlreadyDone => {
+                // update_download_state() not needed as receive_imf() already
+                // set the state and emitted the event.
+                Status::Finished(Ok(()))
            }
-        } else {
-            // No IMAP record found, we don't know the UID and folder.
-            job_try!(
-                msg.id
-                    .update_download_state(context, DownloadState::Failure)
-                    .await
-            );
-            Status::Finished(Err(anyhow!("Call download_full() again to try over.")))
        }
    }
 }
@@ -185,7 +161,6 @@ impl Imap {
        context: &Context,
        folder: &str,
        uid: u32,
-        rfc724_mid: String,
    ) -> ImapActionResult {
        if let Some(imapresult) = self
            .prepare_imap_operation_on_msg(context, folder, uid)
@@ -197,20 +172,14 @@ impl Imap {
        // we are connected, and the folder is selected
        info!(context, "Downloading message {}/{} fully...", folder, uid);

-        let mut uid_message_ids: BTreeMap<u32, String> = BTreeMap::new();
-        uid_message_ids.insert(uid, rfc724_mid);
-        let (last_uid, _received) = match self
-            .fetch_many_msgs(context, folder, vec![uid], &uid_message_ids, false, false)
-            .await
-        {
-            Ok(res) => res,
-            Err(_) => return ImapActionResult::Failed,
-        };
-        if last_uid.is_none() {
-            ImapActionResult::Failed
-        } else {
-            ImapActionResult::Success
+        let (_, error_cnt) = self
+            .fetch_many_msgs(context, folder, vec![uid], false, false)
+            .await;
+        if error_cnt > 0 {
+            return ImapActionResult::Failed;
        }
+
+        ImapActionResult::Success
    }
 }

@@ -254,15 +223,13 @@ impl MimeMessage {

 #[cfg(test)]
 mod tests {
-    use num_traits::FromPrimitive;
-
+    use super::*;
    use crate::chat::send_msg;
+    use crate::constants::Viewtype;
    use crate::dc_receive_imf::dc_receive_imf_inner;
    use crate::ephemeral::Timer;
-    use crate::message::Viewtype;
    use crate::test_utils::TestContext;
-
-    use super::*;
+    use num_traits::FromPrimitive;

    #[test]
    fn test_downloadstate_values() {
@@ -344,8 +311,9 @@ mod tests {

        dc_receive_imf_inner(
            &t,
-            "Mr.12345678901@example.com",
            header.as_bytes(),
+            "INBOX",
+            1,
            false,
            Some(100000),
            false,
@@ -361,8 +329,9 @@ mod tests {

        dc_receive_imf_inner(
            &t,
-            "Mr.12345678901@example.com",
            format!("{}\n\n100k text...", header).as_bytes(),
+            "INBOX",
+            1,
            false,
            None,
            false,
@@ -390,14 +359,15 @@ mod tests {
        // download message from bob partially, this must not change the ephemeral timer
        dc_receive_imf_inner(
            &t,
-            "first@example.org",
            b"From: Bob <bob@example.org>\n\
-                    To: Alice <alice@example.org>\n\
+                    To: Alice <alice@example.com>\n\
                    Chat-Version: 1.0\n\
                    Subject: subject\n\
                    Message-ID: <first@example.org>\n\
                    Date: Sun, 14 Nov 2021 00:10:00 +0000\
                    Content-Type: text/plain",
+            "INBOX",
+            1,
            false,
            Some(100000),
            false,
--- a/src/e2ee.rs
+++ b/src/e2ee.rs
@@ -2,7 +2,7 @@

 use std::collections::HashSet;

-use anyhow::{format_err, Context as _, Result};
+use anyhow::{bail, ensure, format_err, Result};
 use mailparse::ParsedMail;
 use num_traits::FromPrimitive;

@@ -19,6 +19,7 @@ use crate::pgp;
 #[derive(Debug)]
 pub struct EncryptHelper {
    pub prefer_encrypt: EncryptPreference,
+    force_preference: bool,
    pub addr: String,
    pub public_key: SignedPublicKey,
 }
@@ -28,11 +29,19 @@ impl EncryptHelper {
        let prefer_encrypt =
            EncryptPreference::from_i32(context.get_config_int(Config::E2eeEnabled).await?)
                .unwrap_or_default();
-        let addr = context.get_primary_self_addr().await?;
+        let force_preference = context.get_config_bool(Config::E2eeForce).await?;
+        let addr = match context.get_config(Config::ConfiguredAddr).await? {
+            None => {
+                bail!("addr not configured!");
+            }
+            Some(addr) => addr,
+        };
+
        let public_key = SignedPublicKey::load_self(context).await?;

        Ok(EncryptHelper {
            prefer_encrypt,
+            force_preference,
            addr,
            public_key,
        })
@@ -94,11 +103,17 @@ impl EncryptHelper {
            }
        }

-        // Count number of recipients, including self.
-        // This does not depend on whether we send a copy to self or not.
-        let recipients_count = peerstates.len() + 1;
+        let want_encrypt = if self.force_preference {
+            // Ignore preferences of others.
+            self.prefer_encrypt == EncryptPreference::Mutual
+        } else {
+            // Count number of recipients, including self.
+            // This does not depend on whether we send a copy to self or not.
+            let recipients_count = peerstates.len() + 1;
+            2 * prefer_encrypt_count > recipients_count
+        };

-        Ok(e2ee_guaranteed || 2 * prefer_encrypt_count > recipients_count)
+        Ok(e2ee_guaranteed || want_encrypt)
    }

    /// Tries to encrypt the passed in `mail`.
@@ -115,9 +130,9 @@ impl EncryptHelper {
            .into_iter()
            .filter_map(|(state, addr)| state.map(|s| (s, addr)))
        {
-            let key = peerstate
-                .take_key(min_verified)
-                .with_context(|| format!("proper enc-key for {} missing, cannot encrypt", addr))?;
+            let key = peerstate.take_key(min_verified).ok_or_else(|| {
+                format_err!("proper enc-key for {} missing, cannot encrypt", addr)
+            })?;
            keyring.add(key);
        }
        keyring.add(self.public_key.clone());
@@ -173,6 +188,7 @@ pub async fn try_decrypt(
    // Possibly perform decryption
    let private_keyring: Keyring<SignedSecretKey> = Keyring::new_self(context).await?;
    let mut public_keyring_for_validate: Keyring<SignedPublicKey> = Keyring::new();
+    let mut signatures = HashSet::default();

    if let Some(ref mut peerstate) = peerstate {
        peerstate
@@ -185,17 +201,14 @@ pub async fn try_decrypt(
        }
    }

-    let (out_mail, signatures) = match decrypt_if_autocrypt_message(
+    let out_mail = decrypt_if_autocrypt_message(
        context,
        mail,
        private_keyring,
        public_keyring_for_validate,
+        &mut signatures,
    )
-    .await?
-    {
-        Some((out_mail, signatures)) => (Some(out_mail), signatures),
-        None => (None, Default::default()),
-    };
+    .await?;

    if let Some(mut peerstate) = peerstate {
        // If message is not encrypted and it is not a read receipt, degrade encryption.
@@ -271,7 +284,8 @@ async fn decrypt_if_autocrypt_message(
    mail: &ParsedMail<'_>,
    private_keyring: Keyring<SignedSecretKey>,
    public_keyring_for_validate: Keyring<SignedPublicKey>,
-) -> Result<Option<(Vec<u8>, HashSet<Fingerprint>)>> {
+    ret_valid_signatures: &mut HashSet<Fingerprint>,
+) -> Result<Option<Vec<u8>>> {
    let encrypted_data_part = match get_autocrypt_mime(mail).or_else(|| get_mixed_up_mime(mail)) {
        None => {
            // not an autocrypt mime message, abort and ignore
@@ -285,60 +299,36 @@ async fn decrypt_if_autocrypt_message(
        encrypted_data_part,
        private_keyring,
        public_keyring_for_validate,
+        ret_valid_signatures,
    )
    .await
 }

-/// Validates signatures of Multipart/Signed message part, as defined in RFC 1847.
-///
-/// Returns `None` if the part is not a Multipart/Signed part, otherwise retruns the set of key
-/// fingerprints for which there is a valid signature.
-async fn validate_detached_signature(
-    mail: &ParsedMail<'_>,
-    public_keyring_for_validate: &Keyring<SignedPublicKey>,
-) -> Result<Option<(Vec<u8>, HashSet<Fingerprint>)>> {
-    if mail.ctype.mimetype != "multipart/signed" {
-        return Ok(None);
-    }
-
-    if let [first_part, second_part] = &mail.subparts[..] {
-        // First part is the content, second part is the signature.
-        let content = first_part.raw_bytes;
-        let signature = second_part.get_body_raw()?;
-        let ret_valid_signatures =
-            pgp::pk_validate(content, &signature, public_keyring_for_validate).await?;
-
-        Ok(Some((content.to_vec(), ret_valid_signatures)))
-    } else {
-        Ok(None)
-    }
-}
-
 /// Returns Ok(None) if nothing encrypted was found.
 async fn decrypt_part(
    mail: &ParsedMail<'_>,
    private_keyring: Keyring<SignedSecretKey>,
    public_keyring_for_validate: Keyring<SignedPublicKey>,
-) -> Result<Option<(Vec<u8>, HashSet<Fingerprint>)>> {
+    ret_valid_signatures: &mut HashSet<Fingerprint>,
+) -> Result<Option<Vec<u8>>> {
    let data = mail.get_body_raw()?;

    if has_decrypted_pgp_armor(&data) {
-        let (plain, ret_valid_signatures) =
-            pgp::pk_decrypt(data, private_keyring, &public_keyring_for_validate).await?;
+        // we should only have one decryption happening
+        ensure!(ret_valid_signatures.is_empty(), "corrupt signatures");

-        // Check for detached signatures.
-        // If decrypted part is a multipart/signed, then there is a detached signature.
-        let decrypted_part = mailparse::parse_mail(&plain)?;
-        if let Some((content, valid_detached_signatures)) =
-            validate_detached_signature(&decrypted_part, &public_keyring_for_validate).await?
-        {
-            return Ok(Some((content, valid_detached_signatures)));
-        } else {
-            // If the message was wrongly or not signed, still return the plain text.
-            // The caller has to check the signatures then.
+        let plain = pgp::pk_decrypt(
+            data,
+            private_keyring,
+            public_keyring_for_validate,
+            Some(ret_valid_signatures),
+        )
+        .await?;

-            return Ok(Some((plain, ret_valid_signatures)));
-        }
+        // If the message was wrongly or not signed, still return the plain text.
+        // The caller has to check the signatures then.
+
+        return Ok(Some(plain));
    }

    Ok(None)
@@ -381,31 +371,39 @@ fn contains_report(mail: &ParsedMail<'_>) -> bool {
 /// [Config::ConfiguredAddr] is configured, this address is returned.
 // TODO, remove this once deltachat::key::Key no longer exists.
 pub async fn ensure_secret_key_exists(context: &Context) -> Result<String> {
-    let self_addr = context.get_primary_self_addr().await?;
+    let self_addr = context
+        .get_config(Config::ConfiguredAddr)
+        .await?
+        .ok_or_else(|| {
+            format_err!(concat!(
+                "Failed to get self address, ",
+                "cannot ensure secret key if not configured."
+            ))
+        })?;
    SignedPublicKey::load_self(context).await?;
    Ok(self_addr)
 }

 #[cfg(test)]
 mod tests {
+    use super::*;
+
    use crate::chat;
-    use crate::message::{Message, Viewtype};
+    use crate::constants::Viewtype;
+    use crate::dc_receive_imf::dc_receive_imf;
+    use crate::message::Message;
    use crate::param::Param;
    use crate::peerstate::ToSave;
    use crate::test_utils::{bob_keypair, TestContext};

-    use super::*;
-
    mod ensure_secret_key_exists {
        use super::*;

        #[async_std::test]
        async fn test_prexisting() {
-            let t = TestContext::new_alice().await;
-            assert_eq!(
-                ensure_secret_key_exists(&t).await.unwrap(),
-                "alice@example.org"
-            );
+            let t = TestContext::new().await;
+            let test_addr = t.configure_alice().await;
+            assert_eq!(ensure_secret_key_exists(&t).await.unwrap(), test_addr);
        }

        #[async_std::test]
@@ -476,7 +474,7 @@ Sent with my Delta Chat Messenger: https://delta.chat";
        assert!(!msg.was_encrypted());

        // Parsing a message is enough to update peerstate
-        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.org")
+        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.com")
            .await?
            .expect("no peerstate found in the database");
        assert_eq!(peerstate_alice.prefer_encrypt, EncryptPreference::Mutual);
@@ -507,28 +505,28 @@ Sent with my Delta Chat Messenger: https://delta.chat";

        let msg = bob.parse_msg(&sent).await;
        assert!(msg.was_encrypted());
-        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.org")
+        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.com")
            .await?
            .expect("no peerstate found in the database");
        assert_eq!(peerstate_alice.prefer_encrypt, EncryptPreference::Mutual);

        // Alice sends plaintext message with Autocrypt header.
        let mut msg = Message::new(Viewtype::Text);
-        msg.force_plaintext();
+        msg.param.set_int(Param::ForcePlaintext, 1);
        chat::prepare_msg(&alice.ctx, chat_alice, &mut msg).await?;
        chat::send_msg(&alice.ctx, chat_alice, &mut msg).await?;
        let sent = alice.pop_sent_msg().await;

        let msg = bob.parse_msg(&sent).await;
        assert!(!msg.was_encrypted());
-        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.org")
+        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.com")
            .await?
            .expect("no peerstate found in the database");
        assert_eq!(peerstate_alice.prefer_encrypt, EncryptPreference::Mutual);

        // Alice sends plaintext message without Autocrypt header.
        let mut msg = Message::new(Viewtype::Text);
-        msg.force_plaintext();
+        msg.param.set_int(Param::ForcePlaintext, 1);
        msg.param.set_int(Param::SkipAutocrypt, 1);
        chat::prepare_msg(&alice.ctx, chat_alice, &mut msg).await?;
        chat::send_msg(&alice.ctx, chat_alice, &mut msg).await?;
@@ -536,7 +534,7 @@ Sent with my Delta Chat Messenger: https://delta.chat";

        let msg = bob.parse_msg(&sent).await;
        assert!(!msg.was_encrypted());
-        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.org")
+        let peerstate_alice = Peerstate::from_addr(&bob.ctx, "alice@example.com")
            .await?
            .expect("no peerstate found in the database");
        assert_eq!(peerstate_alice.prefer_encrypt, EncryptPreference::Reset);
@@ -614,4 +612,68 @@ Sent with my Delta Chat Messenger: https://delta.chat";

        Ok(())
    }
+
+    #[async_std::test]
+    async fn test_e2ee_force() -> Result<()> {
+        let alice = TestContext::new_alice().await;
+        let bob = TestContext::new_bob().await;
+
+        let alice_chat = alice.create_chat(&bob).await;
+        let bob_chat = bob.create_chat(&alice).await;
+
+        alice.set_config(Config::ShowEmails, Some("2")).await?;
+        bob.set_config(Config::ShowEmails, Some("2")).await?;
+
+        // Alice does not prefer encryption.
+        alice.set_config(Config::E2eeEnabled, Some("0")).await?;
+        bob.set_config(Config::E2eeEnabled, Some("1")).await?;
+
+        // Alice sends her key to Bob.
+        let sent_msg = alice.send_text(alice_chat.id, "Hi Bob").await;
+        bob.recv_msg(&sent_msg).await;
+        let received_msg = bob.get_last_msg().await;
+        assert!(!received_msg.get_showpadlock());
+
+        // Bob should not encrypt, because Alice does not prefer encryption.
+        let sent_msg = bob
+            .send_text(bob_chat.id, "This should not be encrypted")
+            .await;
+        alice.recv_msg(&sent_msg).await;
+        let received_msg = alice.get_last_msg().await;
+        assert!(!received_msg.get_showpadlock());
+
+        // Bob ignores Alice's preference for no encryption.
+        bob.set_config(Config::E2eeForce, Some("1")).await?;
+        let sent_msg = bob.send_text(bob_chat.id, "This should be encrypted").await;
+        alice.recv_msg(&sent_msg).await;
+        let received_msg = alice.get_last_msg().await;
+        assert!(received_msg.get_showpadlock());
+
+        // Alice switches to MUA without Autocrypt support.
+        dc_receive_imf(
+            &bob,
+            br#"Subject: Hello from MUA
+Message-ID: foobar@example.com
+To: Bob <bob@example.net>
+From: Alice <alice@example.com>
+Content-Type: text/plain; charset=utf-8
+Date: Sun, 14 Mar 2500 00:00:00 +0000
+
+Hello from MUA."#,
+            "INBOX",
+            100,
+            false,
+        )
+        .await?;
+
+        // Bob can't encrypt now because Alice has no key.
+        let sent_msg = bob
+            .send_text(bob_chat.id, "This should not be encrypted again")
+            .await;
+        alice.recv_msg(&sent_msg).await;
+        let received_msg = alice.get_last_msg().await;
+        assert!(!received_msg.get_showpadlock());
+
+        Ok(())
+    }
 }
--- a/src/ephemeral.rs
+++ b/src/ephemeral.rs
@@ -48,11 +48,11 @@
 //!
 //! ## When messages are deleted
 //!
-//! The `ephemeral_loop` task schedules the next due running of
-//! `delete_expired_messages` which in turn emits `MsgsChanged` events
-//! when deleting local messages to make UIs reload displayed messages.
+//! Local deletion happens when the chatlist or chat is loaded. A
+//! `MsgsChanged` event is emitted when a message deletion is due, to
+//! make UI reload displayed messages and cause actual deletion.
 //!
-//! Server deletion happens by updating the `imap` table based on
+//! Server deletion happens by generating IMAP deletion jobs based on
 //! the database entries which are expired either according to their
 //! ephemeral message timers or global `delete_server_after` setting.

@@ -62,21 +62,20 @@ use std::str::FromStr;
 use std::time::{Duration, SystemTime, UNIX_EPOCH};

 use anyhow::{ensure, Context as _, Result};
-use async_std::channel::Receiver;
-use async_std::future::timeout;
+use async_std::task;
 use serde::{Deserialize, Serialize};

 use crate::chat::{send_msg, ChatId};
-use crate::constants::{DC_CHAT_ID_LAST_SPECIAL, DC_CHAT_ID_TRASH};
-use crate::contact::ContactId;
+use crate::constants::{
+    Viewtype, DC_CHAT_ID_LAST_SPECIAL, DC_CHAT_ID_TRASH, DC_CONTACT_ID_DEVICE, DC_CONTACT_ID_SELF,
+};
 use crate::context::Context;
-use crate::dc_tools::{duration_to_str, time};
+use crate::dc_tools::time;
 use crate::download::MIN_DELETE_SERVER_AFTER;
 use crate::events::EventType;
-use crate::log::LogExt;
-use crate::message::{Message, MessageState, MsgId, Viewtype};
+use crate::job;
+use crate::message::{Message, MessageState, MsgId};
 use crate::mimeparser::SystemMessage;
-use crate::sql;
 use crate::stock_str;
 use std::cmp::max;

@@ -198,7 +197,7 @@ impl ChatId {
        }
        self.inner_set_ephemeral_timer(context, timer).await?;
        let mut msg = Message::new(Viewtype::Text);
-        msg.text = Some(stock_ephemeral_timer_changed(context, timer, ContactId::SELF).await);
+        msg.text = Some(stock_ephemeral_timer_changed(context, timer, DC_CONTACT_ID_SELF).await);
        msg.param.set_cmd(SystemMessage::EphemeralTimerChanged);
        if let Err(err) = send_msg(context, self, &mut msg).await {
            error!(
@@ -214,7 +213,7 @@ impl ChatId {
 pub(crate) async fn stock_ephemeral_timer_changed(
    context: &Context,
    timer: Timer,
-    from_id: ContactId,
+    from_id: u32,
 ) -> String {
    match timer {
        Timer::Disabled => stock_str::msg_ephemeral_timer_disabled(context, from_id).await,
@@ -264,7 +263,7 @@ pub(crate) async fn stock_ephemeral_timer_changed(

 impl MsgId {
    /// Returns ephemeral message timer value for the message.
-    pub(crate) async fn ephemeral_timer(self, context: &Context) -> Result<Timer> {
+    pub(crate) async fn ephemeral_timer(self, context: &Context) -> anyhow::Result<Timer> {
        let res = match context
            .sql
            .query_get_value(
@@ -280,7 +279,7 @@ impl MsgId {
    }

    /// Starts ephemeral message timer for the message if it is not started yet.
-    pub(crate) async fn start_ephemeral_timer(self, context: &Context) -> Result<()> {
+    pub(crate) async fn start_ephemeral_timer(self, context: &Context) -> anyhow::Result<()> {
        if let Timer::Enabled { duration } = self.ephemeral_timer(context).await? {
            let ephemeral_timestamp = time().saturating_add(duration.into());

@@ -293,43 +292,12 @@ impl MsgId {
                    paramsv![ephemeral_timestamp, ephemeral_timestamp, self],
                )
                .await?;
-            context.interrupt_ephemeral_task().await;
+            schedule_ephemeral_task(context).await;
        }
        Ok(())
    }
 }

-pub(crate) async fn start_ephemeral_timers_msgids(
-    context: &Context,
-    msg_ids: &[MsgId],
-) -> Result<()> {
-    let msg_ids: Vec<&dyn crate::ToSql> = msg_ids
-        .iter()
-        .map(|msg_id| msg_id as &dyn crate::ToSql)
-        .collect();
-    let now = time();
-    let count = context
-        .sql
-        .execute(
-            format!(
-                "UPDATE msgs SET ephemeral_timestamp = ? + ephemeral_timer
-         WHERE (ephemeral_timestamp == 0 OR ephemeral_timestamp > ? + ephemeral_timer) AND ephemeral_timer > 0
-         AND id IN ({})",
-                sql::repeat_vars(msg_ids.len())
-            ),
-            rusqlite::params_from_iter(
-                std::iter::once(&now as &dyn crate::ToSql)
-                    .chain(std::iter::once(&now as &dyn crate::ToSql))
-                    .chain(msg_ids),
-            ),
-        )
-        .await?;
-    if count > 0 {
-        context.interrupt_ephemeral_task().await;
-    }
-    Ok(())
-}
-
 /// Deletes messages which are expired according to
 /// `delete_device_after` setting or `ephemeral_timestamp` column.
 ///
@@ -338,7 +306,7 @@ pub(crate) async fn start_ephemeral_timers_msgids(
 /// false. This function does not emit the MsgsChanged event itself,
 /// because it is also called when chatlist is reloaded, and emitting
 /// MsgsChanged there will cause infinite reload loop.
-pub(crate) async fn delete_expired_messages(context: &Context, now: i64) -> Result<()> {
+pub(crate) async fn delete_expired_messages(context: &Context) -> Result<bool> {
    let mut updated = context
        .sql
        .execute(
@@ -354,21 +322,21 @@ WHERE
  AND ephemeral_timestamp <= ?
  AND chat_id != ?
 "#,
-            paramsv![DC_CHAT_ID_TRASH, now, DC_CHAT_ID_TRASH],
+            paramsv![DC_CHAT_ID_TRASH, time(), DC_CHAT_ID_TRASH],
        )
        .await
        .context("update failed")?
        > 0;

    if let Some(delete_device_after) = context.get_config_delete_device_after().await? {
-        let self_chat_id = ChatId::lookup_by_contact(context, ContactId::SELF)
+        let self_chat_id = ChatId::lookup_by_contact(context, DC_CONTACT_ID_SELF)
            .await?
            .unwrap_or_default();
-        let device_chat_id = ChatId::lookup_by_contact(context, ContactId::DEVICE)
+        let device_chat_id = ChatId::lookup_by_contact(context, DC_CONTACT_ID_DEVICE)
            .await?
            .unwrap_or_default();

-        let threshold_timestamp = now.saturating_sub(delete_device_after);
+        let threshold_timestamp = time() - delete_device_after;

        // Delete expired messages
        //
@@ -378,8 +346,7 @@ WHERE
            .sql
            .execute(
                "UPDATE msgs \
-             SET chat_id = ?, txt = '', subject='', txt_raw='', \
-                 mime_headers='', from_id=0, to_id=0, param='' \
+             SET txt = 'DELETED', chat_id = ? \
             WHERE timestamp < ? \
             AND chat_id > ? \
             AND chat_id != ? \
@@ -398,121 +365,80 @@ WHERE
        updated |= rows_modified > 0;
    }

-    if updated {
-        context.emit_msgs_changed_without_ids();
-    }
-
-    Ok(())
+    schedule_ephemeral_task(context).await;
+    Ok(updated)
 }

-/// Calculates the next timestamp when a message will be deleted due to
-/// `delete_device_after` setting being set.
-async fn next_delete_device_after_timestamp(context: &Context) -> Result<Option<i64>> {
-    if let Some(delete_device_after) = context.get_config_delete_device_after().await? {
-        let self_chat_id = ChatId::lookup_by_contact(context, ContactId::SELF)
-            .await?
-            .unwrap_or_default();
-        let device_chat_id = ChatId::lookup_by_contact(context, ContactId::DEVICE)
-            .await?
-            .unwrap_or_default();
-
-        let oldest_message_timestamp: Option<i64> = context
-            .sql
-            .query_get_value(
-                r#"
-                SELECT min(timestamp)
-                FROM msgs
-                WHERE chat_id > ?
-                  AND chat_id != ?
-                  AND chat_id != ?;
-                "#,
-                paramsv![DC_CHAT_ID_TRASH, self_chat_id, device_chat_id],
-            )
-            .await?;
-
-        Ok(oldest_message_timestamp.map(|x| x.saturating_add(delete_device_after)))
-    } else {
-        Ok(None)
-    }
-}
-
-/// Calculates next timestamp when expiration of some message will happen.
+/// Schedule a task to emit MsgsChanged event when the next local
+/// deletion happens. Existing task is cancelled to make sure at most
+/// one such task is scheduled at a time.
 ///
-/// Expiration can happen either because user has set `delete_device_after` setting or because the
-/// message itself has an ephemeral timer.
-async fn next_expiration_timestamp(context: &Context) -> Option<i64> {
+/// UI is expected to reload the chatlist or the chat in response to
+/// MsgsChanged event, this will trigger actual deletion.
+///
+/// This takes into account only per-chat timeouts, because global device
+/// timeouts are at least one hour long and deletion is triggered often enough
+/// by user actions.
+pub async fn schedule_ephemeral_task(context: &Context) {
    let ephemeral_timestamp: Option<i64> = match context
        .sql
        .query_get_value(
            r#"
-            SELECT min(ephemeral_timestamp)
-            FROM msgs
-            WHERE ephemeral_timestamp != 0
-              AND chat_id != ?;
-            "#,
+    SELECT ephemeral_timestamp
+    FROM msgs
+    WHERE ephemeral_timestamp != 0
+      AND chat_id != ?
+    ORDER BY ephemeral_timestamp ASC
+    LIMIT 1;
+    "#,
            paramsv![DC_CHAT_ID_TRASH], // Trash contains already deleted messages, skip them
        )
        .await
    {
        Err(err) => {
            warn!(context, "Can't calculate next ephemeral timeout: {}", err);
-            None
+            return;
        }
        Ok(ephemeral_timestamp) => ephemeral_timestamp,
    };

-    let delete_device_after_timestamp: Option<i64> =
-        match next_delete_device_after_timestamp(context).await {
-            Err(err) => {
-                warn!(
-                    context,
-                    "Can't calculate timestamp of the next message expiration: {}", err
-                );
-                None
-            }
-            Ok(timestamp) => timestamp,
-        };
-
-    ephemeral_timestamp
-        .into_iter()
-        .chain(delete_device_after_timestamp.into_iter())
-        .min()
-}
-
-pub(crate) async fn ephemeral_loop(context: &Context, interrupt_receiver: Receiver<()>) {
-    loop {
-        let ephemeral_timestamp = next_expiration_timestamp(context).await;
+    // Cancel existing task, if any
+    if let Some(ephemeral_task) = context.ephemeral_task.write().await.take() {
+        ephemeral_task.cancel().await;
+    }

+    if let Some(ephemeral_timestamp) = ephemeral_timestamp {
        let now = SystemTime::now();
-        let until = if let Some(ephemeral_timestamp) = ephemeral_timestamp {
-            UNIX_EPOCH
-                + Duration::from_secs(ephemeral_timestamp.try_into().unwrap_or(u64::MAX))
-                + Duration::from_secs(1)
-        } else {
-            // no messages to be deleted for now, wait long for one to occur
-            now + Duration::from_secs(86400)
-        };
+        let until = UNIX_EPOCH
+            + Duration::from_secs(ephemeral_timestamp.try_into().unwrap_or(u64::MAX))
+            + Duration::from_secs(1);

        if let Ok(duration) = until.duration_since(now) {
-            info!(
-                context,
-                "Ephemeral loop waiting for deletion in {} or interrupt",
-                duration_to_str(duration)
-            );
-            if timeout(duration, interrupt_receiver.recv()).await.is_ok() {
-                // received an interruption signal, recompute waiting time (if any)
-                continue;
-            }
+            // Schedule a task, ephemeral_timestamp is in the future
+            let context1 = context.clone();
+            let ephemeral_task = task::spawn(async move {
+                async_std::task::sleep(duration).await;
+                context1.emit_event(EventType::MsgsChanged {
+                    chat_id: ChatId::new(0),
+                    msg_id: MsgId::new(0),
+                });
+            });
+            *context.ephemeral_task.write().await = Some(ephemeral_task);
+        } else {
+            // Emit event immediately
+            context.emit_event(EventType::MsgsChanged {
+                chat_id: ChatId::new(0),
+                msg_id: MsgId::new(0),
+            });
        }
-
-        delete_expired_messages(context, time())
-            .await
-            .ok_or_log(context);
    }
 }

-/// Schedules expired IMAP messages for deletion.
-pub(crate) async fn delete_expired_imap_messages(context: &Context) -> Result<()> {
+/// Returns ID of any expired message that should be deleted from the server.
+///
+/// It looks up the trash chat too, to find messages that are already
+/// deleted locally, but not deleted on the server.
+pub(crate) async fn load_imap_deletion_msgid(context: &Context) -> anyhow::Result<Option<MsgId>> {
    let now = time();

    let (threshold_timestamp, threshold_timestamp_extended) =
@@ -526,20 +452,27 @@ pub(crate) async fn delete_expired_imap_messages(context: &Context) -> Result<()

    context
        .sql
-        .execute(
-            "UPDATE imap
-             SET target=''
-             WHERE rfc724_mid IN (
-               SELECT rfc724_mid FROM msgs
-               WHERE ((download_state = 0 AND timestamp < ?) OR
-                      (download_state != 0 AND timestamp < ?) OR
-                      (ephemeral_timestamp != 0 AND ephemeral_timestamp <= ?))
-             )",
-            paramsv![threshold_timestamp, threshold_timestamp_extended, now],
+        .query_row_optional(
+            "SELECT id FROM msgs \
+         WHERE ( \
+         ((download_state = 0 AND timestamp < ?) OR (download_state != 0 AND timestamp < ?)) \
+         OR (ephemeral_timestamp != 0 AND ephemeral_timestamp <= ?) \
+         ) \
+         AND server_uid != 0 \
+         AND NOT id IN (SELECT foreign_id FROM jobs WHERE action = ?)
+         LIMIT 1",
+            paramsv![
+                threshold_timestamp,
+                threshold_timestamp_extended,
+                now,
+                job::Action::DeleteMsgOnImap
+            ],
+            |row| {
+                let msg_id: MsgId = row.get(0)?;
+                Ok(msg_id)
+            },
        )
-        .await?;
-
-    Ok(())
+        .await
 }

 /// Start ephemeral timers for seen messages if they are not started
@@ -574,10 +507,12 @@ pub(crate) async fn start_ephemeral_timers(context: &Context) -> Result<()> {

 #[cfg(test)]
 mod tests {
+    use crate::param::Params;
+    use async_std::task::sleep;
+
    use super::*;
    use crate::config::Config;
    use crate::dc_receive_imf::dc_receive_imf;
-    use crate::dc_tools::MAX_SECONDS_TO_LEND_FROM_FUTURE;
    use crate::download::DownloadState;
    use crate::test_utils::TestContext;
    use crate::{
@@ -590,7 +525,7 @@ mod tests {
        let context = TestContext::new().await;

        assert_eq!(
-            stock_ephemeral_timer_changed(&context, Timer::Disabled, ContactId::SELF).await,
+            stock_ephemeral_timer_changed(&context, Timer::Disabled, DC_CONTACT_ID_SELF).await,
            "Message deletion timer is disabled by me."
        );

@@ -598,7 +533,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 1 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1 s by me."
@@ -607,7 +542,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 30 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 30 s by me."
@@ -616,7 +551,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 60 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1 minute by me."
@@ -625,7 +560,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 90 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1.5 minutes by me."
@@ -634,7 +569,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 30 * 60 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 30 minutes by me."
@@ -643,7 +578,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 60 * 60 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1 hour by me."
@@ -652,7 +587,7 @@ mod tests {
            stock_ephemeral_timer_changed(
                &context,
                Timer::Enabled { duration: 5400 },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1.5 hours by me."
@@ -663,7 +598,7 @@ mod tests {
                Timer::Enabled {
                    duration: 2 * 60 * 60
                },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 2 hours by me."
@@ -674,7 +609,7 @@ mod tests {
                Timer::Enabled {
                    duration: 24 * 60 * 60
                },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1 day by me."
@@ -685,7 +620,7 @@ mod tests {
                Timer::Enabled {
                    duration: 2 * 24 * 60 * 60
                },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 2 days by me."
@@ -696,7 +631,7 @@ mod tests {
                Timer::Enabled {
                    duration: 7 * 24 * 60 * 60
                },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 1 week by me."
@@ -707,7 +642,7 @@ mod tests {
                Timer::Enabled {
                    duration: 4 * 7 * 24 * 60 * 60
                },
-                ContactId::SELF
+                DC_CONTACT_ID_SELF
            )
            .await,
            "Message deletion timer is set to 4 weeks by me."
@@ -790,7 +725,7 @@ mod tests {
    /// Test that Alice replying to the chat without a timer at the same time as Bob enables the
    /// timer does not result in disabling the timer on the Bob's side.
    #[async_std::test]
-    async fn test_ephemeral_timer_rollback() -> Result<()> {
+    async fn test_ephemeral_timer_rollback() -> anyhow::Result<()> {
        let alice = TestContext::new_alice().await;
        let bob = TestContext::new_bob().await;

@@ -864,108 +799,57 @@ mod tests {
    }

    #[async_std::test]
-    async fn test_ephemeral_delete_msgs() -> Result<()> {
+    async fn test_ephemeral_delete_msgs() {
        let t = TestContext::new_alice().await;
-        let self_chat = t.get_self_chat().await;
+        let chat = t.get_self_chat().await;

-        assert_eq!(next_expiration_timestamp(&t).await, None);
-
-        t.send_text(self_chat.id, "Saved message, which we delete manually")
+        t.send_text(chat.id, "Saved message, which we delete manually")
            .await;
-        let msg = t.get_last_msg_in(self_chat.id).await;
-        msg.id.delete_from_db(&t).await?;
-        check_msg_is_deleted(&t, &self_chat, msg.id).await;
+        let msg = t.get_last_msg_in(chat.id).await;
+        msg.id.delete_from_db(&t).await.unwrap();
+        check_msg_was_deleted(&t, &chat, msg.id).await;

-        self_chat
-            .id
-            .set_ephemeral_timer(&t, Timer::Enabled { duration: 3600 })
+        chat.id
+            .set_ephemeral_timer(&t, Timer::Enabled { duration: 1 })
            .await
            .unwrap();
+        let msg = t
+            .send_text(chat.id, "Saved message, disappearing after 1s")
+            .await;

-        // Send a saved message which will be deleted after 3600s
-        let now = time();
-        let msg = t.send_text(self_chat.id, "Message text").await;
+        sleep(Duration::from_millis(1100)).await;

-        check_msg_will_be_deleted(&t, msg.sender_msg_id, &self_chat, now + 3599, time() + 3601)
+        // Check checks that the msg was deleted locally
+        check_msg_was_deleted(&t, &chat, msg.sender_msg_id).await;
+
+        // Check that the msg will be deleted on the server
+        // First of all, set a server_uid so that DC thinks that it's actually possible to delete
+        t.sql
+            .execute(
+                "UPDATE msgs SET server_uid=1 WHERE id=?",
+                paramsv![msg.sender_msg_id],
+            )
            .await
            .unwrap();
+        let job = job::load_imap_deletion_job(&t).await.unwrap();
+        assert_eq!(
+            job,
+            Some(job::Job::new(
+                job::Action::DeleteMsgOnImap,
+                msg.sender_msg_id.to_u32(),
+                Params::new(),
+                0,
+            ))
+        );
+        // Let's assume that executing the job fails on first try and the job is saved to the db
+        job.unwrap().save(&t).await.unwrap();

-        // Set DeleteDeviceAfter to 1800s. Thend send a saved message which will
-        // still be deleted after 3600s because DeleteDeviceAfter doesn't apply to saved messages.
-        t.set_config(Config::DeleteDeviceAfter, Some("1800"))
-            .await?;
-
-        let now = time();
-        let msg = t.send_text(self_chat.id, "Message text").await;
-
-        check_msg_will_be_deleted(&t, msg.sender_msg_id, &self_chat, now + 3559, time() + 3601)
-            .await
-            .unwrap();
-
-        // Send a message to Bob which will be deleted after 1800s because of DeleteDeviceAfter.
-        let bob_chat = t.create_chat_with_contact("", "bob@example.net").await;
-        let now = time();
-        let msg = t.send_text(bob_chat.id, "Message text").await;
-
-        check_msg_will_be_deleted(
-            &t,
-            msg.sender_msg_id,
-            &bob_chat,
-            now + 1799,
-            // The message may appear to be sent MAX_SECONDS_TO_LEND_FROM_FUTURE later and
-            // therefore be deleted MAX_SECONDS_TO_LEND_FROM_FUTURE later.
-            time() + 1801 + MAX_SECONDS_TO_LEND_FROM_FUTURE,
-        )
-        .await
-        .unwrap();
-
-        // Enable ephemeral messages with Bob -> message will be deleted after 60s.
-        // This tests that the message is deleted at min(ephemeral deletion time, DeleteDeviceAfter deletion time).
-        bob_chat
-            .id
-            .set_ephemeral_timer(&t, Timer::Enabled { duration: 60 })
-            .await?;
-
-        let now = time();
-        let msg = t.send_text(bob_chat.id, "Message text").await;
-
-        check_msg_will_be_deleted(&t, msg.sender_msg_id, &bob_chat, now + 59, time() + 61)
-            .await
-            .unwrap();
-
-        Ok(())
+        // Make sure that we don't get yet another job when loading from db
+        let job2 = job::load_imap_deletion_job(&t).await.unwrap();
+        assert_eq!(job2, None);
    }

-    async fn check_msg_will_be_deleted(
-        t: &TestContext,
-        msg_id: MsgId,
-        chat: &Chat,
-        not_deleted_at: i64,
-        deleted_at: i64,
-    ) -> Result<()> {
-        let next_expiration = next_expiration_timestamp(t).await.unwrap();
-
-        assert!(next_expiration > not_deleted_at);
-        delete_expired_messages(t, not_deleted_at).await?;
-
-        let loaded = Message::load_from_db(t, msg_id).await?;
-        assert_eq!(loaded.text.unwrap(), "Message text");
-        assert_eq!(loaded.chat_id, chat.id);
-
-        assert!(next_expiration < deleted_at);
-        delete_expired_messages(t, deleted_at).await?;
-
-        let loaded = Message::load_from_db(t, msg_id).await?;
-        assert_eq!(loaded.text.unwrap(), "");
-        assert_eq!(loaded.chat_id, DC_CHAT_ID_TRASH);
-
-        // Check that the msg was deleted locally.
-        check_msg_is_deleted(t, chat, msg_id).await;
-
-        Ok(())
-    }
-
-    async fn check_msg_is_deleted(t: &TestContext, chat: &Chat, msg_id: MsgId) {
+    async fn check_msg_was_deleted(t: &TestContext, chat: &Chat, msg_id: MsgId) {
        let chat_items = chat::get_chat_msgs(t, chat.id, 0, None).await.unwrap();
        // Check that the chat is empty except for possibly info messages:
        for item in &chat_items {
@@ -977,8 +861,8 @@ mod tests {

        // Check that if there is a message left, the text and metadata are gone
        if let Ok(msg) = Message::load_from_db(t, msg_id).await {
-            assert_eq!(msg.from_id, ContactId::UNDEFINED);
-            assert_eq!(msg.to_id, ContactId::UNDEFINED);
+            assert_eq!(msg.from_id, 0);
+            assert_eq!(msg.to_id, 0);
            assert!(msg.text.is_none_or_empty(), "{:?}", msg.text);
            let rawtxt: Option<String> = t
                .sql
@@ -990,7 +874,7 @@ mod tests {
    }

    #[async_std::test]
-    async fn test_delete_expired_imap_messages() -> Result<()> {
+    async fn test_load_imap_deletion_msgid() -> Result<()> {
        let t = TestContext::new_alice().await;
        const HOUR: i64 = 60 * 60;
        let now = time();
@@ -1003,98 +887,42 @@ mod tests {
            (2000, now - 18 * HOUR, now - HOUR),
            (2020, now - 17 * HOUR, now + HOUR),
        ] {
-            let message_id = id.to_string();
            t.sql
-                   .execute(
-                       "INSERT INTO msgs (id, rfc724_mid, timestamp, ephemeral_timestamp) VALUES (?,?,?,?);",
-                       paramsv![id, message_id, timestamp, ephemeral_timestamp],
-                   )
-                   .await?;
-            t.sql
-                   .execute(
-                       "INSERT INTO imap (rfc724_mid, folder, uid, target) VALUES (?,'INBOX',?, 'INBOX');",
-                       paramsv![message_id, id],
-                   )
-                   .await?;
-        }
-
-        async fn test_marked_for_deletion(context: &Context, id: u32) -> Result<()> {
-            assert_eq!(
-                context
-                    .sql
-                    .count(
-                        "SELECT COUNT(*) FROM imap WHERE target='' AND rfc724_mid=?",
-                        paramsv![id.to_string()],
-                    )
-                    .await?,
-                1
-            );
-            Ok(())
-        }
-
-        async fn remove_uid(context: &Context, id: u32) -> Result<()> {
-            context
-                .sql
                .execute(
-                    "DELETE FROM imap WHERE rfc724_mid=?",
-                    paramsv![id.to_string()],
+                    "INSERT INTO msgs (id, server_uid, timestamp, ephemeral_timestamp) VALUES (?,?,?,?);",
+                    paramsv![id, id, timestamp, ephemeral_timestamp],
                )
                .await?;
-            Ok(())
        }

-        // This should mark message 2000 for deletion.
-        delete_expired_imap_messages(&t).await?;
-        test_marked_for_deletion(&t, 2000).await?;
-        remove_uid(&t, 2000).await?;
-        // No other messages are marked for deletion.
-        assert_eq!(
-            t.sql
-                .count("SELECT COUNT(*) FROM imap WHERE target=''", paramsv![],)
-                .await?,
-            0
-        );
+        assert_eq!(load_imap_deletion_msgid(&t).await?, Some(MsgId::new(2000)));
+
+        MsgId::new(2000).delete_from_db(&t).await?;
+        assert_eq!(load_imap_deletion_msgid(&t).await?, None);

        t.set_config(Config::DeleteServerAfter, Some(&*(25 * HOUR).to_string()))
            .await?;
-        delete_expired_imap_messages(&t).await?;
-        test_marked_for_deletion(&t, 1000).await?;
+        assert_eq!(load_imap_deletion_msgid(&t).await?, Some(MsgId::new(1000)));

        MsgId::new(1000)
            .update_download_state(&t, DownloadState::Available)
            .await?;
-        t.sql
-            .execute(
-                "UPDATE imap SET target=folder WHERE rfc724_mid='1000'",
-                paramsv![],
-            )
-            .await?;
-        delete_expired_imap_messages(&t).await?;
-        test_marked_for_deletion(&t, 1000).await?; // Delete downloadable anyway.
-        remove_uid(&t, 1000).await?;
+        assert_eq!(load_imap_deletion_msgid(&t).await?, Some(MsgId::new(1000))); // delete downloadable anyway
+
+        MsgId::new(1000).delete_from_db(&t).await?;
+        assert_eq!(load_imap_deletion_msgid(&t).await?, None);

        t.set_config(Config::DeleteServerAfter, Some(&*(22 * HOUR).to_string()))
            .await?;
-        delete_expired_imap_messages(&t).await?;
-        test_marked_for_deletion(&t, 1010).await?;
-        t.sql
-            .execute(
-                "UPDATE imap SET target=folder WHERE rfc724_mid='1010'",
-                paramsv![],
-            )
-            .await?;
+        assert_eq!(load_imap_deletion_msgid(&t).await?, Some(MsgId::new(1010)));

        MsgId::new(1010)
            .update_download_state(&t, DownloadState::Available)
            .await?;
-        delete_expired_imap_messages(&t).await?;
-        // Keep downloadable for now.
-        assert_eq!(
-            t.sql
-                .count("SELECT COUNT(*) FROM imap WHERE target=''", paramsv![],)
-                .await?,
-            0
-        );
+        assert_eq!(load_imap_deletion_msgid(&t).await?, None); // keep downloadable for now
+
+        MsgId::new(1010).delete_from_db(&t).await?;
+        assert_eq!(load_imap_deletion_msgid(&t).await?, None);

        Ok(())
    }
@@ -1108,13 +936,15 @@ mod tests {
        dc_receive_imf(
            &alice,
            b"From: Bob <bob@example.com>\n\
-                    To: Alice <alice@example.org>\n\
+                    To: Alice <alice@example.com>\n\
                    Chat-Version: 1.0\n\
                    Subject: Subject\n\
                    Message-ID: <first@example.com>\n\
                    Date: Sun, 22 Mar 2020 00:10:00 +0000\n\
                    \n\
                    hello\n",
+            "INBOX",
+            1,
            false,
        )
        .await?;
@@ -1127,7 +957,7 @@ mod tests {
        dc_receive_imf(
            &alice,
            b"From: Bob <bob@example.com>\n\
-                    To: Alice <alice@example.org>\n\
+                    To: Alice <alice@example.com>\n\
                    Chat-Version: 1.0\n\
                    Subject: Subject\n\
                    Message-ID: <second@example.com>\n\
@@ -1135,6 +965,8 @@ mod tests {
                    Ephemeral-Timer: 60\n\
                    \n\
                    second message\n",
+            "INBOX",
+            2,
            false,
        )
        .await?;
@@ -1162,7 +994,7 @@ mod tests {
        dc_receive_imf(
            &alice,
            b"From: Bob <bob@example.com>\n\
-                    To: Alice <alice@example.org>\n\
+                    To: Alice <alice@example.com>\n\
                    Chat-Version: 1.0\n\
                    Subject: Subject\n\
                    Message-ID: <third@example.com>\n\
@@ -1171,6 +1003,8 @@ mod tests {
                    In-Reply-To: <first@example.com>\n\
                    \n\
                    > hello\n",
+            "INBOX",
+            3,
            false,
        )
        .await?;
--- a/src/events.rs
+++ b/src/events.rs
@@ -7,10 +7,8 @@ use async_std::path::PathBuf;
 use strum::EnumProperty;

 use crate::chat::ChatId;
-use crate::contact::ContactId;
 use crate::ephemeral::Timer as EphemeralTimer;
 use crate::message::MsgId;
-use crate::webxdc::StatusUpdateSerial;

 #[derive(Debug)]
 pub struct Events {
@@ -254,7 +252,7 @@ pub enum EventType {
    ///
    /// @param data1 (int) If set, this is the contact_id of an added contact that should be selected.
    #[strum(props(id = "2030"))]
-    ContactsChanged(Option<ContactId>),
+    ContactsChanged(Option<u32>),

    /// Location of one or more contact has changed.
    ///
@@ -262,7 +260,7 @@ pub enum EventType {
    ///     If the locations of several contacts have been changed,
    ///     eg. after calling dc_delete_all_locations(), this parameter is set to `None`.
    #[strum(props(id = "2035"))]
-    LocationChanged(Option<ContactId>),
+    LocationChanged(Option<u32>),

    /// Inform about the configuration progress started by configure().
    #[strum(props(id = "2041"))]
@@ -306,10 +304,7 @@ pub enum EventType {
    ///     800=vg-member-added-received received, shown as "bob@addr securely joined GROUP", only sent for the verified-group-protocol.
    ///     1000=Protocol finished for this contact.
    #[strum(props(id = "2060"))]
-    SecurejoinInviterProgress {
-        contact_id: ContactId,
-        progress: usize,
-    },
+    SecurejoinInviterProgress { contact_id: u32, progress: usize },

    /// Progress information of a secure-join handshake from the view of the joiner
    /// (Bob, the person who scans the QR code).
@@ -320,10 +315,7 @@ pub enum EventType {
    ///     400=vg-/vc-request-with-auth sent, typically shown as "alice@addr verified, introducing myself."
    ///     (Bob has verified alice and waits until Alice does the same for him)
    #[strum(props(id = "2061"))]
-    SecurejoinJoinerProgress {
-        contact_id: ContactId,
-        progress: usize,
-    },
+    SecurejoinJoinerProgress { contact_id: u32, progress: usize },

    /// The connectivity to the server changed.
    /// This means that you should refresh the connectivity view
@@ -334,10 +326,4 @@ pub enum EventType {

    #[strum(props(id = "2110"))]
    SelfavatarChanged,
-
-    #[strum(props(id = "2120"))]
-    WebxdcStatusUpdate {
-        msg_id: MsgId,
-        status_update_serial: StatusUpdateSerial,
-    },
 }
--- a/src/headerdef.rs
+++ b/src/headerdef.rs
@@ -33,7 +33,6 @@ pub enum HeaderDef {
    XMozillaDraftInfo,

    ListId,
-    ListPost,
    References,
    InReplyTo,
    Precedence,
--- a/src/html.rs
+++ b/src/html.rs
@@ -279,9 +279,9 @@ mod tests {
    use crate::chat;
    use crate::chat::forward_msgs;
    use crate::config::Config;
-    use crate::contact::ContactId;
+    use crate::constants::{Viewtype, DC_CONTACT_ID_SELF};
    use crate::dc_receive_imf::dc_receive_imf;
-    use crate::message::{MessengerMessage, Viewtype};
+    use crate::message::MessengerMessage;
    use crate::test_utils::TestContext;

    #[async_std::test]
@@ -365,7 +365,7 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
        // however, rust multiline-strings use just `\n`;
        // therefore, we just remove `\r` before comparison.
        assert_eq!(
-            parser.html.replace('\r', ""),
+            parser.html.replace("\r", ""),
            r##"
 <html>
  <p>mime-modified <b>set</b>; simplify is always regarded as lossy.</p>
@@ -379,7 +379,7 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
        let raw = include_bytes!("../test-data/message/text_alt_html.eml");
        let parser = HtmlMsgParser::from_bytes(&t.ctx, raw).await.unwrap();
        assert_eq!(
-            parser.html.replace('\r', ""), // see comment in test_htmlparse_html()
+            parser.html.replace("\r", ""), // see comment in test_htmlparse_html()
            r##"<html>
  <p>mime-modified <b>set</b>; simplify is always regarded as lossy.</p>
 </html>
@@ -394,7 +394,7 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
        let raw = include_bytes!("../test-data/message/text_alt_plain_html.eml");
        let parser = HtmlMsgParser::from_bytes(&t.ctx, raw).await.unwrap();
        assert_eq!(
-            parser.html.replace('\r', ""), // see comment in test_htmlparse_html()
+            parser.html.replace("\r", ""), // see comment in test_htmlparse_html()
            r##"<html>
  <p>
    this is <b>html</b>
@@ -440,9 +440,11 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
            .create_chat_with_contact("", "sender@testrun.org")
            .await;
        let raw = include_bytes!("../test-data/message/text_alt_plain_html.eml");
-        dc_receive_imf(&alice, raw, false).await.unwrap();
+        dc_receive_imf(&alice, raw, "INBOX", 1, false)
+            .await
+            .unwrap();
        let msg = alice.get_last_msg_in(chat.get_id()).await;
-        assert_ne!(msg.get_from_id(), ContactId::SELF);
+        assert_ne!(msg.get_from_id(), DC_CONTACT_ID_SELF);
        assert_eq!(msg.is_dc_message, MessengerMessage::No);
        assert!(!msg.is_forwarded());
        assert!(msg.get_text().unwrap().contains("this is plain"));
@@ -456,7 +458,7 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
            .await
            .unwrap();
        let msg = alice.get_last_msg_in(chat.get_id()).await;
-        assert_eq!(msg.get_from_id(), ContactId::SELF);
+        assert_eq!(msg.get_from_id(), DC_CONTACT_ID_SELF);
        assert_eq!(msg.is_dc_message, MessengerMessage::Yes);
        assert!(msg.is_forwarded());
        assert!(msg.get_text().unwrap().contains("this is plain"));
@@ -466,10 +468,10 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x

        // bob: check that bob also got the html-part of the forwarded message
        let bob = TestContext::new_bob().await;
-        let chat = bob.create_chat_with_contact("", "alice@example.org").await;
+        let chat = bob.create_chat_with_contact("", "alice@example.com").await;
        bob.recv_msg(&alice.pop_sent_msg().await).await;
        let msg = bob.get_last_msg_in(chat.get_id()).await;
-        assert_ne!(msg.get_from_id(), ContactId::SELF);
+        assert_ne!(msg.get_from_id(), DC_CONTACT_ID_SELF);
        assert_eq!(msg.is_dc_message, MessengerMessage::Yes);
        assert!(msg.is_forwarded());
        assert!(msg.get_text().unwrap().contains("this is plain"));
@@ -489,7 +491,9 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
            .create_chat_with_contact("", "sender@testrun.org")
            .await;
        let raw = include_bytes!("../test-data/message/text_alt_plain_html.eml");
-        dc_receive_imf(&alice, raw, false).await.unwrap();
+        dc_receive_imf(&alice, raw, "INBOX", 1, false)
+            .await
+            .unwrap();
        let msg = alice.get_last_msg_in(chat.get_id()).await;

        // forward the message to saved-messages,
@@ -506,7 +510,7 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
        alice.recv_msg(&msg).await;
        let chat = alice.get_self_chat().await;
        let msg = alice.get_last_msg_in(chat.get_id()).await;
-        assert_eq!(msg.get_from_id(), ContactId::SELF);
+        assert_eq!(msg.get_from_id(), DC_CONTACT_ID_SELF);
        assert_eq!(msg.is_dc_message, MessengerMessage::Yes);
        assert!(msg.get_showpadlock());
        assert!(msg.is_forwarded());
@@ -555,6 +559,8 @@ test some special html-characters as &lt; &gt; and &amp; but also &quot; and &#x
        dc_receive_imf(
            &t,
            include_bytes!("../test-data/message/cp1252-html.eml"),
+            "INBOX",
+            0,
            false,
        )
        .await?;
--- a/src/imap.rs
+++ b/src/imap.rs
--- a/src/imap/idle.rs
+++ b/src/imap/idle.rs
@@ -1,6 +1,6 @@
 use super::Imap;

-use anyhow::{bail, Context as _, Result};
+use anyhow::{bail, format_err, Result};
 use async_imap::extensions::idle::IdleResponse;
 use async_std::prelude::*;
 use std::time::{Duration, SystemTime};
@@ -31,7 +31,7 @@ impl Imap {
        let timeout = Duration::from_secs(23 * 60);
        let mut info = Default::default();

-        if self.server_sent_unsolicited_exists(context)? {
+        if self.server_sent_unsolicited_exists(context) {
            return Ok(info);
        }

@@ -90,8 +90,8 @@ impl Imap {
            let session = handle
                .done()
                .timeout(Duration::from_secs(15))
-                .await?
-                .context("IMAP IDLE protocol timed out")?;
+                .await
+                .map_err(|err| format_err!("IMAP IDLE protocol timed out: {}", err))??;
            self.session = Some(Session { inner: session });
        } else {
            warn!(context, "Attempted to idle without a session");
@@ -150,21 +150,19 @@ impl Imap {
                    }
                    if self.config.can_idle {
                        // we only fake-idled because network was gone during IDLE, probably
-                        break InterruptInfo::new(false);
+                        break InterruptInfo::new(false, None);
                    }
                    info!(context, "fake_idle is connected");
                    // we are connected, let's see if fetching messages results
                    // in anything.  If so, we behave as if IDLE had data but
                    // will have already fetched the messages so perform_*_fetch
                    // will not find any new.
-                    match self
-                        .fetch_new_messages(context, &watch_folder, false, false)
-                        .await
-                    {
+
+                    match self.fetch_new_messages(context, &watch_folder, false).await {
                        Ok(res) => {
                            info!(context, "fetch_new_messages returned {:?}", res);
                            if res {
-                                break InterruptInfo::new(false);
+                                break InterruptInfo::new(false, None);
                            }
                        }
                        Err(err) => {
--- a/src/imap/scan_folders.rs
+++ b/src/imap/scan_folders.rs
@@ -2,18 +2,15 @@ use std::{collections::BTreeMap, time::Instant};

 use anyhow::{Context as _, Result};

-use crate::config::Config;
 use crate::imap::Imap;
-use crate::log::LogExt;
+use crate::{config::Config, log::LogExt};
 use crate::{context::Context, imap::FolderMeaning};
-
-use async_std::stream::StreamExt;
+use async_std::prelude::*;

 use super::{get_folder_meaning, get_folder_meaning_by_name};

 impl Imap {
-    /// Returns true if folders were scanned, false if scanning was postponed.
-    pub(crate) async fn scan_folders(&mut self, context: &Context) -> Result<bool> {
+    pub async fn scan_folders(&mut self, context: &Context) -> Result<()> {
        // First of all, debounce to once per minute:
        let mut last_scan = context.last_full_folder_scan.lock().await;
        if let Some(last_scan) = *last_scan {
@@ -23,18 +20,28 @@ impl Imap {
                .await?;

            if elapsed_secs < debounce_secs {
-                return Ok(false);
+                return Ok(());
            }
        }
        info!(context, "Starting full folder scan");

        self.prepare(context).await?;
-        let folders = self.list_folders(context).await?;
-        let watched_folders = get_watched_folders(context).await?;
+        let session = self.session.as_mut();
+        let session = session.context("scan_folders(): IMAP No Connection established")?;
+        let folders: Vec<_> = session.list(Some(""), Some("*")).await?.collect().await;
+        let watched_folders = get_watched_folders(context).await;

        let mut folder_configs = BTreeMap::new();

        for folder in folders {
+            let folder = match folder {
+                Ok(f) => f,
+                Err(e) => {
+                    warn!(context, "Can't get folder: {}", e);
+                    continue;
+                }
+            };
+
            // Gmail labels are not folders and should be skipped. For example,
            // emails appear in the inbox and under "All Mail" as soon as it is
            // received. The code used to wrongly conclude that the email had
@@ -60,74 +67,54 @@ impl Imap {
            let is_drafts = folder_meaning == FolderMeaning::Drafts
                || (folder_meaning == FolderMeaning::Unknown
                    && folder_name_meaning == FolderMeaning::Drafts);
-            let is_spam_folder = folder_meaning == FolderMeaning::Spam
-                || (folder_meaning == FolderMeaning::Unknown
-                    && folder_name_meaning == FolderMeaning::Spam);

            // Don't scan folders that are watched anyway
            if !watched_folders.contains(&folder.name().to_string()) && !is_drafts {
                // Drain leftover unsolicited EXISTS messages
-                self.server_sent_unsolicited_exists(context)?;
+                self.server_sent_unsolicited_exists(context);

                loop {
-                    self.fetch_move_delete(context, folder.name(), is_spam_folder)
+                    self.fetch_new_messages(context, folder.name(), false)
                        .await
                        .ok_or_log_msg(context, "Can't fetch new msgs in scanned folder");

                    // If the server sent an unsocicited EXISTS during the fetch, we need to fetch again
-                    if !self.server_sent_unsolicited_exists(context)? {
+                    if !self.server_sent_unsolicited_exists(context) {
                        break;
                    }
                }
            }
        }

-        // Set the `ConfiguredSentboxFolder` or set it to `None` if the folder was deleted.
-        context
-            .set_config(
-                Config::ConfiguredSentboxFolder,
-                folder_configs
-                    .get(&Config::ConfiguredSentboxFolder)
-                    .map(|s| s.as_str()),
-            )
-            .await?;
+        // We iterate over both folder meanings to make sure that if e.g. the "Sent" folder was deleted,
+        // `ConfiguredSentboxFolder` is set to `None`:
+        for config in &[
+            Config::ConfiguredSentboxFolder,
+            Config::ConfiguredSpamFolder,
+        ] {
+            context
+                .set_config(*config, folder_configs.get(config).map(|s| s.as_str()))
+                .await?;
+        }

        last_scan.replace(Instant::now());
-        Ok(true)
-    }
-
-    /// Returns the names of all folders on the IMAP server.
-    pub async fn list_folders(
-        self: &mut Imap,
-        context: &Context,
-    ) -> Result<Vec<async_imap::types::Name>> {
-        let session = self.session.as_mut();
-        let session = session.context("No IMAP connection")?;
-        let list = session
-            .list(Some(""), Some("*"))
-            .await?
-            .filter_map(|f| f.ok_or_log_msg(context, "list_folders() can't get folder"));
-        Ok(list.collect().await)
+        Ok(())
    }
 }

-pub(crate) async fn get_watched_folder_configs(context: &Context) -> Result<Vec<Config>> {
-    let mut res = vec![Config::ConfiguredInboxFolder];
-    if context.get_config_bool(Config::SentboxWatch).await? {
-        res.push(Config::ConfiguredSentboxFolder);
-    }
-    if context.should_watch_mvbox().await? {
-        res.push(Config::ConfiguredMvboxFolder);
-    }
-    Ok(res)
-}
-
-pub(crate) async fn get_watched_folders(context: &Context) -> Result<Vec<String>> {
+pub(crate) async fn get_watched_folders(context: &Context) -> Vec<String> {
    let mut res = Vec::new();
-    for folder_config in get_watched_folder_configs(context).await? {
-        if let Some(folder) = context.get_config(folder_config).await? {
-            res.push(folder);
+    let folder_watched_configured = &[
+        (Config::SentboxWatch, Config::ConfiguredSentboxFolder),
+        (Config::MvboxWatch, Config::ConfiguredMvboxFolder),
+        (Config::InboxWatch, Config::ConfiguredInboxFolder),
+    ];
+    for (watched, configured) in folder_watched_configured {
+        if context.get_config_bool(*watched).await.unwrap_or_default() {
+            if let Ok(Some(folder)) = context.get_config(*configured).await {
+                res.push(folder);
+            }
        }
    }
-    Ok(res)
+    res
 }
--- a/src/imap/select_folder.rs
+++ b/src/imap/select_folder.rs
@@ -93,11 +93,7 @@ impl Imap {
        // select new folder
        if let Some(folder) = folder {
            if let Some(ref mut session) = &mut self.session {
-                let res = if self.config.can_condstore {
-                    session.select_condstore(folder).await
-                } else {
-                    session.select(folder).await
-                };
+                let res = session.select(folder).await;

                // <https://tools.ietf.org/html/rfc3501#section-6.3.1>
                // says that if the server reports select failure we are in
--- a/src/imex.rs
+++ b/src/imex.rs
@@ -16,21 +16,21 @@ use rand::{thread_rng, Rng};
 use crate::blob::BlobObject;
 use crate::chat::{self, delete_and_reset_all_device_msgs, ChatId};
 use crate::config::Config;
-use crate::contact::ContactId;
+use crate::constants::{Viewtype, DC_CONTACT_ID_SELF};
 use crate::context::Context;
 use crate::dc_tools::{
-    dc_create_folder, dc_delete_file, dc_delete_files_in_dir, dc_get_filesuffix_lc,
-    dc_open_file_std, dc_read_file, dc_write_file, time, EmailAddress,
+    dc_copy_file, dc_create_folder, dc_delete_file, dc_delete_files_in_dir, dc_get_filesuffix_lc,
+    dc_open_file_std, dc_read_file, dc_write_file, get_next_backup_path, time, EmailAddress,
 };
 use crate::e2ee;
 use crate::events::EventType;
 use crate::key::{self, DcKey, DcSecretKey, SignedPublicKey, SignedSecretKey};
 use crate::log::LogExt;
-use crate::message::{Message, MsgId, Viewtype};
+use crate::message::{Message, MsgId};
 use crate::mimeparser::SystemMessage;
 use crate::param::Param;
 use crate::pgp;
-use crate::sql;
+use crate::sql::{self, Sql};
 use crate::stock_str;

 // Name of the database file in the backup.
@@ -41,24 +41,24 @@ const BLOBS_BACKUP_NAME: &str = "blobs_backup";
 #[repr(u32)]
 pub enum ImexMode {
    /// Export all private keys and all public keys of the user to the
-    /// directory given as `path`.  The default key is written to the files `public-key-default.asc`
+    /// directory given as `param1`.  The default key is written to the files `public-key-default.asc`
    /// and `private-key-default.asc`, if there are more keys, they are written to files as
    /// `public-key-<id>.asc` and `private-key-<id>.asc`
    ExportSelfKeys = 1,

-    /// Import private keys found in the directory given as `path`.
+    /// Import private keys found in the directory given as `param1`.
    /// The last imported key is made the default keys unless its name contains the string `legacy`.
    /// Public keys are not imported.
    ImportSelfKeys = 2,

-    /// Export a backup to the directory given as `path` with the given `passphrase`.
+    /// Export a backup to the directory given as `param1`.
    /// The backup contains all contacts, chats, images and other data and device independent settings.
    /// The backup does not contain device dependent settings as ringtones or LED notification settings.
    /// The name of the backup is typically `delta-chat-<day>.tar`, if more than one backup is create on a day,
    /// the format is `delta-chat-<day>-<number>.tar`
    ExportBackup = 11,

-    /// `path` is the file (not: directory) to import. The file is normally
+    /// `param1` is the file (not: directory) to import. The file is normally
    /// created by DC_IMEX_EXPORT_BACKUP and detected by dc_imex_has_backup(). Importing a backup
    /// is only possible as long as the context is not configured or used in another way.
    ImportBackup = 12,
@@ -78,16 +78,11 @@ pub enum ImexMode {
 ///
 /// Only one import-/export-progress can run at the same time.
 /// To cancel an import-/export-progress, drop the future returned by this function.
-pub async fn imex(
-    context: &Context,
-    what: ImexMode,
-    path: &Path,
-    passphrase: Option<String>,
-) -> Result<()> {
+pub async fn imex(context: &Context, what: ImexMode, param1: &Path) -> Result<()> {
    let cancel = context.alloc_ongoing().await?;

    let res = async {
-        let success = imex_inner(context, what, path, passphrase).await;
+        let success = imex_inner(context, what, param1).await;
        match success {
            Ok(()) => {
                info!(context, "IMEX successfully completed");
@@ -120,10 +115,15 @@ async fn cleanup_aborted_imex(context: &Context, what: ImexMode) {
        dc_delete_file(context, context.get_dbfile()).await;
        dc_delete_files_in_dir(context, context.get_blobdir()).await;
    }
+    if what == ImexMode::ExportBackup || what == ImexMode::ImportBackup {
+        if let Err(e) = context.sql.open(context, context.get_dbfile(), false).await {
+            warn!(context, "Re-opening db after imex failed: {}", e);
+        }
+    }
 }

 /// Returns the filename of the backup found (otherwise an error)
-pub async fn has_backup(_context: &Context, dir_name: &Path) -> Result<String> {
+pub async fn has_backup(context: &Context, dir_name: &Path) -> Result<String> {
    let mut dir_iter = async_std::fs::read_dir(dir_name).await?;
    let mut newest_backup_name = "".to_string();
    let mut newest_backup_path: Option<PathBuf> = None;
@@ -145,6 +145,59 @@ pub async fn has_backup(_context: &Context, dir_name: &Path) -> Result<String> {
        }
    }

+    match newest_backup_path {
+        Some(path) => Ok(path.to_string_lossy().into_owned()),
+        None => has_backup_old(context, dir_name).await,
+        // When we decide to remove support for .bak backups, we can replace this with `None => bail!("no backup found in {}", dir_name.display()),`.
+    }
+}
+
+/// Returns the filename of the backup found (otherwise an error)
+pub async fn has_backup_old(context: &Context, dir_name: &Path) -> Result<String> {
+    let mut dir_iter = async_std::fs::read_dir(dir_name).await?;
+    let mut newest_backup_time = 0;
+    let mut newest_backup_name = "".to_string();
+    let mut newest_backup_path: Option<PathBuf> = None;
+    while let Some(dirent) = dir_iter.next().await {
+        if let Ok(dirent) = dirent {
+            let path = dirent.path();
+            let name = dirent.file_name();
+            let name = name.to_string_lossy();
+            if name.starts_with("delta-chat") && name.ends_with(".bak") {
+                let sql = Sql::new();
+                match sql.open(context, &path, true).await {
+                    Ok(_) => {
+                        let curr_backup_time = sql
+                            .get_raw_config_int("backup_time")
+                            .await?
+                            .unwrap_or_default();
+                        if curr_backup_time > newest_backup_time {
+                            newest_backup_path = Some(path);
+                            newest_backup_time = curr_backup_time;
+                        }
+                        info!(context, "backup_time of {} is {}", name, curr_backup_time);
+                        sql.close().await;
+                    }
+                    Err(e) => {
+                        warn!(
+                            context,
+                            "Found backup file {} which could not be opened: {}", name, e
+                        );
+                        // On some Android devices we can't open sql files that are not in our private directory
+                        // (see <https://github.com/deltachat/deltachat-android/issues/1768>). So, compare names
+                        // to still find the newest backup.
+                        let name: String = name.into();
+                        if newest_backup_time == 0
+                            && (newest_backup_name.is_empty() || name > newest_backup_name)
+                        {
+                            newest_backup_path = Some(path);
+                            newest_backup_name = name;
+                        }
+                    }
+                }
+            }
+        }
+    }
    match newest_backup_path {
        Some(path) => Ok(path.to_string_lossy().into_owned()),
        None => bail!("no backup found in {}", dir_name.display()),
@@ -165,6 +218,7 @@ pub async fn initiate_key_transfer(context: &Context) -> Result<String> {
 }

 async fn do_initiate_key_transfer(context: &Context) -> Result<String> {
+    let mut msg: Message;
    let setup_code = create_setup_code(context);
    /* this may require a keypair to be created. this may take a second ... */
    let setup_file_content = render_setup_file(context, &setup_code).await?;
@@ -176,17 +230,15 @@ async fn do_initiate_key_transfer(context: &Context) -> Result<String> {
    )
    .await?;

-    let chat_id = ChatId::create_for_contact(context, ContactId::SELF).await?;
-    let mut msg = Message {
-        viewtype: Viewtype::File,
-        ..Default::default()
-    };
+    let chat_id = ChatId::create_for_contact(context, DC_CONTACT_ID_SELF).await?;
+    msg = Message::default();
+    msg.viewtype = Viewtype::File;
    msg.param.set(Param::File, setup_file_blob.as_name());
    msg.subject = stock_str::ac_setup_msg_subject(context).await;
    msg.param
        .set(Param::MimeType, "application/autocrypt-setup");
    msg.param.set_cmd(SystemMessage::AutocryptSetupMessage);
-    msg.force_plaintext();
+    msg.param.set_int(Param::ForcePlaintext, 1);
    msg.param.set_int(Param::SkipAutocrypt, 1);

    let msg_id = chat::send_msg(context, chat_id, &mut msg).await?;
@@ -237,7 +289,7 @@ pub async fn render_setup_file(context: &Context, passphrase: &str) -> Result<St

    let msg_subj = stock_str::ac_setup_msg_subject(context).await;
    let msg_body = stock_str::ac_setup_msg_body(context).await;
-    let msg_body_html = msg_body.replace('\r', "").replace('\n', "<br>");
+    let msg_body_html = msg_body.replace("\r", "").replace("\n", "<br>");
    Ok(format!(
        concat!(
            "<!DOCTYPE html>\r\n",
@@ -351,8 +403,9 @@ async fn set_self_key(
        }
    };

-    let self_addr = context.get_primary_self_addr().await?;
-    let addr = EmailAddress::new(&self_addr)?;
+    let self_addr = context.get_config(Config::ConfiguredAddr).await?;
+    ensure!(self_addr.is_some(), "Missing self addr");
+    let addr = EmailAddress::new(&self_addr.unwrap_or_default())?;
    let keypair = pgp::KeyPair {
        addr,
        public: public_key,
@@ -396,12 +449,7 @@ fn normalize_setup_code(s: &str) -> String {
    out
 }

-async fn imex_inner(
-    context: &Context,
-    what: ImexMode,
-    path: &Path,
-    passphrase: Option<String>,
-) -> Result<()> {
+async fn imex_inner(context: &Context, what: ImexMode, path: &Path) -> Result<()> {
    info!(context, "Import/export dir: {}", path.display());
    ensure!(context.sql.is_open().await, "Database not opened.");
    context.emit_event(EventType::ImexProgress(10));
@@ -419,27 +467,26 @@ async fn imex_inner(
        ImexMode::ExportSelfKeys => export_self_keys(context, path).await,
        ImexMode::ImportSelfKeys => import_self_keys(context, path).await,

-        ImexMode::ExportBackup => {
-            export_backup(context, path, passphrase.unwrap_or_default()).await
-        }
-        ImexMode::ImportBackup => {
-            import_backup(context, path, passphrase.unwrap_or_default()).await?;
-            context.sql.run_migrations(context).await
-        }
+        ImexMode::ExportBackup => export_backup(context, path).await,
+        // import_backup() will call import_backup_old() if this is an old backup.
+        ImexMode::ImportBackup => import_backup(context, path).await,
    }
 }

-/// Imports backup into the currently open database.
-///
-/// The contents of the currently open database will be lost.
-///
-/// `passphrase` is the passphrase used to open backup database. If backup is unencrypted, pass
-/// empty string here.
-async fn import_backup(
-    context: &Context,
-    backup_to_import: &Path,
-    passphrase: String,
-) -> Result<()> {
+/// Import Backup
+async fn import_backup(context: &Context, backup_to_import: &Path) -> Result<()> {
+    if backup_to_import.to_string_lossy().ends_with(".bak") {
+        // Backwards compability
+        return import_backup_old(context, backup_to_import).await;
+    }
+
+    info!(
+        context,
+        "Import \"{}\" to \"{}\".",
+        backup_to_import.display(),
+        context.get_dbfile().display()
+    );
+
    ensure!(
        !context.is_configured().await?,
        "Cannot import backups to accounts in use."
@@ -448,19 +495,15 @@ async fn import_backup(
        !context.scheduler.read().await.is_running(),
        "cannot import backup, IO already running"
    );
+    context.sql.close().await;
+    dc_delete_file(context, context.get_dbfile()).await;
+    ensure!(
+        !context.get_dbfile().exists().await,
+        "Cannot delete old database."
+    );

    let backup_file = File::open(backup_to_import).await?;
    let file_size = backup_file.metadata().await?.len();
-    info!(
-        context,
-        "Import \"{}\" ({} bytes) to \"{}\".",
-        backup_to_import.display(),
-        file_size,
-        context.get_dbfile().display()
-    );
-
-    context.sql.config_cache.write().await.clear();
-
    let archive = Archive::new(backup_file);

    let mut entries = archive.entries()?;
@@ -479,15 +522,11 @@ async fn import_backup(
        if f.path()?.file_name() == Some(OsStr::new(DBFILE_BACKUP_NAME)) {
            // async_tar can't unpack to a specified file name, so we just unpack to the blobdir and then move the unpacked file.
            f.unpack_in(context.get_blobdir()).await?;
-            let unpacked_database = context.get_blobdir().join(DBFILE_BACKUP_NAME);
-            context
-                .sql
-                .import(&unpacked_database, passphrase.clone())
-                .await
-                .context("cannot import unpacked database")?;
-            fs::remove_file(unpacked_database)
-                .await
-                .context("cannot remove unpacked database")?;
+            fs::rename(
+                context.get_blobdir().join(DBFILE_BACKUP_NAME),
+                context.get_dbfile(),
+            )
+            .await?;
        } else {
            // async_tar will unpack to blobdir/BLOBS_BACKUP_NAME, so we move the file afterwards.
            f.unpack_in(context.get_blobdir()).await?;
@@ -502,52 +541,136 @@ async fn import_backup(
        }
    }

+    context
+        .sql
+        .open(context, context.get_dbfile(), false)
+        .await
+        .context("Could not re-open db")?;
+
    delete_and_reset_all_device_msgs(context).await?;

    Ok(())
 }

+async fn import_backup_old(context: &Context, backup_to_import: &Path) -> Result<()> {
+    info!(
+        context,
+        "Import \"{}\" to \"{}\".",
+        backup_to_import.display(),
+        context.get_dbfile().display()
+    );
+
+    ensure!(
+        !context.is_configured().await?,
+        "Cannot import backups to accounts in use."
+    );
+    ensure!(
+        !context.scheduler.read().await.is_running(),
+        "cannot import backup, IO already running"
+    );
+    context.sql.close().await;
+    dc_delete_file(context, context.get_dbfile()).await;
+    ensure!(
+        !context.get_dbfile().exists().await,
+        "Cannot delete old database."
+    );
+
+    ensure!(
+        dc_copy_file(context, backup_to_import, context.get_dbfile()).await,
+        "could not copy file"
+    );
+    /* error already logged */
+    /* re-open copied database file */
+    context
+        .sql
+        .open(context, context.get_dbfile(), false)
+        .await
+        .context("Could not re-open db")?;
+
+    delete_and_reset_all_device_msgs(context).await?;
+
+    let total_files_cnt = context
+        .sql
+        .count("SELECT COUNT(*) FROM backup_blobs;", paramsv![])
+        .await?;
+    info!(
+        context,
+        "***IMPORT-in-progress: total_files_cnt={:?}", total_files_cnt,
+    );
+
+    // Load IDs only for now, without the file contents, to avoid
+    // consuming too much memory.
+    let file_ids = context
+        .sql
+        .query_map(
+            "SELECT id FROM backup_blobs ORDER BY id",
+            paramsv![],
+            |row| row.get(0),
+            |ids| {
+                ids.collect::<std::result::Result<Vec<i64>, _>>()
+                    .map_err(Into::into)
+            },
+        )
+        .await?;
+
+    let mut all_files_extracted = true;
+    for (processed_files_cnt, file_id) in file_ids.into_iter().enumerate() {
+        // Load a single blob into memory
+        let (file_name, file_blob) = context
+            .sql
+            .query_row(
+                "SELECT file_name, file_content FROM backup_blobs WHERE id = ?",
+                paramsv![file_id],
+                |row| {
+                    let file_name: String = row.get(0)?;
+                    let file_blob: Vec<u8> = row.get(1)?;
+                    Ok((file_name, file_blob))
+                },
+            )
+            .await?;
+
+        if context.shall_stop_ongoing().await {
+            all_files_extracted = false;
+            break;
+        }
+        let mut permille = processed_files_cnt * 1000 / total_files_cnt;
+        if permille < 10 {
+            permille = 10
+        }
+        if permille > 990 {
+            permille = 990
+        }
+        context.emit_event(EventType::ImexProgress(permille));
+        if file_blob.is_empty() {
+            continue;
+        }
+
+        let path_filename = context.get_blobdir().join(file_name);
+        dc_write_file(context, &path_filename, &file_blob).await?;
+    }
+
+    if all_files_extracted {
+        // only delete backup_blobs if all files were successfully extracted
+        context
+            .sql
+            .execute("DROP TABLE backup_blobs;", paramsv![])
+            .await?;
+        context.sql.execute("VACUUM;", paramsv![]).await.ok();
+        Ok(())
+    } else {
+        bail!("received stop signal");
+    }
+}
+
 /*******************************************************************************
 * Export backup
 ******************************************************************************/
-
-/// Returns Ok((temp_db_path, temp_path, dest_path)) on success. Unencrypted database can be
-/// written to temp_db_path. The backup can then be written to temp_path. If the backup succeeded,
-/// it can be renamed to dest_path. This guarantees that the backup is complete.
-async fn get_next_backup_path(
-    folder: &Path,
-    backup_time: i64,
-) -> Result<(PathBuf, PathBuf, PathBuf)> {
-    let folder = PathBuf::from(folder);
-    let stem = chrono::NaiveDateTime::from_timestamp(backup_time, 0)
-        // Don't change this file name format, in has_backup() we use string comparison to determine which backup is newer:
-        .format("delta-chat-backup-%Y-%m-%d")
-        .to_string();
-
-    // 64 backup files per day should be enough for everyone
-    for i in 0..64 {
-        let mut tempdbfile = folder.clone();
-        tempdbfile.push(format!("{}-{:02}.db", stem, i));
-
-        let mut tempfile = folder.clone();
-        tempfile.push(format!("{}-{:02}.tar.part", stem, i));
-
-        let mut destfile = folder.clone();
-        destfile.push(format!("{}-{:02}.tar", stem, i));
-
-        if !tempdbfile.exists().await && !tempfile.exists().await && !destfile.exists().await {
-            return Ok((tempdbfile, tempfile, destfile));
-        }
-    }
-    bail!("could not create backup file, disk full?");
-}
-
-async fn export_backup(context: &Context, dir: &Path, passphrase: String) -> Result<()> {
+#[allow(unused)]
+async fn export_backup(context: &Context, dir: &Path) -> Result<()> {
    // get a fine backup file name (the name includes the date so that multiple backup instances are possible)
    let now = time();
-    let (temp_db_path, temp_path, dest_path) = get_next_backup_path(dir, now).await?;
-    let _d1 = DeleteOnDrop(temp_db_path.clone());
-    let _d2 = DeleteOnDrop(temp_path.clone());
+    let (temp_path, dest_path) = get_next_backup_path(dir, now).await?;
+    let _d = DeleteOnDrop(temp_path.clone());

    context
        .sql
@@ -559,14 +682,16 @@ async fn export_backup(context: &Context, dir: &Path, passphrase: String) -> Res
        .sql
        .execute("VACUUM;", paramsv![])
        .await
-        .map_err(|e| warn!(context, "Vacuum failed, exporting anyway {}", e))
-        .ok();
+        .map_err(|e| warn!(context, "Vacuum failed, exporting anyway {}", e));

    ensure!(
        !context.scheduler.read().await.is_running(),
        "cannot export backup, IO already running"
    );

+    // we close the database during the export
+    context.sql.close().await;
+
    info!(
        context,
        "Backup '{}' to '{}'.",
@@ -574,13 +699,10 @@ async fn export_backup(context: &Context, dir: &Path, passphrase: String) -> Res
        dest_path.display(),
    );

-    context
-        .sql
-        .export(&temp_db_path, passphrase)
-        .await
-        .with_context(|| format!("failed to backup plaintext database to {:?}", temp_db_path))?;
+    let res = export_backup_inner(context, &temp_path).await;

-    let res = export_backup_inner(context, &temp_db_path, &temp_path).await;
+    // we re-open the database after export is finished
+    context.sql.open(context, context.get_dbfile(), false).await;

    match &res {
        Ok(_) => {
@@ -599,21 +721,18 @@ impl Drop for DeleteOnDrop {
    fn drop(&mut self) {
        let file = self.0.clone();
        // Not using dc_delete_file() here because it would send a DeletedBlobFile event
-        async_std::task::block_on(fs::remove_file(file)).ok();
+        async_std::task::block_on(async move { fs::remove_file(file).await.ok() });
    }
 }

-async fn export_backup_inner(
-    context: &Context,
-    temp_db_path: &Path,
-    temp_path: &Path,
-) -> Result<()> {
+async fn export_backup_inner(context: &Context, temp_path: &PathBuf) -> Result<()> {
    let file = File::create(temp_path).await?;

    let mut builder = async_tar::Builder::new(file);

+    // append_path_with_name() wants the source path as the first argument, append_dir_all() wants it as the second argument.
    builder
-        .append_path_with_name(temp_db_path, DBFILE_BACKUP_NAME)
+        .append_path_with_name(context.get_dbfile(), DBFILE_BACKUP_NAME)
        .await?;

    let read_dir: Vec<_> = fs::read_dir(context.get_blobdir()).await?.collect().await;
@@ -817,7 +936,9 @@ mod tests {

    #[async_std::test]
    async fn test_render_setup_file() {
-        let t = TestContext::new_alice().await;
+        let t = TestContext::new().await;
+
+        t.configure_alice().await;
        let msg = render_setup_file(&t, "hello").await.unwrap();
        println!("{}", &msg);
        // Check some substrings, indicating things got substituted.
@@ -834,10 +955,11 @@ mod tests {

    #[async_std::test]
    async fn test_render_setup_file_newline_replace() {
-        let t = TestContext::new_alice().await;
+        let t = TestContext::new().await;
        t.set_stock_translation(StockMessage::AcSetupMsgBody, "hello\r\nthere".to_string())
            .await
            .unwrap();
+        t.configure_alice().await;
        let msg = render_setup_file(&t, "pw").await.unwrap();
        println!("{}", &msg);
        assert!(msg.contains("<p>hello<br>there</p>"));
@@ -890,66 +1012,20 @@ mod tests {

    #[async_std::test]
    async fn test_export_and_import_key() {
-        let context = TestContext::new_alice().await;
+        let context = TestContext::new().await;
+        context.configure_alice().await;
        let blobdir = context.ctx.get_blobdir();
-        if let Err(err) = imex(&context.ctx, ImexMode::ExportSelfKeys, blobdir, None).await {
+        if let Err(err) = imex(&context.ctx, ImexMode::ExportSelfKeys, blobdir).await {
            panic!("got error on export: {:?}", err);
        }

-        let context2 = TestContext::new_alice().await;
-        if let Err(err) = imex(&context2.ctx, ImexMode::ImportSelfKeys, blobdir, None).await {
+        let context2 = TestContext::new().await;
+        context2.configure_alice().await;
+        if let Err(err) = imex(&context2.ctx, ImexMode::ImportSelfKeys, blobdir).await {
            panic!("got error on import: {:?}", err);
        }
    }

-    #[async_std::test]
-    async fn test_export_and_import_backup() -> Result<()> {
-        let backup_dir = tempfile::tempdir().unwrap();
-
-        let context1 = TestContext::new_alice().await;
-        assert!(context1.is_configured().await?);
-
-        let context2 = TestContext::new().await;
-        assert!(!context2.is_configured().await?);
-        assert!(has_backup(&context2, backup_dir.path().as_ref())
-            .await
-            .is_err());
-
-        // export from context1
-        assert!(imex(
-            &context1,
-            ImexMode::ExportBackup,
-            backup_dir.path().as_ref(),
-            None,
-        )
-        .await
-        .is_ok());
-        let _event = context1
-            .evtracker
-            .get_matching(|evt| matches!(evt, EventType::ImexProgress(1000)))
-            .await;
-
-        // import to context2
-        let backup = has_backup(&context2, backup_dir.path().as_ref()).await?;
-        assert!(
-            imex(&context2, ImexMode::ImportBackup, backup.as_ref(), None)
-                .await
-                .is_ok()
-        );
-        let _event = context2
-            .evtracker
-            .get_matching(|evt| matches!(evt, EventType::ImexProgress(1000)))
-            .await;
-
-        assert!(context2.is_configured().await?);
-        assert_eq!(
-            context2.get_config(Config::Addr).await?,
-            Some("alice@example.org".to_string())
-        );
-
-        Ok(())
-    }
-
    #[test]
    fn test_normalize_setup_code() {
        let norm = normalize_setup_code("123422343234423452346234723482349234");
--- a/src/job.rs
+++ b/src/job.rs
--- a/src/key.rs
+++ b/src/key.rs
@@ -4,7 +4,7 @@ use std::collections::BTreeMap;
 use std::fmt;
 use std::io::Cursor;

-use anyhow::{format_err, Context as _, Result};
+use anyhow::{format_err, Result};
 use async_trait::async_trait;
 use num_traits::FromPrimitive;
 use pgp::composed::Deserializable;
@@ -50,7 +50,8 @@ pub trait DcKey: Serialize + Deserializable + KeyTrait + Clone {
    /// the ASCII-armored representation.
    fn from_asc(data: &str) -> Result<(Self::KeyType, BTreeMap<String, String>)> {
        let bytes = data.as_bytes();
-        Self::KeyType::from_armor_single(Cursor::new(bytes)).context("rPGP error")
+        Self::KeyType::from_armor_single(Cursor::new(bytes))
+            .map_err(|err| format_err!("rPGP error: {}", err))
    }

    /// Load the users' default key from the database.
@@ -91,17 +92,16 @@ impl DcKey for SignedPublicKey {
    type KeyType = SignedPublicKey;

    async fn load_self(context: &Context) -> Result<Self::KeyType> {
-        let addr = context.get_primary_self_addr().await?;
        match context
            .sql
            .query_row_optional(
                r#"
            SELECT public_key
              FROM keypairs
-             WHERE addr=?
+             WHERE addr=(SELECT value FROM config WHERE keyname="configured_addr")
               AND is_default=1;
            "#,
-                paramsv![addr],
+                paramsv![],
                |row| {
                    let bytes: Vec<u8> = row.get(0)?;
                    Ok(bytes)
@@ -199,7 +199,10 @@ impl DcSecretKey for SignedSecretKey {
 }

 async fn generate_keypair(context: &Context) -> Result<KeyPair> {
-    let addr = context.get_primary_self_addr().await?;
+    let addr = context
+        .get_config(Config::ConfiguredAddr)
+        .await?
+        .ok_or_else(|| format_err!("No address configured"))?;
    let addr = EmailAddress::new(&addr)?;
    let _guard = context.generating_key_mutex.lock().await;

@@ -286,17 +289,17 @@ pub async fn store_self_keypair(
            paramsv![public_key, secret_key],
        )
        .await
-        .context("failed to remove old use of key")?;
+        .map_err(|err| err.context("failed to remove old use of key"))?;
    if default == KeyPairUse::Default {
        context
            .sql
            .execute("UPDATE keypairs SET is_default=0;", paramsv![])
            .await
-            .context("failed to clear default")?;
+            .map_err(|err| err.context("failed to clear default"))?;
    }
    let is_default = match default {
-        KeyPairUse::Default => i32::from(true),
-        KeyPairUse::ReadOnly => i32::from(false),
+        KeyPairUse::Default => true as i32,
+        KeyPairUse::ReadOnly => false as i32,
    };

    let addr = keypair.addr.to_string();
@@ -310,13 +313,13 @@ pub async fn store_self_keypair(
            paramsv![addr, is_default, public_key, secret_key, t],
        )
        .await
-        .context("failed to insert keypair")?;
+        .map_err(|err| err.context("failed to insert keypair"))?;

    Ok(())
 }

 /// A key fingerprint
-#[derive(Clone, Eq, PartialEq, Hash, serde::Serialize, serde::Deserialize)]
+#[derive(Clone, Eq, PartialEq, Hash)]
 pub struct Fingerprint(Vec<u8>);

 impl Fingerprint {
@@ -507,7 +510,8 @@ i8pcjGO+IZffvyZJVRWfVooBJmWWbPB1pueo3tx8w3+fcuzpxz+RLFKaPyqXO+dD
    #[async_std::test]
    async fn test_load_self_existing() {
        let alice = alice_keypair();
-        let t = TestContext::new_alice().await;
+        let t = TestContext::new().await;
+        t.configure_alice().await;
        let pubkey = SignedPublicKey::load_self(&t).await.unwrap();
        assert_eq!(alice.public, pubkey);
        let seckey = SignedSecretKey::load_self(&t).await.unwrap();
@@ -517,7 +521,7 @@ i8pcjGO+IZffvyZJVRWfVooBJmWWbPB1pueo3tx8w3+fcuzpxz+RLFKaPyqXO+dD
    #[async_std::test]
    async fn test_load_self_generate_public() {
        let t = TestContext::new().await;
-        t.set_config(Config::ConfiguredAddr, Some("alice@example.org"))
+        t.set_config(Config::ConfiguredAddr, Some("alice@example.com"))
            .await
            .unwrap();
        let key = SignedPublicKey::load_self(&t).await;
@@ -527,7 +531,7 @@ i8pcjGO+IZffvyZJVRWfVooBJmWWbPB1pueo3tx8w3+fcuzpxz+RLFKaPyqXO+dD
    #[async_std::test]
    async fn test_load_self_generate_secret() {
        let t = TestContext::new().await;
-        t.set_config(Config::ConfiguredAddr, Some("alice@example.org"))
+        t.set_config(Config::ConfiguredAddr, Some("alice@example.com"))
            .await
            .unwrap();
        let key = SignedSecretKey::load_self(&t).await;
@@ -539,7 +543,7 @@ i8pcjGO+IZffvyZJVRWfVooBJmWWbPB1pueo3tx8w3+fcuzpxz+RLFKaPyqXO+dD
        use std::thread;

        let t = TestContext::new().await;
-        t.set_config(Config::ConfiguredAddr, Some("alice@example.org"))
+        t.set_config(Config::ConfiguredAddr, Some("alice@example.com"))
            .await
            .unwrap();
        let thr0 = {
@@ -585,6 +589,27 @@ i8pcjGO+IZffvyZJVRWfVooBJmWWbPB1pueo3tx8w3+fcuzpxz+RLFKaPyqXO+dD
        assert_eq!(nrows().await, 1);
    }

+    // Convenient way to create a new key if you need one, run with
+    // `cargo test key::tests::gen_key`.
+    // #[test]
+    // fn gen_key() {
+    //     let name = "fiona";
+    //     let keypair = crate::pgp::create_keypair(
+    //         EmailAddress::new(&format!("{}@example.net", name)).unwrap(),
+    //     )
+    //     .unwrap();
+    //     std::fs::write(
+    //         format!("test-data/key/{}-public.asc", name),
+    //         keypair.public.to_base64(),
+    //     )
+    //     .unwrap();
+    //     std::fs::write(
+    //         format!("test-data/key/{}-secret.asc", name),
+    //         keypair.secret.to_base64(),
+    //     )
+    //     .unwrap();
+    // }
+
    #[test]
    fn test_fingerprint_from_str() {
        let res = Fingerprint::new(vec![
--- a/src/keyring.rs
+++ b/src/keyring.rs
@@ -79,7 +79,8 @@ mod tests {
    #[async_std::test]
    async fn test_keyring_load_self() {
        // new_self() implies load_self()
-        let t = TestContext::new_alice().await;
+        let t = TestContext::new().await;
+        t.configure_alice().await;
        let alice = alice_keypair();

        let pub_ring: Keyring<SignedPublicKey> = Keyring::new_self(&t).await.unwrap();
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,14 +7,12 @@
    clippy::all,
    clippy::indexing_slicing,
    clippy::wildcard_imports,
-    clippy::needless_borrow,
-    clippy::cast_lossless
+    clippy::needless_borrow
 )]
 #![allow(
    clippy::match_bool,
    clippy::eval_order_dependence,
-    clippy::bool_assert_comparison,
-    clippy::manual_split_once
+    clippy::bool_assert_comparison
 )]

 #[macro_use]
@@ -88,7 +86,6 @@ pub mod stock_str;
 mod sync;
 mod token;
 mod update_helper;
-pub mod webxdc;
 #[macro_use]
 mod dehtml;
 mod color;
--- a/src/location.rs
+++ b/src/location.rs
@@ -1,20 +1,20 @@
 //! Location handling.
 use std::convert::TryFrom;

-use anyhow::{ensure, Context as _, Result};
-use async_std::channel::Receiver;
-use async_std::future::timeout;
+use anyhow::{ensure, Result};
 use bitflags::bitflags;
 use quick_xml::events::{BytesEnd, BytesStart, BytesText};
-use std::time::Duration;

 use crate::chat::{self, ChatId};
-use crate::contact::ContactId;
+use crate::config::Config;
+use crate::constants::{Viewtype, DC_CONTACT_ID_SELF};
 use crate::context::Context;
-use crate::dc_tools::{duration_to_str, time};
+use crate::dc_tools::time;
 use crate::events::EventType;
-use crate::message::{Message, MsgId, Viewtype};
+use crate::job::{self, Job};
+use crate::message::{Message, MsgId};
 use crate::mimeparser::SystemMessage;
+use crate::param::Params;
 use crate::stock_str;

 /// Location record
@@ -25,7 +25,7 @@ pub struct Location {
    pub longitude: f64,
    pub accuracy: f64,
    pub timestamp: i64,
-    pub contact_id: ContactId,
+    pub contact_id: u32,
    pub msg_id: u32,
    pub chat_id: ChatId,
    pub marker: Option<String>,
@@ -101,10 +101,10 @@ impl Kml {
            let val = event.unescape_and_decode(reader).unwrap_or_default();

            let val = val
-                .replace('\n', "")
-                .replace('\r', "")
-                .replace('\t', "")
-                .replace(' ', "");
+                .replace("\n", "")
+                .replace("\r", "")
+                .replace("\t", "")
+                .replace(" ", "");

            if self.tag.contains(KmlTag::WHEN) && val.len() >= 19 {
                // YYYY-MM-DDTHH:MM:SSZ
@@ -223,15 +223,36 @@ pub async fn send_locations_to_chat(
            .unwrap_or_default();
    } else if 0 == seconds && is_sending_locations_before {
        let stock_str = stock_str::msg_location_disabled(context).await;
-        chat::add_info_msg(context, chat_id, &stock_str, now).await?;
+        chat::add_info_msg(context, chat_id, stock_str, now).await?;
    }
    context.emit_event(EventType::ChatModified(chat_id));
    if 0 != seconds {
-        context.interrupt_location().await;
+        schedule_maybe_send_locations(context, false).await?;
+        job::add(
+            context,
+            job::Job::new(
+                job::Action::MaybeSendLocationsEnded,
+                chat_id.to_u32(),
+                Params::new(),
+                seconds + 1,
+            ),
+        )
+        .await?;
    }
    Ok(())
 }

+async fn schedule_maybe_send_locations(context: &Context, force_schedule: bool) -> Result<()> {
+    if force_schedule || !job::action_exists(context, job::Action::MaybeSendLocations).await? {
+        job::add(
+            context,
+            job::Job::new(job::Action::MaybeSendLocations, 0, Params::new(), 60),
+        )
+        .await?;
+    };
+    Ok(())
+}
+
 /// Returns whether `chat_id` or any chat is sending locations.
 ///
 /// If `chat_id` is `Some` only that chat is checked, otherwise returns `true` if any chat
@@ -293,18 +314,18 @@ pub async fn set(context: &Context, latitude: f64, longitude: f64, accuracy: f64
                        accuracy,
                        time(),
                        chat_id,
-                        ContactId::SELF,
+                        DC_CONTACT_ID_SELF,
                    ]
            ).await {
                warn!(context, "failed to store location {:?}", err);
            } else {
-                info!(context, "stored location for chat {}", chat_id);
                continue_streaming = true;
            }
        }
        if continue_streaming {
-            context.emit_event(EventType::LocationChanged(Some(ContactId::SELF)));
+            context.emit_event(EventType::LocationChanged(Some(DC_CONTACT_ID_SELF)));
        };
+        schedule_maybe_send_locations(context, false).await.ok();
    }

    continue_streaming
@@ -403,7 +424,10 @@ pub async fn delete_all(context: &Context) -> Result<()> {
 pub async fn get_kml(context: &Context, chat_id: ChatId) -> Result<(String, u32)> {
    let mut last_added_location_id = 0;

-    let self_addr = context.get_primary_self_addr().await?;
+    let self_addr = context
+        .get_config(Config::ConfiguredAddr)
+        .await?
+        .unwrap_or_default();

    let (locations_send_begin, locations_send_until, locations_last_sent) = context.sql.query_row(
        "SELECT locations_send_begin, locations_send_until, locations_last_sent  FROM chats  WHERE id=?;",
@@ -438,10 +462,10 @@ pub async fn get_kml(context: &Context, chat_id: ChatId) -> Result<(String, u32)
             GROUP BY timestamp \
             ORDER BY timestamp;",
                paramsv![
-                    ContactId::SELF,
+                    DC_CONTACT_ID_SELF,
                    locations_send_begin,
                    locations_last_sent,
-                    ContactId::SELF
+                    DC_CONTACT_ID_SELF
                ],
                |row| {
                    let location_id: i32 = row.get(0)?;
@@ -534,7 +558,7 @@ pub async fn set_msg_location_id(context: &Context, msg_id: MsgId, location_id:
 pub(crate) async fn save(
    context: &Context,
    chat_id: ChatId,
-    contact_id: ContactId,
+    contact_id: u32,
    locations: &[Location],
    independent: bool,
 ) -> Result<Option<u32>> {
@@ -561,12 +585,12 @@ pub(crate) async fn save(
            conn.prepare_cached("SELECT id FROM locations WHERE timestamp=? AND from_id=?")?;
        let mut stmt_insert = conn.prepare_cached(stmt_insert)?;

-        let exists = stmt_test.exists(paramsv![timestamp, contact_id])?;
+        let exists = stmt_test.exists(paramsv![timestamp, contact_id as i32])?;

        if independent || !exists {
            stmt_insert.execute(paramsv![
                timestamp,
-                contact_id,
+                contact_id as i32,
                chat_id,
                latitude,
                longitude,
@@ -587,140 +611,147 @@ pub(crate) async fn save(
    Ok(newest_location_id)
 }

-pub(crate) async fn location_loop(context: &Context, interrupt_receiver: Receiver<()>) {
-    loop {
-        let next_event = match maybe_send_locations(context).await {
-            Err(err) => {
-                warn!(context, "maybe_send_locations failed: {}", err);
-                Some(60) // Retry one minute later.
-            }
-            Ok(next_event) => next_event,
-        };
-
-        let duration = if let Some(next_event) = next_event {
-            Duration::from_secs(next_event)
-        } else {
-            Duration::from_secs(86400)
-        };
-
-        info!(
-            context,
-            "Location loop is waiting for {} or interrupt",
-            duration_to_str(duration)
-        );
-        timeout(duration, interrupt_receiver.recv()).await.ok();
-    }
-}
-
-/// Returns number of seconds until the next time location streaming for some chat ends
-/// automatically.
-async fn maybe_send_locations(context: &Context) -> Result<Option<u64>> {
-    let mut next_event: Option<u64> = None;
-
+pub(crate) async fn job_maybe_send_locations(context: &Context, _job: &Job) -> job::Status {
    let now = time();
+    let mut continue_streaming = false;
+    info!(
+        context,
+        " ----------------- MAYBE_SEND_LOCATIONS -------------- ",
+    );
+
    let rows = context
        .sql
        .query_map(
-            "SELECT id, locations_send_begin, locations_send_until, locations_last_sent
-             FROM chats
-             WHERE locations_send_until>0",
-            [],
+            "SELECT id, locations_send_begin, locations_last_sent \
+         FROM chats \
+         WHERE locations_send_until>?;",
+            paramsv![now],
            |row| {
                let chat_id: ChatId = row.get(0)?;
                let locations_send_begin: i64 = row.get(1)?;
-                let locations_send_until: i64 = row.get(2)?;
-                let locations_last_sent: i64 = row.get(3)?;
-                Ok((
-                    chat_id,
-                    locations_send_begin,
-                    locations_send_until,
-                    locations_last_sent,
-                ))
+                let locations_last_sent: i64 = row.get(2)?;
+                continue_streaming = true;
+
+                // be a bit tolerant as the timer may not align exactly with time(NULL)
+                if now - locations_last_sent < (60 - 3) {
+                    Ok(None)
+                } else {
+                    Ok(Some((chat_id, locations_send_begin, locations_last_sent)))
+                }
            },
            |rows| {
-                rows.collect::<std::result::Result<Vec<_>, _>>()
+                rows.filter_map(|v| v.transpose())
+                    .collect::<std::result::Result<Vec<_>, _>>()
                    .map_err(Into::into)
            },
        )
-        .await
-        .context("failed to query location streaming chats")?;
+        .await;

-    for (chat_id, locations_send_begin, locations_send_until, locations_last_sent) in rows {
-        if locations_send_begin > 0 && locations_send_until > now {
-            let can_send = now > locations_last_sent + 60;
-            let has_locations = context
-                .sql
-                .exists(
-                    "SELECT COUNT(id) \
+    if let Ok(rows) = rows {
+        let mut msgs = Vec::new();
+
+        {
+            let conn = job_try!(context.sql.get_conn().await);
+
+            let mut stmt_locations = job_try!(conn.prepare_cached(
+                "SELECT id \
     FROM locations \
     WHERE from_id=? \
     AND timestamp>=? \
     AND timestamp>? \
-     AND independent=0",
-                    paramsv![ContactId::SELF, locations_send_begin, locations_last_sent,],
-                )
-                .await?;
+     AND independent=0 \
+             ORDER BY timestamp;",
+            ));

-            next_event = next_event
-                .into_iter()
-                .chain(u64::try_from(locations_send_until - now).into_iter())
-                .min();
-
-            if has_locations {
-                if can_send {
-                    // Send location-only message.
-                    // Pending locations are attached automatically to every message,
+            for (chat_id, locations_send_begin, locations_last_sent) in &rows {
+                if !stmt_locations
+                    .exists(paramsv![
+                        DC_CONTACT_ID_SELF,
+                        *locations_send_begin,
+                        *locations_last_sent,
+                    ])
+                    .unwrap_or_default()
+                {
+                    // if there is no new location, there's nothing to send.
+                    // however, maybe we want to bypass this test eg. 15 minutes
+                } else {
+                    // pending locations are attached automatically to every message,
                    // so also to this empty text message.
-                    info!(
-                        context,
-                        "Chat {} has pending locations, sending them.", chat_id
-                    );
+                    // DC_CMD_LOCATION is only needed to create a nicer subject.
+                    //
+                    // for optimisation and to avoid flooding the sending queue,
+                    // we could sending these messages only if we're really online.
+                    // the easiest way to determine this, is to check for an empty message queue.
+                    // (might not be 100%, however, as positions are sent combined later
+                    // and dc_set_location() is typically called periodically, this is ok)
                    let mut msg = Message::new(Viewtype::Text);
                    msg.hidden = true;
                    msg.param.set_cmd(SystemMessage::LocationOnly);
-                    chat::send_msg(context, chat_id, &mut msg).await?;
-                } else {
-                    // Wait until pending locations can be sent.
-                    info!(
-                        context,
-                        "Chat {} has pending locations, but they can't be sent yet.", chat_id
-                    );
-                    next_event = next_event
-                        .into_iter()
-                        .chain(u64::try_from(locations_last_sent + 61 - now).into_iter())
-                        .min();
+                    msgs.push((*chat_id, msg));
                }
-            } else {
-                info!(
-                    context,
-                    "Chat {} has location streaming enabled, but no pending locations.", chat_id
-                );
            }
-        } else {
-            // Location streaming was either explicitly disabled (locations_send_begin = 0) or
-            // locations_send_until is in the past.
-            info!(
-                context,
-                "Disabling location streaming for chat {}.", chat_id
-            );
-            context
-                .sql
-                .execute(
-                    "UPDATE chats \
-                         SET locations_send_begin=0, locations_send_until=0 \
-                         WHERE id=?",
-                    paramsv![chat_id],
-                )
-                .await
-                .context("failed to disable location streaming")?;
+        }

-            let stock_str = stock_str::msg_location_disabled(context).await;
-            chat::add_info_msg(context, chat_id, &stock_str, now).await?;
-            context.emit_event(EventType::ChatModified(chat_id));
+        for (chat_id, mut msg) in msgs.into_iter() {
+            // TODO: better error handling
+            chat::send_msg(context, chat_id, &mut msg)
+                .await
+                .unwrap_or_default();
        }
    }

-    Ok(next_event)
+    if continue_streaming {
+        job_try!(schedule_maybe_send_locations(context, true).await);
+    }
+    job::Status::Finished(Ok(()))
+}
+
+pub(crate) async fn job_maybe_send_locations_ended(
+    context: &Context,
+    job: &mut Job,
+) -> job::Status {
+    // this function is called when location-streaming _might_ have ended for a chat.
+    // the function checks, if location-streaming is really ended;
+    // if so, a device-message is added if not yet done.
+
+    let chat_id = ChatId::new(job.foreign_id);
+
+    let (send_begin, send_until) = job_try!(
+        context
+            .sql
+            .query_row(
+                "SELECT locations_send_begin, locations_send_until  FROM chats  WHERE id=?",
+                paramsv![chat_id],
+                |row| Ok((row.get::<_, i64>(0)?, row.get::<_, i64>(1)?)),
+            )
+            .await
+    );
+
+    let now = time();
+    if !(send_begin != 0 && now <= send_until) {
+        // still streaming -
+        // may happen as several calls to dc_send_locations_to_chat()
+        // do not un-schedule pending DC_MAYBE_SEND_LOC_ENDED jobs
+        if !(send_begin == 0 && send_until == 0) {
+            // not streaming, device-message already sent
+            job_try!(
+                context
+                    .sql
+                    .execute(
+                        "UPDATE chats \
+                             SET locations_send_begin=0, locations_send_until=0 \
+ WHERE id=?",
+                        paramsv![chat_id],
+                    )
+                    .await
+            );
+
+            let stock_str = stock_str::msg_location_disabled(context).await;
+            job_try!(chat::add_info_msg(context, chat_id, stock_str, now).await);
+            context.emit_event(EventType::ChatModified(chat_id));
+        }
+    }
+    job::Status::Finished(Ok(()))
 }

 #[cfg(test)]
@@ -728,7 +759,6 @@ mod tests {
    #![allow(clippy::indexing_slicing)]

    use super::*;
-    use crate::dc_receive_imf::dc_receive_imf;
    use crate::test_utils::TestContext;

    #[async_std::test]
@@ -789,68 +819,4 @@ mod tests {
        assert!(!is_marker(" "));
        assert!(!is_marker("\t"));
    }
-
-    /// Tests that location.kml is hidden.
-    #[async_std::test]
-    async fn receive_location_kml() -> Result<()> {
-        let alice = TestContext::new_alice().await;
-
-        dc_receive_imf(
-            &alice,
-            br#"Subject: Hello
-Message-ID: hello@example.net
-To: Alice <alice@example.org>
-From: Bob <bob@example.net>
-Date: Mon, 20 Dec 2021 00:00:00 +0000
-Chat-Version: 1.0
-Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
-
-Text message."#,
-            false,
-        )
-        .await?;
-        let received_msg = alice.get_last_msg().await;
-        assert_eq!(received_msg.text.unwrap(), "Text message.");
-
-        dc_receive_imf(
-            &alice,
-            br#"Subject: locations
-MIME-Version: 1.0
-To: <alice@example.org>
-From: <bob@example.net>
-Date: Tue, 21 Dec 2021 00:00:00 +0000
-Chat-Version: 1.0
-Message-ID: <foobar@example.net>
-Content-Type: multipart/mixed; boundary="U8BOG8qNXfB0GgLiQ3PKUjlvdIuLRF"
-
-
--U8BOG8qNXfB0GgLiQ3PKUjlvdIuLRF
-Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
-
-
-
--U8BOG8qNXfB0GgLiQ3PKUjlvdIuLRF
-Content-Type: application/vnd.google-earth.kml+xml
-Content-Disposition: attachment; filename="location.kml"
-
-<?xml version="1.0" encoding="UTF-8"?>
-<kml xmlns="http://www.opengis.net/kml/2.2">
-<Document addr="bob@example.net">
-<Placemark><Timestamp><when>2021-11-21T00:00:00Z</when></Timestamp><Point><coordinates accuracy="1.0000000000000000">10.00000000000000,20.00000000000000</coordinates></Point></Placemark>
-</Document>
-</kml>
-
--U8BOG8qNXfB0GgLiQ3PKUjlvdIuLRF--"#,
-            false,
-        )
-        .await?;
-
-        // Received location message is not visible, last message stays the same.
-        let received_msg2 = alice.get_last_msg().await;
-        assert_eq!(received_msg2.id, received_msg.id);
-
-        let locations = get_range(&alice, None, None, 0, 0).await?;
-        assert_eq!(locations.len(), 1);
-        Ok(())
-    }
 }
--- a/src/login_param.rs
+++ b/src/login_param.rs
@@ -139,18 +139,8 @@ pub struct LoginParam {
 }

 impl LoginParam {
-    /// Load entered (candidate) account settings
-    pub async fn load_candidate_params(context: &Context) -> Result<Self> {
-        LoginParam::from_database(context, "").await
-    }
-
-    /// Load configured (working) account settings
-    pub async fn load_configured_params(context: &Context) -> Result<Self> {
-        LoginParam::from_database(context, "configured_").await
-    }
-
    /// Read the login parameters from the database.
-    async fn from_database(context: &Context, prefix: impl AsRef<str>) -> Result<Self> {
+    pub async fn from_database(context: &Context, prefix: impl AsRef<str>) -> Result<Self> {
        let prefix = prefix.as_ref();
        let sql = &context.sql;

@@ -252,18 +242,18 @@ impl LoginParam {
    }

    /// Save this loginparam to the database.
-    pub async fn save_as_configured_params(&self, context: &Context) -> Result<()> {
-        let prefix = "configured_";
+    pub async fn save_to_database(&self, context: &Context, prefix: impl AsRef<str>) -> Result<()> {
+        let prefix = prefix.as_ref();
        let sql = &context.sql;

-        context.set_primary_self_addr(&self.addr).await?;
+        let key = format!("{}addr", prefix);
+        sql.set_raw_config(key, Some(&self.addr)).await?;

        let key = format!("{}mail_server", prefix);
        sql.set_raw_config(key, Some(&self.imap.server)).await?;

        let key = format!("{}mail_port", prefix);
-        sql.set_raw_config_int(key, i32::from(self.imap.port))
-            .await?;
+        sql.set_raw_config_int(key, self.imap.port as i32).await?;

        let key = format!("{}mail_user", prefix);
        sql.set_raw_config(key, Some(&self.imap.user)).await?;
@@ -283,8 +273,7 @@ impl LoginParam {
        sql.set_raw_config(key, Some(&self.smtp.server)).await?;

        let key = format!("{}send_port", prefix);
-        sql.set_raw_config_int(key, i32::from(self.smtp.port))
-            .await?;
+        sql.set_raw_config_int(key, self.smtp.port as i32).await?;

        let key = format!("{}send_user", prefix);
        sql.set_raw_config(key, Some(&self.smtp.user)).await?;
@@ -424,7 +413,7 @@ mod tests {
        let t = TestContext::new().await;

        let param = LoginParam {
-            addr: "alice@example.org".to_string(),
+            addr: "alice@example.com".to_string(),
            imap: ServerLoginParam {
                server: "imap.example.com".to_string(),
                user: "alice".to_string(),
@@ -435,7 +424,7 @@ mod tests {
            },
            smtp: ServerLoginParam {
                server: "smtp.example.com".to_string(),
-                user: "alice@example.org".to_string(),
+                user: "alice@example.com".to_string(),
                password: "bar".to_string(),
                port: 456,
                security: Socket::Ssl,
@@ -447,8 +436,8 @@ mod tests {
            socks5_config: None,
        };

-        param.save_as_configured_params(&t).await?;
-        let loaded = LoginParam::load_configured_params(&t).await?;
+        param.save_to_database(&t, "foobar_").await?;
+        let loaded = LoginParam::from_database(&t, "foobar_").await?;

        assert_eq!(param, loaded);
        Ok(())
--- a/src/message.rs
+++ b/src/message.rs
--- a/src/mimefactory.rs
+++ b/src/mimefactory.rs
@@ -2,14 +2,14 @@

 use std::convert::TryInto;

-use anyhow::{bail, ensure, Context as _, Result};
+use anyhow::{bail, ensure, format_err, Result};
 use chrono::TimeZone;
 use lettre_email::{mime, Address, Header, MimeMultipartType, PartBuilder};

 use crate::blob::BlobObject;
-use crate::chat::Chat;
+use crate::chat::{self, Chat};
 use crate::config::Config;
-use crate::constants::{Chattype, DC_FROM_HANDSHAKE};
+use crate::constants::{Chattype, Viewtype, DC_FROM_HANDSHAKE};
 use crate::contact::Contact;
 use crate::context::{get_version_str, Context};
 use crate::dc_tools::IsNoneOrEmpty;
@@ -22,7 +22,7 @@ use crate::ephemeral::Timer as EphemeralTimer;
 use crate::format_flowed::{format_flowed, format_flowed_quote};
 use crate::html::new_html_mimepart;
 use crate::location;
-use crate::message::{self, Message, MsgId, Viewtype};
+use crate::message::{self, Message, MsgId};
 use crate::mimeparser::SystemMessage;
 use crate::param::Param;
 use crate::peerstate::{Peerstate, PeerstateVerifiedStatus};
@@ -81,7 +81,7 @@ pub struct MimeFactory<'a> {
 /// Result of rendering a message, ready to be submitted to a send job.
 #[derive(Debug, Clone)]
 pub struct RenderedEmail {
-    pub message: String,
+    pub message: Vec<u8>,
    // pub envelope: Envelope,
    pub is_encrypted: bool,
    pub is_gossiped: bool,
@@ -133,7 +133,11 @@ impl<'a> MimeFactory<'a> {
    ) -> Result<MimeFactory<'a>> {
        let chat = Chat::load_from_db(context, msg.chat_id).await?;

-        let from_addr = context.get_primary_self_addr().await?;
+        let from_addr = context
+            .get_config(Config::ConfiguredAddr)
+            .await?
+            .unwrap_or_default();
+
        let config_displayname = context
            .get_config(Config::Displayname)
            .await?
@@ -150,12 +154,6 @@ impl<'a> MimeFactory<'a> {

        if chat.is_self_talk() {
            recipients.push((from_displayname.to_string(), from_addr.to_string()));
-        } else if chat.is_mailing_list() {
-            let list_post = chat
-                .param
-                .get(Param::ListPost)
-                .context("Can't write to mailinglist without ListPost param")?;
-            recipients.push(("".to_string(), list_post.to_string()));
        } else {
            context
                .sql
@@ -203,6 +201,7 @@ impl<'a> MimeFactory<'a> {
            )
            .await?;

+        let default_str = stock_str::status_line(context).await;
        let factory = MimeFactory {
            from_addr,
            from_displayname,
@@ -210,7 +209,7 @@ impl<'a> MimeFactory<'a> {
            selfstatus: context
                .get_config(Config::Selfstatus)
                .await?
-                .unwrap_or_default(),
+                .unwrap_or(default_str),
            recipients,
            timestamp: msg.timestamp_sort,
            loaded: Loaded::Message { chat },
@@ -233,15 +232,19 @@ impl<'a> MimeFactory<'a> {
        ensure!(!msg.chat_id.is_special(), "Invalid chat id");

        let contact = Contact::load_from_db(context, msg.from_id).await?;
-        let from_addr = context.get_primary_self_addr().await?;
+        let from_addr = context
+            .get_config(Config::ConfiguredAddr)
+            .await?
+            .unwrap_or_default();
        let from_displayname = context
            .get_config(Config::Displayname)
            .await?
            .unwrap_or_default();
+        let default_str = stock_str::status_line(context).await;
        let selfstatus = context
            .get_config(Config::Selfstatus)
            .await?
-            .unwrap_or_default();
+            .unwrap_or(default_str);
        let timestamp = dc_create_smeared_timestamp(context).await;

        let res = MimeFactory::<'a> {
@@ -271,7 +274,10 @@ impl<'a> MimeFactory<'a> {
        &self,
        context: &Context,
    ) -> Result<Vec<(Option<Peerstate>, &str)>> {
-        let self_addr = context.get_primary_self_addr().await?;
+        let self_addr = context
+            .get_config(Config::ConfiguredAddr)
+            .await?
+            .ok_or_else(|| format_err!("Not configured"))?;

        let mut res = Vec::new();
        for (_, addr) in self
@@ -452,121 +458,49 @@ impl<'a> MimeFactory<'a> {
            self.from_addr.clone(),
        );

-        let undisclosed_recipients = match &self.loaded {
-            Loaded::Message { chat } => chat.typ == Chattype::Broadcast,
-            Loaded::Mdn { .. } => false,
-        };
-
        let mut to = Vec::new();
-        if undisclosed_recipients {
-            to.push(Address::new_group(
-                "hidden-recipients".to_string(),
-                Vec::new(),
-            ));
-        } else {
-            let email_to_remove =
-                if self.msg.param.get_cmd() == SystemMessage::MemberRemovedFromGroup {
-                    self.msg.param.get(Param::Arg)
-                } else {
-                    None
-                };
-
-            for (name, addr) in self.recipients.iter() {
-                if let Some(email_to_remove) = email_to_remove {
-                    if email_to_remove == addr {
-                        continue;
-                    }
-                }
-
-                if name.is_empty() {
-                    to.push(Address::new_mailbox(addr.clone()));
-                } else {
-                    to.push(Address::new_mailbox_with_name(
-                        name.to_string(),
-                        addr.clone(),
-                    ));
-                }
-            }
-
-            if to.is_empty() {
-                to.push(from.clone());
+        for (name, addr) in self.recipients.iter() {
+            if name.is_empty() {
+                to.push(Address::new_mailbox(addr.clone()));
+            } else {
+                to.push(Address::new_mailbox_with_name(
+                    name.to_string(),
+                    addr.clone(),
+                ));
            }
        }

-        // Start with Internet Message Format headers in the order of the standard example
-        // <https://datatracker.ietf.org/doc/html/rfc5322#appendix-A.1.1>.
-        headers
-            .unprotected
-            .push(Header::new_with_value("From".into(), vec![from]).unwrap());
-        if let Some(sender_displayname) = &self.sender_displayname {
-            let sender =
-                Address::new_mailbox_with_name(sender_displayname.clone(), self.from_addr.clone());
-            headers
-                .unprotected
-                .push(Header::new_with_value("Sender".into(), vec![sender]).unwrap());
-        }
-        headers
-            .unprotected
-            .push(Header::new_with_value("To".into(), to).unwrap());
-
-        let subject_str = self.subject_str(context).await?;
-        let encoded_subject = if subject_str
-            .chars()
-            .all(|c| c.is_ascii_alphanumeric() || c == ' ')
-        // We do not use needs_encoding() here because needs_encoding() returns true if the string contains a space
-        // but we do not want to encode all subjects just because they contain a space.
-        {
-            subject_str.clone()
-        } else {
-            encode_words(&subject_str)
-        };
-        headers
-            .protected
-            .push(Header::new("Subject".into(), encoded_subject));
-
-        let date = chrono::Utc
-            .from_local_datetime(&chrono::NaiveDateTime::from_timestamp(self.timestamp, 0))
-            .unwrap()
-            .to_rfc2822();
-        headers.unprotected.push(Header::new("Date".into(), date));
-
-        let rfc724_mid = match self.loaded {
-            Loaded::Message { .. } => self.msg.rfc724_mid.clone(),
-            Loaded::Mdn { .. } => dc_create_outgoing_rfc724_mid(None, &self.from_addr),
-        };
-        let rfc724_mid_headervalue = render_rfc724_mid(&rfc724_mid);
-
-        // Amazon's SMTP servers change the `Message-ID`, just as Outlook's SMTP servers do.
-        // Outlook's servers add an `X-Microsoft-Original-Message-ID` header with the original `Message-ID`,
-        // and when downloading messages we look for this header in order to correctly identify
-        // messages.
-        // Amazon's servers do not add such a header, so we just add it ourselves.
-        if let Some(server) = context.get_config(Config::ConfiguredSendServer).await? {
-            if server.ends_with(".amazonaws.com") {
-                headers.unprotected.push(Header::new(
-                    "X-Microsoft-Original-Message-ID".into(),
-                    rfc724_mid_headervalue.clone(),
-                ))
-            }
+        if to.is_empty() {
+            to.push(from.clone());
        }

        headers
            .unprotected
-            .push(Header::new("Message-ID".into(), rfc724_mid_headervalue));
+            .push(Header::new("MIME-Version".into(), "1.0".into()));

-        // Reply headers as in <https://datatracker.ietf.org/doc/html/rfc5322#appendix-A.2>.
-        if !self.in_reply_to.is_empty() {
-            headers
-                .unprotected
-                .push(Header::new("In-Reply-To".into(), self.in_reply_to.clone()));
-        }
        if !self.references.is_empty() {
            headers
                .unprotected
                .push(Header::new("References".into(), self.references.clone()));
        }

-        // Automatic Response headers <https://www.rfc-editor.org/rfc/rfc3834>
+        if !self.in_reply_to.is_empty() {
+            headers
+                .unprotected
+                .push(Header::new("In-Reply-To".into(), self.in_reply_to.clone()));
+        }
+
+        let date = chrono::Utc
+            .from_local_datetime(&chrono::NaiveDateTime::from_timestamp(self.timestamp, 0))
+            .unwrap()
+            .to_rfc2822();
+
+        headers.unprotected.push(Header::new("Date".into(), date));
+
+        headers
+            .unprotected
+            .push(Header::new("Chat-Version".to_string(), "1.0".to_string()));
+
        if let Loaded::Mdn { .. } = self.loaded {
            headers.unprotected.push(Header::new(
                "Auto-Submitted".to_string(),
@@ -579,11 +513,6 @@ impl<'a> MimeFactory<'a> {
            ));
        }

-        // Non-standard headers.
-        headers
-            .unprotected
-            .push(Header::new("Chat-Version".to_string(), "1.0".to_string()));
-
        if self.req_mdn {
            // we use "Chat-Disposition-Notification-To"
            // because replies to "Disposition-Notification-To" are weird in many cases
@@ -598,9 +527,21 @@ impl<'a> MimeFactory<'a> {
        let grpimage = self.grpimage();
        let force_plaintext = self.should_force_plaintext();
        let skip_autocrypt = self.should_skip_autocrypt();
+        let subject_str = self.subject_str(context).await?;
        let e2ee_guaranteed = self.is_e2ee_guaranteed();
        let encrypt_helper = EncryptHelper::new(context).await?;

+        let encoded_subject = if subject_str
+            .chars()
+            .all(|c| c.is_ascii_alphanumeric() || c == ' ')
+        // We do not use needs_encoding() here because needs_encoding() returns true if the string contains a space
+        // but we do not want to encode all subjects just because they contain a space.
+        {
+            subject_str.clone()
+        } else {
+            encode_words(&subject_str)
+        };
+
        if !skip_autocrypt {
            // unless determined otherwise we add the Autocrypt header
            let aheader = encrypt_helper.get_aheader().to_string();
@@ -609,6 +550,15 @@ impl<'a> MimeFactory<'a> {
                .push(Header::new("Autocrypt".into(), aheader));
        }

+        headers
+            .protected
+            .push(Header::new("Subject".into(), encoded_subject));
+
+        let rfc724_mid = match self.loaded {
+            Loaded::Message { .. } => self.msg.rfc724_mid.clone(),
+            Loaded::Mdn { .. } => dc_create_outgoing_rfc724_mid(None, &self.from_addr),
+        };
+
        let ephemeral_timer = self.msg.chat_id.get_ephemeral_timer(context).await?;
        if let EphemeralTimer::Enabled { duration } = ephemeral_timer {
            headers.protected.push(Header::new(
@@ -617,11 +567,36 @@ impl<'a> MimeFactory<'a> {
            ));
        }

-        // MIME header <https://datatracker.ietf.org/doc/html/rfc2045>.
-        // Content-Type
+        headers.unprotected.push(Header::new(
+            "Message-ID".into(),
+            render_rfc724_mid(&rfc724_mid),
+        ));
+
+        let undisclosed_recipients = match &self.loaded {
+            Loaded::Message { chat } => chat.typ == Chattype::Broadcast,
+            Loaded::Mdn { .. } => false,
+        };
+
+        if undisclosed_recipients {
+            headers
+                .unprotected
+                .push(Header::new("To".into(), "hidden-recipients: ;".to_string()));
+        } else {
+            headers
+                .unprotected
+                .push(Header::new_with_value("To".into(), to).unwrap());
+        }
+
        headers
            .unprotected
-            .push(Header::new("MIME-Version".into(), "1.0".into()));
+            .push(Header::new_with_value("From".into(), vec![from]).unwrap());
+        if let Some(sender_displayname) = &self.sender_displayname {
+            let sender =
+                Address::new_mailbox_with_name(sender_displayname.clone(), self.from_addr.clone());
+            headers
+                .unprotected
+                .push(Header::new_with_value("Sender".into(), vec![sender]).unwrap());
+        }

        let mut is_gossiped = false;

@@ -648,11 +623,6 @@ impl<'a> MimeFactory<'a> {
                    "Content-Type".to_string(),
                    "multipart/report; report-type=multi-device-sync".to_string(),
                ))
-            } else if self.msg.param.get_cmd() == SystemMessage::WebxdcStatusUpdate {
-                PartBuilder::new().header((
-                    "Content-Type".to_string(),
-                    "multipart/report; report-type=status-update".to_string(),
-                ))
            } else {
                PartBuilder::new().message_type(MimeMultipartType::Mixed)
            };
@@ -777,7 +747,7 @@ impl<'a> MimeFactory<'a> {
        } = self;

        Ok(RenderedEmail {
-            message: outer_message.build().as_string(),
+            message: outer_message.build().as_string().into_bytes(),
            // envelope: Envelope::new,
            is_encrypted,
            is_gossiped,
@@ -850,12 +820,9 @@ impl<'a> MimeFactory<'a> {
        }

        if chat.typ == Chattype::Group {
-            // Send group ID unless it is an ad hoc group that has no ID.
-            if !chat.grpid.is_empty() {
-                headers
-                    .protected
-                    .push(Header::new("Chat-Group-ID".into(), chat.grpid.clone()));
-            }
+            headers
+                .protected
+                .push(Header::new("Chat-Group-ID".into(), chat.grpid.clone()));

            let encoded = encode_words(&chat.name);
            headers
@@ -930,9 +897,7 @@ impl<'a> MimeFactory<'a> {
                    "ephemeral-timer-changed".to_string(),
                ));
            }
-            SystemMessage::LocationOnly
-            | SystemMessage::MultiDeviceSync
-            | SystemMessage::WebxdcStatusUpdate => {
+            SystemMessage::LocationOnly | SystemMessage::MultiDeviceSync => {
                // This should prevent automatic replies,
                // such as non-delivery reports.
                //
@@ -1133,7 +1098,7 @@ impl<'a> MimeFactory<'a> {
        }

        // add attachment part
-        if self.msg.viewtype.has_file() {
+        if chat::msgtype_has_file(self.msg.viewtype) {
            if !is_file_size_okay(context, self.msg).await? {
                bail!(
                    "Message exceeds the recommended {} MB.",
@@ -1169,16 +1134,6 @@ impl<'a> MimeFactory<'a> {
            let ids = self.msg.param.get(Param::Arg2).unwrap_or_default();
            parts.push(context.build_sync_part(json.to_string()).await);
            self.sync_ids_to_delete = Some(ids.to_string());
-        } else if command == SystemMessage::WebxdcStatusUpdate {
-            let json = self.msg.param.get(Param::Arg).unwrap_or_default();
-            parts.push(context.build_status_update_part(json).await);
-        } else if self.msg.viewtype == Viewtype::Webxdc {
-            if let Some(json) = context
-                .render_webxdc_status_update_object(self.msg.id, None)
-                .await?
-            {
-                parts.push(context.build_status_update_part(&json).await);
-            }
        }

        if self.attach_selfavatar {
@@ -1310,7 +1265,7 @@ async fn build_body_file(
        .param
        .get_blob(Param::File, context, true)
        .await?
-        .context("msg has no filename")?;
+        .ok_or_else(|| format_err!("msg has no filename"))?;
    let suffix = blob.suffix().unwrap_or("dat");

    // Get file name to use for sending.  For privacy purposes, we do
@@ -1338,7 +1293,8 @@ async fn build_body_file(
            "video_{}.{}",
            chrono::Utc
                .timestamp(msg.timestamp_sort, 0)
-                .format("%Y-%m-%d_%H-%M-%S"),
+                .format("%Y-%m-%d_%H-%M-%S")
+                .to_string(),
            &suffix
        ),
        _ => blob.as_file_name().to_string(),
@@ -1445,22 +1401,18 @@ fn maybe_encode_words(words: &str) -> String {

 #[cfg(test)]
 mod tests {
-    use async_std::fs::File;
+    use super::*;
    use async_std::prelude::*;
-    use mailparse::{addrparse_header, MailHeaderMap};

    use crate::chat::ChatId;
-    use crate::chat::{
-        self, add_contact_to_chat, create_group_chat, remove_contact_from_chat, send_text_msg,
-        ProtectionStatus,
-    };
    use crate::chatlist::Chatlist;
    use crate::contact::Origin;
    use crate::dc_receive_imf::dc_receive_imf;
    use crate::mimeparser::MimeMessage;
    use crate::test_utils::{get_chat_msg, TestContext};

-    use super::*;
+    use async_std::fs::File;
+
    #[test]
    fn test_render_email_address() {
        let display_name = "ä space";
@@ -1557,7 +1509,7 @@ mod tests {
            msg_to_subject_str(
                b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                From: Bob <bob@example.com>\n\
-                To: alice@example.org\n\
+                To: alice@example.com\n\
                Subject: Antw: Chat: hello\n\
                Message-ID: <2222@example.com>\n\
                Date: Sun, 22 Mar 2020 22:37:56 +0000\n\
@@ -1572,7 +1524,7 @@ mod tests {
            msg_to_subject_str(
                b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                From: Bob <bob@example.com>\n\
-                To: alice@example.org\n\
+                To: alice@example.com\n\
                Subject: Infos: 42\n\
                Message-ID: <2222@example.com>\n\
                Date: Sun, 22 Mar 2020 22:37:56 +0000\n\
@@ -1591,7 +1543,7 @@ mod tests {
            msg_to_subject_str(
                b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                From: bob@example.com\n\
-                To: alice@example.org\n\
+                To: alice@example.com\n\
                Subject: Chat: hello\n\
                Chat-Version: 1.0\n\
                Message-ID: <2223@example.com>\n\
@@ -1609,7 +1561,7 @@ mod tests {
        // 3. Send the first message to a new contact
        let t = TestContext::new_alice().await;

-        assert_eq!(first_subject_str(t).await, "Message from alice@example.org");
+        assert_eq!(first_subject_str(t).await, "Message from alice@example.com");

        let t = TestContext::new_alice().await;
        t.set_config(Config::Displayname, Some("Alice"))
@@ -1624,7 +1576,7 @@ mod tests {
        msg_to_subject_str(
            "Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
            From: bob@example.com\n\
-            To: alice@example.org\n\
+            To: alice@example.com\n\
            Subject: äääää\n\
            Chat-Version: 1.0\n\
            Message-ID: <2893@example.com>\n\
@@ -1638,7 +1590,7 @@ mod tests {
        msg_to_subject_str(
            "Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
            From: bob@example.com\n\
-            To: alice@example.org\n\
+            To: alice@example.com\n\
            Subject: aäääää\n\
            Chat-Version: 1.0\n\
            Message-ID: <2893@example.com>\n\
@@ -1657,7 +1609,7 @@ mod tests {
        dc_receive_imf(
            &t,
            b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
-            From: alice@example.org\n\
+            From: alice@example.com\n\
            To: bob@example.com\n\
            Subject: Hello, Bob\n\
            Chat-Version: 1.0\n\
@@ -1665,6 +1617,8 @@ mod tests {
            Date: Sun, 22 Mar 2020 22:37:56 +0000\n\
            \n\
            hello\n",
+            "INBOX",
+            1,
            false,
        )
        .await
@@ -1672,7 +1626,7 @@ mod tests {
        let new_msg = incoming_msg_to_reply_msg(
            b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                 From: bob@example.com\n\
-                 To: alice@example.org\n\
+                 To: alice@example.com\n\
                 Subject: message opened\n\
                 Date: Sun, 22 Mar 2020 23:37:57 +0000\n\
                 Chat-Version: 1.0\n\
@@ -1710,7 +1664,7 @@ mod tests {
            let mut new_msg = Message::new(Viewtype::Text);
            new_msg.set_text(Some("Hi".to_string()));
            if let Some(q) = quote {
-                new_msg.set_quote(t, Some(q)).await?;
+                new_msg.set_quote(t, q).await?;
            }
            let sent = t.send_msg(group_id, &mut new_msg).await;
            get_subject(t, sent).await
@@ -1747,7 +1701,7 @@ mod tests {
            format!(
                "Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                From: bob@example.com\n\
-                To: alice@example.org\n\
+                To: alice@example.com\n\
                Subject: Different subject\n\
                In-Reply-To: {}\n\
                Message-ID: <2893@example.com>\n\
@@ -1757,6 +1711,8 @@ mod tests {
                t.get_last_msg().await.rfc724_mid
            )
            .as_bytes(),
+            "INBOX",
+            5,
            false,
        )
        .await?;
@@ -1800,7 +1756,7 @@ mod tests {
        mf.subject_str(&t).await.unwrap()
    }

-    // In `imf_raw`, From has to be bob@example.com, To has to be alice@example.org
+    // In `imf_raw`, From has to be bob@example.com, To has to be alice@example.com
    async fn msg_to_subject_str(imf_raw: &[u8]) -> String {
        let subject_str = msg_to_subject_str_inner(imf_raw, false, false, false).await;

@@ -1861,12 +1817,14 @@ mod tests {
                &t,
                b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                    From: Bob <bob@example.com>\n\
-                    To: alice@example.org\n\
+                    To: alice@example.com\n\
                    Subject: Some other, completely unrelated subject\n\
                    Message-ID: <3cl4@example.com>\n\
                    Date: Sun, 22 Mar 2020 22:37:56 +0000\n\
                    \n\
                    Some other, completely unrelated content\n",
+                "INBOX",
+                2,
                false,
            )
            .await
@@ -1877,7 +1835,7 @@ mod tests {
        }

        if reply {
-            new_msg.set_quote(&t, Some(&incoming_msg)).await.unwrap();
+            new_msg.set_quote(&t, &incoming_msg).await.unwrap();
        }

        let mf = MimeFactory::from_msg(&t, &new_msg, false).await.unwrap();
@@ -1891,11 +1849,13 @@ mod tests {
            .await
            .unwrap();

-        dc_receive_imf(context, imf_raw, false).await.unwrap();
+        dc_receive_imf(context, imf_raw, "INBOX", 1, false)
+            .await
+            .unwrap();

        let chats = Chatlist::try_load(context, 0, None, None).await.unwrap();

-        let chat_id = chats.get_chat_id(0).unwrap();
+        let chat_id = chats.get_chat_id(0);
        chat_id.accept(context).await.unwrap();

        let mut new_msg = Message::new(Viewtype::Text);
@@ -1917,7 +1877,7 @@ mod tests {
        let msg = incoming_msg_to_reply_msg(
            b"Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
                From: Charlie <charlie@example.com>\n\
-                To: alice@example.org\n\
+                To: alice@example.com\n\
                Subject: Chat: hello\n\
                Chat-Version: 1.0\n\
                Message-ID: <2223@example.com>\n\
@@ -1935,7 +1895,7 @@ mod tests {

        let rendered_msg = mimefactory.render(context).await.unwrap();

-        let mail = mailparse::parse_mail(rendered_msg.message.as_bytes()).unwrap();
+        let mail = mailparse::parse_mail(&rendered_msg.message).unwrap();
        assert_eq!(
            mail.headers
                .iter()
@@ -1945,7 +1905,7 @@ mod tests {
            "1.0"
        );

-        let _mime_msg = MimeMessage::from_bytes(context, rendered_msg.message.as_bytes())
+        let _mime_msg = MimeMessage::from_bytes(context, &rendered_msg.message)
            .await
            .unwrap();
    }
@@ -2019,9 +1979,8 @@ mod tests {
        let mut msg = Message::new(Viewtype::Text);
        msg.set_text(Some("this is the text!".to_string()));

-        let sent_msg = t.send_msg(chat.id, &mut msg).await;
-        let mut payload = sent_msg.payload().splitn(3, "\r\n\r\n");
-
+        let payload = t.send_msg(chat.id, &mut msg).await.payload();
+        let mut payload = payload.splitn(3, "\r\n\r\n");
        let outer = payload.next().unwrap();
        let inner = payload.next().unwrap();
        let body = payload.next().unwrap();
@@ -2039,8 +1998,8 @@ mod tests {

        // if another message is sent, that one must not contain the avatar
        // and no artificial multipart/mixed nesting
-        let sent_msg = t.send_msg(chat.id, &mut msg).await;
-        let mut payload = sent_msg.payload().splitn(2, "\r\n\r\n");
+        let payload = t.send_msg(chat.id, &mut msg).await.payload();
+        let mut payload = payload.splitn(2, "\r\n\r\n");
        let outer = payload.next().unwrap();
        let body = payload.next().unwrap();

@@ -2057,58 +2016,4 @@ mod tests {

        Ok(())
    }
-
-    /// Test that removed member address does not go into the `To:` field.
-    #[async_std::test]
-    async fn test_remove_member_bcc() -> Result<()> {
-        // Alice creates a group with Bob and Claire and then removes Bob.
-        let alice = TestContext::new_alice().await;
-
-        let bob_id = Contact::create(&alice, "Bob", "bob@example.net").await?;
-        let claire_id = Contact::create(&alice, "Claire", "claire@foo.de").await?;
-
-        let alice_chat_id = create_group_chat(&alice, ProtectionStatus::Unprotected, "foo").await?;
-        add_contact_to_chat(&alice, alice_chat_id, bob_id).await?;
-        add_contact_to_chat(&alice, alice_chat_id, claire_id).await?;
-        send_text_msg(&alice, alice_chat_id, "Creating a group".to_string()).await?;
-
-        remove_contact_from_chat(&alice, alice_chat_id, claire_id).await?;
-        let remove = alice.pop_sent_msg().await;
-        let remove_payload = remove.payload();
-        let parsed = mailparse::parse_mail(remove_payload.as_bytes())?;
-        let to = parsed
-            .headers
-            .get_first_header("To")
-            .context("no To: header parsed")?;
-        let to = addrparse_header(to)?;
-        let mailbox = to
-            .extract_single_info()
-            .context("to: field does not contain exactly one address")?;
-        assert_eq!(mailbox.addr, "bob@example.net");
-
-        Ok(())
-    }
-
-    /// Tests that standard IMF header "From:" comes before non-standard "Autocrypt:" header.
-    #[async_std::test]
-    async fn test_from_before_autocrypt() -> Result<()> {
-        // create chat with bob
-        let t = TestContext::new_alice().await;
-        let chat = t.create_chat_with_contact("bob", "bob@example.org").await;
-
-        // send message to bob: that should get multipart/mixed because of the avatar moved to inner header;
-        // make sure, `Subject:` stays in the outer header (imf header)
-        let mut msg = Message::new(Viewtype::Text);
-        msg.set_text(Some("this is the text!".to_string()));
-
-        let sent_msg = t.send_msg(chat.id, &mut msg).await;
-        let payload = sent_msg.payload();
-
-        assert_eq!(payload.match_indices("Autocrypt:").count(), 1);
-        assert_eq!(payload.match_indices("From:").count(), 1);
-
-        assert!(payload.match_indices("From:").next() < payload.match_indices("Autocrypt:").next());
-
-        Ok(())
-    }
 }
--- a/src/mimeparser.rs
+++ b/src/mimeparser.rs
@@ -2,7 +2,6 @@

 use std::collections::{HashMap, HashSet};
 use std::future::Future;
-use std::io::Cursor;
 use std::pin::Pin;

 use anyhow::{bail, Result};
@@ -13,10 +12,10 @@ use once_cell::sync::Lazy;

 use crate::aheader::Aheader;
 use crate::blob::BlobObject;
-use crate::constants::{DC_DESIRED_TEXT_LEN, DC_ELLIPSIS};
-use crate::contact::{addr_normalize, ContactId};
+use crate::constants::{Viewtype, DC_DESIRED_TEXT_LEN, DC_ELLIPSIS};
+use crate::contact::addr_normalize;
 use crate::context::Context;
-use crate::dc_tools::{dc_get_filemeta, dc_truncate, parse_receive_headers};
+use crate::dc_tools::{dc_get_filemeta, dc_truncate};
 use crate::dehtml::dehtml;
 use crate::e2ee;
 use crate::events::EventType;
@@ -24,7 +23,7 @@ use crate::format_flowed::unformat_flowed;
 use crate::headerdef::{HeaderDef, HeaderDefMap};
 use crate::key::Fingerprint;
 use crate::location;
-use crate::message::{self, Viewtype};
+use crate::message;
 use crate::param::{Param, Params};
 use crate::peerstate::Peerstate;
 use crate::simplify::simplify;
@@ -48,7 +47,6 @@ pub struct MimeMessage {
    /// Addresses are normalized and lowercased:
    pub recipients: Vec<SingleInfo>,
    pub from: Vec<SingleInfo>,
-    pub list_post: Option<String>,
    pub chat_disposition_notification_to: Option<SingleInfo>,
    pub decrypting_failed: bool,

@@ -67,7 +65,6 @@ pub struct MimeMessage {
    pub location_kml: Option<location::Kml>,
    pub message_kml: Option<location::Kml>,
    pub(crate) sync_items: Option<SyncItems>,
-    pub(crate) webxdc_status_update: Option<String>,
    pub(crate) user_avatar: Option<AvatarAction>,
    pub(crate) group_avatar: Option<AvatarAction>,
    pub(crate) mdn_reports: Vec<Report>,
@@ -85,8 +82,6 @@ pub struct MimeMessage {
    /// This is non-empty only if the message was actually encrypted.  It is used
    /// for e.g. late-parsing HTML.
    pub decoded_data: Vec<u8>,
-
-    pub(crate) hop_info: String,
 }

 #[derive(Debug, PartialEq)]
@@ -137,10 +132,6 @@ pub enum SystemMessage {
    /// Self-sent-message that contains only json used for multi-device-sync;
    /// if possible, we attach that to other messages as for locations.
    MultiDeviceSync = 20,
-
-    // Sync message that contains a json payload
-    // sent to the other webxdc instances
-    WebxdcStatusUpdate = 30,
 }

 impl Default for SystemMessage {
@@ -172,12 +163,10 @@ impl MimeMessage {
            .get_header_value(HeaderDef::Date)
            .and_then(|v| mailparse::dateparse(&v).ok())
            .unwrap_or_default();
-        let hop_info = parse_receive_headers(&mail.get_headers());

        let mut headers = Default::default();
        let mut recipients = Default::default();
        let mut from = Default::default();
-        let mut list_post = Default::default();
        let mut chat_disposition_notification_to = None;

        // Parse IMF headers.
@@ -186,7 +175,6 @@ impl MimeMessage {
            &mut headers,
            &mut recipients,
            &mut from,
-            &mut list_post,
            &mut chat_disposition_notification_to,
            &mail.headers,
        );
@@ -260,7 +248,6 @@ impl MimeMessage {
                            &mut headers,
                            &mut recipients,
                            &mut throwaway_from,
-                            &mut list_post,
                            &mut chat_disposition_notification_to,
                            &decrypted_mail.headers,
                        );
@@ -288,7 +275,6 @@ impl MimeMessage {
            parts: Vec::new(),
            header: headers,
            recipients,
-            list_post,
            from,
            chat_disposition_notification_to,
            decrypting_failed: false,
@@ -302,14 +288,12 @@ impl MimeMessage {
            location_kml: None,
            message_kml: None,
            sync_items: None,
-            webxdc_status_update: None,
            user_avatar: None,
            group_avatar: None,
            failure_report: None,
            footer: None,
            is_mime_modified: false,
            decoded_data: Vec::new(),
-            hop_info,
        };

        match partial {
@@ -369,16 +353,6 @@ impl MimeMessage {
            } else if value == "protection-disabled" {
                self.is_system_message = SystemMessage::ChatProtectionDisabled;
            }
-        } else if self.get_header(HeaderDef::ChatGroupMemberRemoved).is_some() {
-            self.is_system_message = SystemMessage::MemberRemovedFromGroup;
-        } else if self.get_header(HeaderDef::ChatGroupMemberAdded).is_some() {
-            self.is_system_message = SystemMessage::MemberAddedToGroup;
-        } else if self.get_header(HeaderDef::ChatGroupNameChanged).is_some() {
-            self.is_system_message = SystemMessage::GroupNameChanged;
-        } else if let Some(value) = self.get_header(HeaderDef::ChatContent) {
-            if value == "group-avatar-changed" {
-                self.is_system_message = SystemMessage::GroupImageChanged;
-            }
        }
    }

@@ -414,18 +388,16 @@ impl MimeMessage {
    #[allow(clippy::indexing_slicing)]
    fn squash_attachment_parts(&mut self) {
        if let [textpart, filepart] = &self.parts[..] {
-            let need_drop = textpart.typ == Viewtype::Text
-                && match filepart.typ {
-                    Viewtype::Image
-                    | Viewtype::Gif
-                    | Viewtype::Sticker
-                    | Viewtype::Audio
-                    | Viewtype::Voice
-                    | Viewtype::Video
-                    | Viewtype::File
-                    | Viewtype::Webxdc => true,
-                    Viewtype::Unknown | Viewtype::Text | Viewtype::VideochatInvitation => false,
-                };
+            let need_drop = {
+                textpart.typ == Viewtype::Text
+                    && (filepart.typ == Viewtype::Image
+                        || filepart.typ == Viewtype::Gif
+                        || filepart.typ == Viewtype::Sticker
+                        || filepart.typ == Viewtype::Audio
+                        || filepart.typ == Viewtype::Voice
+                        || filepart.typ == Viewtype::Video
+                        || filepart.typ == Viewtype::File)
+            };

            if need_drop {
                let mut filepart = self.parts.swap_remove(1);
@@ -557,7 +529,7 @@ impl MimeMessage {
            };

            if let Some(ref subject) = self.get_subject() {
-                if !self.has_chat_version() && self.webxdc_status_update.is_none() {
+                if !self.has_chat_version() {
                    part.msg = subject.to_string();
                }
            }
@@ -856,12 +828,6 @@ impl MimeMessage {
                                    .await?;
                            }
                        }
-                        Some("status-update") => {
-                            if let Some(second) = mail.subparts.get(1) {
-                                self.add_single_part_if_known(context, second, is_related)
-                                    .await?;
-                            }
-                        }
                        Some(_) => {
                            if let Some(first) = mail.subparts.get(0) {
                                any_part_added = self
@@ -1031,14 +997,8 @@ impl MimeMessage {
        if decoded_data.is_empty() {
            return;
        }
-        let reader = Cursor::new(decoded_data);
-        let msg_type = if context
-            .is_webxdc_file(filename, reader)
-            .await
-            .unwrap_or(false)
-        {
-            Viewtype::Webxdc
-        } else if filename.ends_with(".kml") {
+        // treat location/message kml file attachments specially
+        if filename.ends_with(".kml") {
            // XXX what if somebody sends eg an "location-highlights.kml"
            // attachment unrelated to location streaming?
            if filename.starts_with("location") || filename.starts_with("message") {
@@ -1054,7 +1014,6 @@ impl MimeMessage {
                }
                return;
            }
-            msg_type
        } else if filename == "multi-device-sync.json" {
            let serialized = String::from_utf8_lossy(decoded_data)
                .parse()
@@ -1067,15 +1026,7 @@ impl MimeMessage {
                })
                .ok();
            return;
-        } else if filename == "status-update.json" {
-            let serialized = String::from_utf8_lossy(decoded_data)
-                .parse()
-                .unwrap_or_default();
-            self.webxdc_status_update = Some(serialized);
-            return;
-        } else {
-            msg_type
-        };
+        }

        /* we have a regular file attachment,
        write decoded data to new blob object */
@@ -1141,16 +1092,16 @@ impl MimeMessage {
        }
    }

-    pub fn repl_msg_by_error(&mut self, error_msg: &str) {
+    pub fn repl_msg_by_error(&mut self, error_msg: impl AsRef<str>) {
        self.is_system_message = SystemMessage::Unknown;
        if let Some(part) = self.parts.first_mut() {
            part.typ = Viewtype::Text;
-            part.msg = format!("[{}]", error_msg);
+            part.msg = format!("[{}]", error_msg.as_ref());
            self.parts.truncate(1);
        }
    }

-    pub(crate) fn get_rfc724_mid(&self) -> Option<String> {
+    pub fn get_rfc724_mid(&self) -> Option<String> {
        self.get_header(HeaderDef::XMicrosoftOriginalMessageId)
            .or_else(|| self.get_header(HeaderDef::MessageId))
            .and_then(|msgid| parse_message_id(msgid).ok())
@@ -1161,7 +1112,6 @@ impl MimeMessage {
        headers: &mut HashMap<String, String>,
        recipients: &mut Vec<SingleInfo>,
        from: &mut Vec<SingleInfo>,
-        list_post: &mut Option<String>,
        chat_disposition_notification_to: &mut Option<SingleInfo>,
        fields: &[mailparse::MailHeader<'_>],
    ) {
@@ -1192,10 +1142,6 @@ impl MimeMessage {
        if !from_new.is_empty() {
            *from = from_new;
        }
-        let list_post_new = get_list_post(fields);
-        if list_post_new.is_some() {
-            *list_post = list_post_new;
-        }
    }

    fn process_report(
@@ -1213,24 +1159,23 @@ impl MimeMessage {

        // must be present
        if let Some(_disposition) = report_fields.get_header_value(HeaderDef::Disposition) {
-            let original_message_id = report_fields
+            if let Some(original_message_id) = report_fields
                .get_header_value(HeaderDef::OriginalMessageId)
-                // MS Exchange doesn't add an Original-Message-Id header. Instead, they put
-                // the original message id into the In-Reply-To header:
-                .or_else(|| report.headers.get_header_value(HeaderDef::InReplyTo))
-                .and_then(|v| parse_message_id(&v).ok());
-            let additional_message_ids = report_fields
-                .get_header_value(HeaderDef::AdditionalMessageIds)
-                .map_or_else(Vec::new, |v| {
-                    v.split(' ')
-                        .filter_map(|s| parse_message_id(s).ok())
-                        .collect()
-                });
+                .and_then(|v| parse_message_id(&v).ok())
+            {
+                let additional_message_ids = report_fields
+                    .get_header_value(HeaderDef::AdditionalMessageIds)
+                    .map_or_else(Vec::new, |v| {
+                        v.split(' ')
+                            .filter_map(|s| parse_message_id(s).ok())
+                            .collect()
+                    });

-            return Ok(Some(Report {
-                original_message_id,
-                additional_message_ids,
-            }));
+                return Ok(Some(Report {
+                    original_message_id,
+                    additional_message_ids,
+                }));
+            }
        }
        warn!(
            context,
@@ -1381,15 +1326,13 @@ impl MimeMessage {
    pub async fn handle_reports(
        &self,
        context: &Context,
-        from_id: ContactId,
+        from_id: u32,
        sent_timestamp: i64,
        parts: &[Part],
    ) {
        for report in &self.mdn_reports {
-            for original_message_id in report
-                .original_message_id
-                .iter()
-                .chain(&report.additional_message_ids)
+            for original_message_id in
+                std::iter::once(&report.original_message_id).chain(&report.additional_message_ids)
            {
                match message::handle_mdn(context, from_id, original_message_id, sent_timestamp)
                    .await
@@ -1494,10 +1437,7 @@ async fn update_gossip_peerstates(
 #[derive(Debug)]
 pub(crate) struct Report {
    /// Original-Message-ID header
-    ///
-    /// It MUST be present if the original message has a Message-ID according to RFC 8098.
-    /// In case we can't find it (shouldn't happen), this is None.
-    original_message_id: Option<String>,
+    original_message_id: String,
    /// Additional-Message-IDs
    additional_message_ids: Vec<String>,
 }
@@ -1687,14 +1627,6 @@ pub(crate) fn get_from(headers: &[MailHeader]) -> Vec<SingleInfo> {
    get_all_addresses_from_header(headers, |header_key| header_key == "from")
 }

-/// Returned addresses are normalized and lowercased.
-pub(crate) fn get_list_post(headers: &[MailHeader]) -> Option<String> {
-    get_all_addresses_from_header(headers, |header_key| header_key == "list-post")
-        .into_iter()
-        .next()
-        .map(|s| s.addr)
-}
-
 fn get_all_addresses_from_header<F>(headers: &[MailHeader], pred: F) -> Vec<SingleInfo>
 where
    F: Fn(String) -> bool,
@@ -2414,7 +2346,7 @@ Additional-Message-IDs: <foo@example.com> <foo@example.net>\n\
        assert_eq!(message.mdn_reports.len(), 1);
        assert_eq!(
            message.mdn_reports[0].original_message_id,
-            Some("foo@example.org".to_string())
+            "foo@example.org"
        );
        assert_eq!(
            &message.mdn_reports[0].additional_message_ids,
@@ -2915,6 +2847,8 @@ On 2020-10-25, Bob wrote:
        dc_receive_imf(
            &t.ctx,
            include_bytes!("../test-data/message/subj_with_multimedia_msg.eml"),
+            "INBOX",
+            1,
            false,
        )
        .await
@@ -3063,7 +2997,7 @@ Subject: ...

 Some quote.
 "###;
-        dc_receive_imf(&t, raw, false).await?;
+        dc_receive_imf(&t, raw, "INBOX", 1, false).await?;

        // Delta Chat generates In-Reply-To with a starting tab when Message-ID is too long.
        let raw = br###"In-Reply-To:
@@ -3080,7 +3014,7 @@ Subject: ...
 Some reply
 "###;

-        dc_receive_imf(&t, raw, false).await?;
+        dc_receive_imf(&t, raw, "INBOX", 2, false).await?;

        let msg = t.get_last_msg().await;
        assert_eq!(msg.get_text().unwrap(), "Some reply");
@@ -3100,21 +3034,21 @@ Some reply
 Chat-Version: 1.0\n\
 Message-ID: <foobarbaz@example.org>
 To: Bob <bob@example.org>
-From: Alice <alice@example.org>
+From: Alice <alice@example.com>
 Subject: subject
-Chat-Disposition-Notification-To: alice@example.org
+Chat-Disposition-Notification-To: alice@example.com

 Message.
 "###;

        // Bob receives message.
-        dc_receive_imf(&bob, raw, false).await?;
+        dc_receive_imf(&bob, raw, "INBOX", 1, false).await?;
        let msg = bob.get_last_msg().await;
        // Message is incoming.
        assert!(msg.param.get_bool(Param::WantsMdn).unwrap());

        // Alice receives copy-to-self.
-        dc_receive_imf(&alice, raw, false).await?;
+        dc_receive_imf(&alice, raw, "INBOX", 1, false).await?;
        let msg = alice.get_last_msg().await;
        // Message is outgoing, don't send read receipt to self.
        assert!(msg.param.get_bool(Param::WantsMdn).is_none());
@@ -3130,16 +3064,18 @@ Message.
        dc_receive_imf(
            &alice,
            "Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
-                 From: alice@example.org\n\
+                 From: alice@example.com\n\
                 To: bob@example.net\n\
                 Subject: foo\n\
                 Message-ID: first@example.com\n\
                 Chat-Version: 1.0\n\
-                 Chat-Disposition-Notification-To: alice@example.org\n\
+                 Chat-Disposition-Notification-To: alice@example.com\n\
                 Date: Sun, 22 Mar 2020 22:37:57 +0000\n\
                 \n\
                 hello\n"
                .as_bytes(),
+            "INBOX",
+            1,
            false,
        )
        .await?;
@@ -3151,8 +3087,8 @@ Message.
        dc_receive_imf(
            &alice,
                "Received: (Postfix, from userid 1000); Mon, 4 Dec 2006 14:51:39 +0100 (CET)\n\
-                 From: alice@example.org\n\
-                 To: alice@example.org\n\
+                 From: alice@example.com\n\
+                 To: alice@example.com\n\
                 Subject: message opened\n\
                 Date: Sun, 22 Mar 2020 23:37:57 +0000\n\
                 Chat-Version: 1.0\n\
@@ -3177,6 +3113,8 @@ Message.
                 \n\
                 --SNIPP--"
            .as_bytes(),
+            "INBOX",
+            2,
            false,
        )
        .await?;
@@ -3187,40 +3125,4 @@ Message.

        Ok(())
    }
-
-    /// Test parsing of MDN sent by MS Exchange.
-    ///
-    /// It does not have required Original-Message-ID field, so it is useless, but we want to
-    /// recognize it as MDN nevertheless to avoid displaying it in the chat as normal message.
-    #[async_std::test]
-    async fn test_ms_exchange_mdn() -> Result<()> {
-        let t = TestContext::new_alice().await;
-        t.set_config(Config::ShowEmails, Some("2")).await?;
-
-        let original =
-            include_bytes!("../test-data/message/ms_exchange_report_original_message.eml");
-        dc_receive_imf(&t, original, false).await?;
-        let original_msg_id = t.get_last_msg().await.id;
-
-        // 1. Test mimeparser directly
-        let mdn =
-            include_bytes!("../test-data/message/ms_exchange_report_disposition_notification.eml");
-        let mimeparser = MimeMessage::from_bytes(&t.ctx, mdn).await?;
-        assert_eq!(mimeparser.mdn_reports.len(), 1);
-        assert_eq!(
-            mimeparser.mdn_reports[0].original_message_id.as_deref(),
-            Some("d5904dc344eeb5deaf9bb44603f0c716@posteo.de")
-        );
-        assert!(mimeparser.mdn_reports[0].additional_message_ids.is_empty());
-
-        // 2. Test that marking the original msg as read works
-        dc_receive_imf(&t, mdn, false).await?;
-
-        assert_eq!(
-            original_msg_id.get_state(&t).await?,
-            MessageState::OutMdnRcvd
-        );
-
-        Ok(())
-    }
 }
--- a/src/oauth2.rs
+++ b/src/oauth2.rs
@@ -41,7 +41,6 @@ struct Oauth2 {

 /// OAuth 2 Access Token Response
 #[derive(Debug, Deserialize)]
-#[allow(dead_code)]
 struct Response {
    // Should always be there according to: <https://www.oauth.com/oauth2-servers/access-tokens/access-token-response/>
    // but previous code handled its abscense.
@@ -59,7 +58,7 @@ pub async fn dc_get_oauth2_url(
    redirect_uri: &str,
 ) -> Result<Option<String>> {
    let socks5_enabled = context.get_config_bool(Config::Socks5Enabled).await?;
-    if let Some(oauth2) = Oauth2::from_address(context, addr, socks5_enabled).await {
+    if let Some(oauth2) = Oauth2::from_address(addr, socks5_enabled).await {
        context
            .sql
            .set_raw_config("oauth2_pending_redirect_uri", Some(redirect_uri))
@@ -80,7 +79,7 @@ pub async fn dc_get_oauth2_access_token(
    regenerate: bool,
 ) -> Result<Option<String>> {
    let socks5_enabled = context.get_config_bool(Config::Socks5Enabled).await?;
-    if let Some(oauth2) = Oauth2::from_address(context, addr, socks5_enabled).await {
+    if let Some(oauth2) = Oauth2::from_address(addr, socks5_enabled).await {
        let lock = context.oauth2_mutex.lock().await;

        // read generated token
@@ -226,7 +225,7 @@ pub async fn dc_get_oauth2_addr(
    code: &str,
 ) -> Result<Option<String>> {
    let socks5_enabled = context.get_config_bool(Config::Socks5Enabled).await?;
-    let oauth2 = match Oauth2::from_address(context, addr, socks5_enabled).await {
+    let oauth2 = match Oauth2::from_address(addr, socks5_enabled).await {
        Some(o) => o,
        None => return Ok(None),
    };
@@ -254,13 +253,13 @@ pub async fn dc_get_oauth2_addr(
 }

 impl Oauth2 {
-    async fn from_address(context: &Context, addr: &str, skip_mx: bool) -> Option<Self> {
+    async fn from_address(addr: &str, skip_mx: bool) -> Option<Self> {
        let addr_normalized = normalize_addr(addr);
        if let Some(domain) = addr_normalized
            .find('@')
            .map(|index| addr_normalized.split_at(index + 1).1)
        {
-            if let Some(oauth2_authorizer) = provider::get_provider_info(context, domain, skip_mx)
+            if let Some(oauth2_authorizer) = provider::get_provider_info(domain, skip_mx)
                .await
                .and_then(|provider| provider.oauth2_authorizer.as_ref())
            {
@@ -357,39 +356,32 @@ mod tests {

    #[async_std::test]
    async fn test_oauth_from_address() {
-        let t = TestContext::new().await;
        assert_eq!(
-            Oauth2::from_address(&t, "hello@gmail.com", false).await,
+            Oauth2::from_address("hello@gmail.com", false).await,
            Some(OAUTH2_GMAIL)
        );
        assert_eq!(
-            Oauth2::from_address(&t, "hello@googlemail.com", false).await,
+            Oauth2::from_address("hello@googlemail.com", false).await,
            Some(OAUTH2_GMAIL)
        );
        assert_eq!(
-            Oauth2::from_address(&t, "hello@yandex.com", false).await,
+            Oauth2::from_address("hello@yandex.com", false).await,
            Some(OAUTH2_YANDEX)
        );
        assert_eq!(
-            Oauth2::from_address(&t, "hello@yandex.ru", false).await,
+            Oauth2::from_address("hello@yandex.ru", false).await,
            Some(OAUTH2_YANDEX)
        );
-        assert_eq!(Oauth2::from_address(&t, "hello@web.de", false).await, None);
+
+        assert_eq!(Oauth2::from_address("hello@web.de", false).await, None);
    }

    #[async_std::test]
    async fn test_oauth_from_mx() {
-        // youtube staff seems to use "google workspace with oauth2", figures this out by MX lookup
-        let t = TestContext::new().await;
        assert_eq!(
-            Oauth2::from_address(&t, "hello@youtube.com", false).await,
+            Oauth2::from_address("hello@google.com", false).await,
            Some(OAUTH2_GMAIL)
        );
-        // without MX lookup, we would not know as youtube.com is not in our provider-db
-        assert_eq!(
-            Oauth2::from_address(&t, "hello@youtube.com", true).await,
-            None
-        );
    }

    #[async_std::test]
--- a/src/param.rs
+++ b/src/param.rs
@@ -110,8 +110,8 @@ pub enum Param {
    /// For Jobs
    AlsoMove = b'M',

-    /// For MDN-sending job
-    MsgId = b'I',
+    /// For Jobs: space-separated list of message recipients
+    Recipients = b'R',

    /// For Groups
    ///
@@ -136,17 +136,8 @@ pub enum Param {
    /// For Chats
    Devicetalk = b'D',

-    /// For Chats: If this is a mailing list chat, contains the List-Post address.
-    /// None if there simply is no `List-Post` header in the mailing list.
-    /// Some("") if the mailing list is using multiple different List-Post headers.
-    ///
-    /// The List-Post address is the email address where the user can write to in order to
-    /// post something to the mailing list.
-    ListPost = b'p',
-
-    /// For Contacts: If this is the List-Post address of a mailing list, contains
-    /// the List-Id of the mailing list (which is also used as the group id of the chat).
-    ListId = b's',
+    /// For MDN-sending job
+    MsgId = b'I',

    /// For Contacts: timestamp of status (aka signature or footer) update.
    StatusTimestamp = b'j',
@@ -168,12 +159,6 @@ pub enum Param {

    /// For Chats: timestamp of protection settings update.
    ProtectionSettingsTimestamp = b'L',
-
-    /// For Webxdc Message Instances: Current summary
-    WebxdcSummary = b'N',
-
-    /// For Webxdc Message Instances: timestamp of summary update.
-    WebxdcSummaryTimestamp = b'Q',
 }

 /// An object for handling key=value parameter lists.
@@ -206,11 +191,6 @@ impl fmt::Display for Params {
 impl str::FromStr for Params {
    type Err = Error;

-    /// Parse a raw string to Param.
-    ///
-    /// Silently ignore unknown keys:
-    /// they may come from a downgrade (when a shortly new version adds a key)
-    /// or from an upgrade (when a key is dropped but was used in the past)
    fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
        let mut inner = BTreeMap::new();
        let mut lines = s.lines().peekable();
@@ -230,6 +210,8 @@ impl str::FromStr for Params {

                if let Some(key) = key.as_bytes().first().and_then(|key| Param::from_u8(*key)) {
                    inner.insert(key, value);
+                } else {
+                    bail!("Unknown key: {}", key);
                }
            } else {
                bail!("Not a key-value pair: {:?}", line);
@@ -432,12 +414,10 @@ impl<'a> ParamsFile<'a> {
 mod tests {
    use super::*;

-    use anyhow::Result;
    use async_std::fs;
    use async_std::path::Path;

    use crate::test_utils::TestContext;
-    use std::str::FromStr;

    #[test]
    fn test_dc_param() {
@@ -540,14 +520,4 @@ mod tests {
        assert!(p.get_path(Param::File, &t).unwrap().is_none());
        assert!(p.get_blob(Param::File, &t, false).await.unwrap().is_none());
    }
-
-    #[async_std::test]
-    async fn test_params_unknown_key() -> Result<()> {
-        // 'Z' is used as a key that is known to be unused; these keys should be ignored silently by definition.
-        let p = Params::from_str("w=12\nZ=13\nh=14")?;
-        assert_eq!(p.len(), 2);
-        assert_eq!(p.get(Param::Width), Some("12"));
-        assert_eq!(p.get(Param::Height), Some("14"));
-        Ok(())
-    }
 }
--- a/src/peerstate.rs
+++ b/src/peerstate.rs
@@ -4,13 +4,11 @@ use std::collections::HashSet;
 use std::fmt;

 use crate::aheader::{Aheader, EncryptPreference};
-use crate::chat::{self};
-use crate::chatlist::Chatlist;
+use crate::chat::{self, ChatIdBlocked};
+use crate::constants::Blocked;
 use crate::context::Context;
 use crate::events::EventType;
 use crate::key::{DcKey, Fingerprint, SignedPublicKey};
-use crate::message::Message;
-use crate::mimeparser::SystemMessage;
 use crate::sql::Sql;
 use crate::stock_str;
 use anyhow::{bail, Result};
@@ -273,34 +271,14 @@ impl Peerstate {
                .query_get_value("SELECT id FROM contacts WHERE addr=?;", paramsv![self.addr])
                .await?
            {
-                let chats = Chatlist::try_load(context, 0, None, contact_id).await?;
+                let chat_id = ChatIdBlocked::get_for_contact(context, contact_id, Blocked::Request)
+                    .await?
+                    .id;
+
                let msg = stock_str::contact_setup_changed(context, self.addr.clone()).await;
-                for (chat_id, msg_id) in chats.iter() {
-                    let timestamp_sort = if let Some(msg_id) = msg_id {
-                        let lastmsg = Message::load_from_db(context, *msg_id).await?;
-                        lastmsg.timestamp_sort
-                    } else {
-                        context
-                            .sql
-                            .query_get_value(
-                                "SELECT created_timestamp FROM chats WHERE id=?;",
-                                paramsv![chat_id],
-                            )
-                            .await?
-                            .unwrap_or(0)
-                    };
-                    chat::add_info_msg_with_cmd(
-                        context,
-                        *chat_id,
-                        &msg,
-                        SystemMessage::Unknown,
-                        timestamp_sort,
-                        Some(timestamp),
-                        None,
-                    )
-                    .await?;
-                    context.emit_event(EventType::ChatModified(*chat_id));
-                }
+
+                chat::add_info_msg(context, chat_id, msg, timestamp).await?;
+                context.emit_event(EventType::ChatModified(chat_id));
            } else {
                bail!("contact with peerstate.addr {:?} not found", &self.addr);
            }
@@ -401,9 +379,10 @@ impl Peerstate {
    pub fn peek_key(&self, min_verified: PeerstateVerifiedStatus) -> Option<&SignedPublicKey> {
        match min_verified {
            PeerstateVerifiedStatus::BidirectVerified => self.verified_key.as_ref(),
-            PeerstateVerifiedStatus::Unverified => {
-                self.public_key.as_ref().or(self.gossip_key.as_ref())
-            }
+            PeerstateVerifiedStatus::Unverified => self
+                .public_key
+                .as_ref()
+                .or_else(|| self.gossip_key.as_ref()),
        }
    }

--- a/src/pgp.rs
+++ b/src/pgp.rs
@@ -4,11 +4,11 @@ use std::collections::{BTreeMap, HashSet};
 use std::io;
 use std::io::Cursor;

-use anyhow::{bail, ensure, format_err, Context as _, Result};
+use anyhow::{bail, ensure, format_err, Result};
 use pgp::armor::BlockType;
 use pgp::composed::{
    Deserializable, KeyType as PgpKeyType, Message, SecretKeyParamsBuilder, SignedPublicKey,
-    SignedPublicSubKey, SignedSecretKey, StandaloneSignature, SubkeyParamsBuilder,
+    SignedPublicSubKey, SignedSecretKey, SubkeyParamsBuilder,
 };
 use pgp::crypto::{HashAlgorithm, SymmetricKeyAlgorithm};
 use pgp::types::{
@@ -248,7 +248,7 @@ pub async fn pk_encrypt(
        let pkeys: Vec<SignedPublicKeyOrSubkey> = public_keys_for_encryption
            .keys()
            .iter()
-            .filter_map(select_pk_for_encryption)
+            .filter_map(|key| select_pk_for_encryption(key))
            .collect();
        let pkeys_refs: Vec<&SignedPublicKeyOrSubkey> = pkeys.iter().collect();

@@ -277,17 +277,16 @@ pub async fn pk_encrypt(
 /// Receiver private keys are provided in
 /// `private_keys_for_decryption`.
 ///
-/// Returns decrypted message and fingerprints
+/// If `ret_signature_fingerprints` is not `None`, stores fingerprints
 /// of all keys from the `public_keys_for_validation` keyring that
 /// have valid signatures there.
 #[allow(clippy::implicit_hasher)]
 pub async fn pk_decrypt(
    ctext: Vec<u8>,
    private_keys_for_decryption: Keyring<SignedSecretKey>,
-    public_keys_for_validation: &Keyring<SignedPublicKey>,
-) -> Result<(Vec<u8>, HashSet<Fingerprint>)> {
-    let mut ret_signature_fingerprints: HashSet<Fingerprint> = Default::default();
-
+    public_keys_for_validation: Keyring<SignedPublicKey>,
+    ret_signature_fingerprints: Option<&mut HashSet<Fingerprint>>,
+) -> Result<Vec<u8>> {
    let msgs = async_std::task::spawn_blocking(move || {
        let cursor = Cursor::new(ctext);
        let (msg, _) = Message::from_armor_single(cursor)?;
@@ -309,54 +308,33 @@ pub async fn pk_decrypt(
            None => bail!("The decrypted message is empty"),
        };

-        if !public_keys_for_validation.is_empty() {
-            let pkeys = public_keys_for_validation.keys();
+        if let Some(ret_signature_fingerprints) = ret_signature_fingerprints {
+            if !public_keys_for_validation.is_empty() {
+                let fingerprints = async_std::task::spawn_blocking(move || {
+                    let pkeys = public_keys_for_validation.keys();

-            let mut fingerprints: Vec<Fingerprint> = Vec::new();
-            if let signed_msg @ pgp::composed::Message::Signed { .. } = msg {
-                for pkey in pkeys {
-                    if signed_msg.verify(&pkey.primary_key).is_ok() {
-                        let fp = DcKey::fingerprint(pkey);
-                        fingerprints.push(fp);
+                    let mut fingerprints: Vec<Fingerprint> = Vec::new();
+                    if let signed_msg @ pgp::composed::Message::Signed { .. } = msg {
+                        for pkey in pkeys {
+                            if signed_msg.verify(&pkey.primary_key).is_ok() {
+                                let fp = DcKey::fingerprint(pkey);
+                                fingerprints.push(fp);
+                            }
+                        }
                    }
-                }
-            }
+                    fingerprints
+                })
+                .await;

-            ret_signature_fingerprints.extend(fingerprints);
+                ret_signature_fingerprints.extend(fingerprints);
+            }
        }
-        Ok((content, ret_signature_fingerprints))
+        Ok(content)
    } else {
        bail!("No valid messages found");
    }
 }

-/// Validates detached signature.
-pub async fn pk_validate(
-    content: &[u8],
-    signature: &[u8],
-    public_keys_for_validation: &Keyring<SignedPublicKey>,
-) -> Result<HashSet<Fingerprint>> {
-    let mut ret: HashSet<Fingerprint> = Default::default();
-
-    let standalone_signature = StandaloneSignature::from_armor_single(Cursor::new(signature))?.0;
-    let pkeys = public_keys_for_validation.keys();
-
-    // Remove trailing CRLF before the delimiter.
-    // According to RFC 3156 it is considered to be part of the MIME delimiter for the purpose of
-    // OpenPGP signature calculation.
-    let content = content
-        .get(..content.len().saturating_sub(2))
-        .context("index is out of range")?;
-
-    for pkey in pkeys {
-        if standalone_signature.verify(pkey, content).is_ok() {
-            let fp = DcKey::fingerprint(pkey);
-            ret.insert(fp);
-        }
-    }
-    Ok(ret)
-}
-
 /// Symmetric encryption.
 pub async fn symm_encrypt(passphrase: &str, plain: &[u8]) -> Result<String> {
    let lit_msg = Message::new_literal_bytes("", plain);
@@ -514,12 +492,15 @@ mod tests {
        decrypt_keyring.add(KEYS.alice_secret.clone());
        let mut sig_check_keyring: Keyring<SignedPublicKey> = Keyring::new();
        sig_check_keyring.add(KEYS.alice_public.clone());
-        let (plain, valid_signatures) = pk_decrypt(
+        let mut valid_signatures: HashSet<Fingerprint> = Default::default();
+        let plain = pk_decrypt(
            CTEXT_SIGNED.as_bytes().to_vec(),
            decrypt_keyring,
-            &sig_check_keyring,
+            sig_check_keyring,
+            Some(&mut valid_signatures),
        )
        .await
+        .map_err(|err| println!("{:?}", err))
        .unwrap();
        assert_eq!(plain, CLEARTEXT);
        assert_eq!(valid_signatures.len(), 1);
@@ -529,12 +510,15 @@ mod tests {
        decrypt_keyring.add(KEYS.bob_secret.clone());
        let mut sig_check_keyring = Keyring::new();
        sig_check_keyring.add(KEYS.alice_public.clone());
-        let (plain, valid_signatures) = pk_decrypt(
+        let mut valid_signatures: HashSet<Fingerprint> = Default::default();
+        let plain = pk_decrypt(
            CTEXT_SIGNED.as_bytes().to_vec(),
            decrypt_keyring,
-            &sig_check_keyring,
+            sig_check_keyring,
+            Some(&mut valid_signatures),
        )
        .await
+        .map_err(|err| println!("{:?}", err))
        .unwrap();
        assert_eq!(plain, CLEARTEXT);
        assert_eq!(valid_signatures.len(), 1);
@@ -545,10 +529,15 @@ mod tests {
        let mut keyring = Keyring::new();
        keyring.add(KEYS.alice_secret.clone());
        let empty_keyring = Keyring::new();
-        let (plain, valid_signatures) =
-            pk_decrypt(CTEXT_SIGNED.as_bytes().to_vec(), keyring, &empty_keyring)
-                .await
-                .unwrap();
+        let mut valid_signatures: HashSet<Fingerprint> = Default::default();
+        let plain = pk_decrypt(
+            CTEXT_SIGNED.as_bytes().to_vec(),
+            keyring,
+            empty_keyring,
+            Some(&mut valid_signatures),
+        )
+        .await
+        .unwrap();
        assert_eq!(plain, CLEARTEXT);
        assert_eq!(valid_signatures.len(), 0);
    }
@@ -560,10 +549,12 @@ mod tests {
        decrypt_keyring.add(KEYS.bob_secret.clone());
        let mut sig_check_keyring = Keyring::new();
        sig_check_keyring.add(KEYS.bob_public.clone());
-        let (plain, valid_signatures) = pk_decrypt(
+        let mut valid_signatures: HashSet<Fingerprint> = Default::default();
+        let plain = pk_decrypt(
            CTEXT_SIGNED.as_bytes().to_vec(),
            decrypt_keyring,
-            &sig_check_keyring,
+            sig_check_keyring,
+            Some(&mut valid_signatures),
        )
        .await
        .unwrap();
@@ -576,14 +567,34 @@ mod tests {
        let mut decrypt_keyring = Keyring::new();
        decrypt_keyring.add(KEYS.bob_secret.clone());
        let sig_check_keyring = Keyring::new();
-        let (plain, valid_signatures) = pk_decrypt(
+        let mut valid_signatures: HashSet<Fingerprint> = Default::default();
+        let plain = pk_decrypt(
            CTEXT_UNSIGNED.as_bytes().to_vec(),
            decrypt_keyring,
-            &sig_check_keyring,
+            sig_check_keyring,
+            Some(&mut valid_signatures),
        )
        .await
        .unwrap();
        assert_eq!(plain, CLEARTEXT);
        assert_eq!(valid_signatures.len(), 0);
    }
+
+    #[async_std::test]
+    async fn test_decrypt_signed_no_sigret() {
+        // Check decrypting signed cyphertext without providing the HashSet for signatures.
+        let mut decrypt_keyring = Keyring::new();
+        decrypt_keyring.add(KEYS.bob_secret.clone());
+        let mut sig_check_keyring = Keyring::new();
+        sig_check_keyring.add(KEYS.alice_public.clone());
+        let plain = pk_decrypt(
+            CTEXT_SIGNED.as_bytes().to_vec(),
+            decrypt_keyring,
+            sig_check_keyring,
+            None,
+        )
+        .await
+        .unwrap();
+        assert_eq!(plain, CLEARTEXT);
+    }
 }
--- a/src/plaintext.rs
+++ b/src/plaintext.rs
@@ -41,7 +41,7 @@ impl PlainText {
            // as <http://example.org> cannot be handled correctly
            // (they would become &lt;http://example.org&gt; where the trailing &gt; would become a valid url part).
            // to avoid double encoding, we escape our html-entities by \r that must not be used in the string elsewhere.
-            let line = line.to_string().replace('\r', "");
+            let line = line.to_string().replace("\r", "");

            let mut line = LINKIFY_MAIL_RE
                .replace_all(&*line, "\rLTa href=\rQUOTmailto:$1\rQUOT\rGT$1\rLT/a\rGT")
--- a/src/provider.rs
+++ b/src/provider.rs
@@ -3,10 +3,8 @@
 mod data;

 use crate::config::Config;
-use crate::context::Context;
 use crate::provider::data::{PROVIDER_DATA, PROVIDER_IDS, PROVIDER_UPDATED};
-use anyhow::Result;
-use async_std_resolver::{config, resolver, resolver_from_system_conf, AsyncStdResolver};
+use async_std_resolver::resolver_from_system_conf;
 use chrono::{NaiveDateTime, NaiveTime};

 #[derive(Debug, Display, Copy, Clone, PartialEq, FromPrimitive, ToPrimitive)]
@@ -83,23 +81,6 @@ pub struct Provider {
    pub oauth2_authorizer: Option<Oauth2Authorizer>,
 }

-/// Get resolver to query MX records.
-///
-/// We first try resolver_from_system_conf() which reads the system's resolver from `/etc/resolv.conf`.
-/// This does not work at least on some Androids, therefore we use use ResolverConfig::default()
-/// which default eg. to google's 8.8.8.8 or 8.8.4.4 as a fallback.
-async fn get_resolver() -> Result<AsyncStdResolver> {
-    if let Ok(resolver) = resolver_from_system_conf().await {
-        return Ok(resolver);
-    }
-    let resolver = resolver(
-        config::ResolverConfig::default(),
-        config::ResolverOpts::default(),
-    )
-    .await?;
-    Ok(resolver)
-}
-
 /// Returns provider for the given domain.
 ///
 /// This function looks up domain in offline database first. If not
@@ -108,19 +89,15 @@ async fn get_resolver() -> Result<AsyncStdResolver> {
 ///
 /// For compatibility, email address can be passed to this function
 /// instead of the domain.
-pub async fn get_provider_info(
-    context: &Context,
-    domain: &str,
-    skip_mx: bool,
-) -> Option<&'static Provider> {
-    let domain = domain.rsplit('@').next()?;
+pub async fn get_provider_info(domain: &str, skip_mx: bool) -> Option<&'static Provider> {
+    let domain = domain.rsplitn(2, '@').next()?;

    if let Some(provider) = get_provider_by_domain(domain) {
        return Some(provider);
    }

    if !skip_mx {
-        if let Some(provider) = get_provider_by_mx(context, domain).await {
+        if let Some(provider) = get_provider_by_mx(domain).await {
            return Some(provider);
        }
    }
@@ -140,8 +117,8 @@ pub fn get_provider_by_domain(domain: &str) -> Option<&'static Provider> {
 /// Finds a provider based on MX record for the given domain.
 ///
 /// For security reasons, only Gmail can be configured this way.
-pub async fn get_provider_by_mx(context: &Context, domain: &str) -> Option<&'static Provider> {
-    if let Ok(resolver) = get_resolver().await {
+pub async fn get_provider_by_mx(domain: &str) -> Option<&'static Provider> {
+    if let Ok(resolver) = resolver_from_system_conf().await {
        let mut fqdn: String = domain.to_string();
        if !fqdn.ends_with('.') {
            fqdn.push('.');
@@ -166,8 +143,6 @@ pub async fn get_provider_by_mx(context: &Context, domain: &str) -> Option<&'sta
                }
            }
        }
-    } else {
-        warn!(context, "cannot get a resolver to check MX records.");
    }

    None
@@ -194,7 +169,6 @@ mod tests {

    use super::*;
    use crate::dc_tools::time;
-    use crate::test_utils::TestContext;
    use chrono::NaiveDate;

    #[test]
@@ -244,13 +218,12 @@ mod tests {

    #[async_std::test]
    async fn test_get_provider_info() {
-        let t = TestContext::new().await;
-        assert!(get_provider_info(&t, "", false).await.is_none());
-        assert!(get_provider_info(&t, "google.com", false).await.unwrap().id == "gmail");
+        assert!(get_provider_info("", false).await.is_none());
+        assert!(get_provider_info("google.com", false).await.unwrap().id == "gmail");

        // get_provider_info() accepts email addresses for backwards compatibility
        assert!(
-            get_provider_info(&t, "example@google.com", false)
+            get_provider_info("example@google.com", false)
                .await
                .unwrap()
                .id
@@ -269,10 +242,4 @@ mod tests {
        assert!(get_provider_update_timestamp() <= time());
        assert!(get_provider_update_timestamp() > timestamp_past);
    }
-
-    #[async_std::test]
-    async fn test_get_resolver() -> Result<()> {
-        assert!(get_resolver().await.is_ok());
-        Ok(())
-    }
 }
--- a/src/provider/data.rs
+++ b/src/provider/data.rs
@@ -282,23 +282,61 @@ static P_DISROOT: Lazy<Provider> = Lazy::new(|| Provider {
    before_login_hint: "",
    after_login_hint: "",
    overview_page: "https://providers.delta.chat/disroot",
+    server: vec![],
+    config_defaults: None,
+    strict_tls: true,
+    max_smtp_rcpt_to: None,
+    oauth2_authorizer: None,
+});
+
+// dubby.org.md: dubby.org
+static P_DUBBY_ORG: Lazy<Provider> = Lazy::new(|| Provider {
+    id: "dubby.org",
+    status: Status::Ok,
+    before_login_hint: "",
+    after_login_hint: "",
+    overview_page: "https://providers.delta.chat/dubby-org",
    server: vec![
        Server {
            protocol: Imap,
            socket: Ssl,
-            hostname: "disroot.org",
+            hostname: "dubby.org",
            port: 993,
            username_pattern: Email,
        },
        Server {
            protocol: Smtp,
            socket: Starttls,
-            hostname: "disroot.org",
+            hostname: "dubby.org",
            port: 587,
            username_pattern: Email,
        },
+        Server {
+            protocol: Smtp,
+            socket: Ssl,
+            hostname: "dubby.org",
+            port: 465,
+            username_pattern: Email,
+        },
    ],
-    config_defaults: None,
+    config_defaults: Some(vec![
+        ConfigDefault {
+            key: Config::BccSelf,
+            value: "1",
+        },
+        ConfigDefault {
+            key: Config::SentboxWatch,
+            value: "0",
+        },
+        ConfigDefault {
+            key: Config::MvboxWatch,
+            value: "0",
+        },
+        ConfigDefault {
+            key: Config::MvboxMove,
+            value: "0",
+        },
+    ]),
    strict_tls: true,
    max_smtp_rcpt_to: None,
    oauth2_authorizer: None,
@@ -366,7 +404,7 @@ static P_EXAMPLE_COM: Lazy<Provider> = Lazy::new(|| {
 }
 });

-// fastmail.md: 123mail.org, 150mail.com, 150ml.com, 16mail.com, 2-mail.com, 4email.net, 50mail.com, airpost.net, allmail.net, bestmail.us, cluemail.com, elitemail.org, emailcorner.net, emailengine.net, emailengine.org, emailgroups.net, emailplus.org, emailuser.net, eml.cc, f-m.fm, fast-email.com, fast-mail.org, fastem.com, fastemail.us, fastemailer.com, fastest.cc, fastimap.com, fastmail.cn, fastmail.co.uk, fastmail.com, fastmail.com.au, fastmail.de, fastmail.es, fastmail.fm, fastmail.fr, fastmail.im, fastmail.in, fastmail.jp, fastmail.mx, fastmail.net, fastmail.nl, fastmail.org, fastmail.se, fastmail.to, fastmail.tw, fastmail.uk, fastmail.us, fastmailbox.net, fastmessaging.com, fea.st, fmail.co.uk, fmailbox.com, fmgirl.com, fmguy.com, ftml.net, h-mail.us, hailmail.net, imap-mail.com, imap.cc, imapmail.org, inoutbox.com, internet-e-mail.com, internet-mail.org, internetemails.net, internetmailing.net, jetemail.net, justemail.net, letterboxes.org, mail-central.com, mail-page.com, mailandftp.com, mailas.com, mailbolt.com, mailc.net, mailcan.com, mailforce.net, mailftp.com, mailhaven.com, mailingaddress.org, mailite.com, mailmight.com, mailnew.com, mailsent.net, mailservice.ms, mailup.net, mailworks.org, ml1.net, mm.st, myfastmail.com, mymacmail.com, nospammail.net, ownmail.net, petml.com, postinbox.com, postpro.net, proinbox.com, promessage.com, realemail.net, reallyfast.biz, reallyfast.info, rushpost.com, sent.as, sent.at, sent.com, speedpost.net, speedymail.org, ssl-mail.com, swift-mail.com, the-fastest.net, the-quickest.com, theinternetemail.com, veryfast.biz, veryspeedy.net, warpmail.net, xsmail.com, yepmail.net, your-mail.com
+// fastmail.md: fastmail.com
 static P_FASTMAIL: Lazy<Provider> = Lazy::new(|| Provider {
    id: "fastmail",
    status: Status::Preparation,
@@ -389,6 +427,13 @@ static P_FASTMAIL: Lazy<Provider> = Lazy::new(|| Provider {
            port: 465,
            username_pattern: Email,
        },
+        Server {
+            protocol: Smtp,
+            socket: Starttls,
+            hostname: "smtp.fastmail.com",
+            port: 587,
+            username_pattern: Email,
+        },
    ],
    config_defaults: None,
    strict_tls: true,
@@ -430,6 +475,10 @@ static P_FIVE_CHAT: Lazy<Provider> = Lazy::new(|| Provider {
            key: Config::SentboxWatch,
            value: "0",
        },
+        ConfigDefault {
+            key: Config::MvboxWatch,
+            value: "0",
+        },
        ConfigDefault {
            key: Config::MvboxMove,
            value: "0",
@@ -619,35 +668,6 @@ static P_ICLOUD: Lazy<Provider> = Lazy::new(|| Provider {
    oauth2_authorizer: None,
 });

-// infomaniak.com.md: ik.me
-static P_INFOMANIAK_COM: Lazy<Provider> = Lazy::new(|| Provider {
-    id: "infomaniak.com",
-    status: Status::Ok,
-    before_login_hint: "",
-    after_login_hint: "",
-    overview_page: "https://providers.delta.chat/infomaniak-com",
-    server: vec![
-        Server {
-            protocol: Imap,
-            socket: Ssl,
-            hostname: "mail.infomaniak.com",
-            port: 993,
-            username_pattern: Email,
-        },
-        Server {
-            protocol: Smtp,
-            socket: Ssl,
-            hostname: "mail.infomaniak.com",
-            port: 465,
-            username_pattern: Email,
-        },
-    ],
-    config_defaults: None,
-    strict_tls: true,
-    max_smtp_rcpt_to: Some(10),
-    oauth2_authorizer: None,
-});
-
 // kolst.com.md: kolst.com
 static P_KOLST_COM: Lazy<Provider> = Lazy::new(|| Provider {
    id: "kolst.com",
@@ -676,41 +696,12 @@ static P_KONTENT_COM: Lazy<Provider> = Lazy::new(|| Provider {
    oauth2_authorizer: None,
 });

-// mail.de.md: mail.de
-static P_MAIL_DE: Lazy<Provider> = Lazy::new(|| Provider {
-    id: "mail.de",
-    status: Status::Ok,
-    before_login_hint: "",
-    after_login_hint: "",
-    overview_page: "https://providers.delta.chat/mail-de",
-    server: vec![
-        Server {
-            protocol: Imap,
-            socket: Ssl,
-            hostname: "imap.mail.de",
-            port: 993,
-            username_pattern: Email,
-        },
-        Server {
-            protocol: Smtp,
-            socket: Ssl,
-            hostname: "smtp.mail.de",
-            port: 465,
-            username_pattern: Email,
-        },
-    ],
-    config_defaults: None,
-    strict_tls: true,
-    max_smtp_rcpt_to: None,
-    oauth2_authorizer: None,
-});
-
 // mail.ru.md: mail.ru, inbox.ru, internet.ru, bk.ru, list.ru
 static P_MAIL_RU: Lazy<Provider> = Lazy::new(|| {
    Provider {
    id: "mail.ru",
-    status: Status::Preparation,
-    before_login_hint: "Вам необходимо сгенерировать \"пароль для внешнего приложения\" в веб-интерфейсе mail.ru, чтобы mail.ru работал с Delta Chat.",
+    status: Status::Ok,
+    before_login_hint: "Не рекомендуется использовать mail.ru, потому что он разряжает вашу батарею быстрее, чем другие провайдеры.",
    after_login_hint: "",
    overview_page: "https://providers.delta.chat/mail-ru",
    server: vec![
@@ -760,22 +751,7 @@ static P_MAILBOX_ORG: Lazy<Provider> = Lazy::new(|| Provider {
    before_login_hint: "",
    after_login_hint: "",
    overview_page: "https://providers.delta.chat/mailbox-org",
-    server: vec![
-        Server {
-            protocol: Imap,
-            socket: Ssl,
-            hostname: "imap.mailbox.org",
-            port: 993,
-            username_pattern: Email,
-        },
-        Server {
-            protocol: Smtp,
-            socket: Ssl,
-            hostname: "smtp.mailbox.org",
-            port: 465,
-            username_pattern: Email,
-        },
-    ],
+    server: vec![],
    config_defaults: None,
    strict_tls: true,
    max_smtp_rcpt_to: None,
@@ -847,6 +823,10 @@ static P_NAUTA_CU: Lazy<Provider> = Lazy::new(|| Provider {
            key: Config::SentboxWatch,
            value: "0",
        },
+        ConfigDefault {
+            key: Config::MvboxWatch,
+            value: "0",
+        },
        ConfigDefault {
            key: Config::MvboxMove,
            value: "0",
@@ -898,7 +878,7 @@ static P_NAVER: Lazy<Provider> = Lazy::new(|| Provider {
    oauth2_authorizer: None,
 });

-// outlook.com.md: hotmail.com, outlook.com, office365.com, outlook.com.tr, live.com, outlook.de
+// outlook.com.md: hotmail.com, outlook.com, office365.com, outlook.com.tr, live.com
 static P_OUTLOOK_COM: Lazy<Provider> = Lazy::new(|| Provider {
    id: "outlook.com",
    status: Status::Ok,
@@ -927,7 +907,7 @@ static P_OUTLOOK_COM: Lazy<Provider> = Lazy::new(|| Provider {
    oauth2_authorizer: None,
 });

-// posteo.md: posteo.de, posteo.af, posteo.at, posteo.be, posteo.ca, posteo.ch, posteo.cl, posteo.co, posteo.co.uk, posteo.com.br, posteo.cr, posteo.cz, posteo.dk, posteo.ee, posteo.es, posteo.eu, posteo.fi, posteo.gl, posteo.gr, posteo.hn, posteo.hr, posteo.hu, posteo.ie, posteo.in, posteo.is, posteo.it, posteo.jp, posteo.la, posteo.li, posteo.lt, posteo.lu, posteo.me, posteo.mx, posteo.my, posteo.net, posteo.nl, posteo.no, posteo.nz, posteo.org, posteo.pe, posteo.pl, posteo.pm, posteo.pt, posteo.ro, posteo.ru, posteo.se, posteo.sg, posteo.si, posteo.tn, posteo.uk, posteo.us
+// posteo.md: posteo.de, posteo.af, posteo.at, posteo.be, posteo.ch, posteo.cl, posteo.co, posteo.co.uk, posteo.com.br, posteo.cr, posteo.cz, posteo.dk, posteo.ee, posteo.es, posteo.eu, posteo.fi, posteo.gl, posteo.gr, posteo.hn, posteo.hr, posteo.hu, posteo.ie, posteo.in, posteo.is, posteo.it, posteo.jp, posteo.la, posteo.li, posteo.lt, posteo.lu, posteo.me, posteo.mx, posteo.my, posteo.net, posteo.nl, posteo.no, posteo.nz, posteo.org, posteo.pe, posteo.pl, posteo.pm, posteo.pt, posteo.ro, posteo.ru, posteo.se, posteo.sg, posteo.si, posteo.tn, posteo.uk, posteo.us
 static P_POSTEO: Lazy<Provider> = Lazy::new(|| Provider {
    id: "posteo",
    status: Status::Ok,
@@ -956,7 +936,7 @@ static P_POSTEO: Lazy<Provider> = Lazy::new(|| Provider {
    oauth2_authorizer: None,
 });

-// protonmail.md: protonmail.com, protonmail.ch, pm.me
+// protonmail.md: protonmail.com, protonmail.ch
 static P_PROTONMAIL: Lazy<Provider> = Lazy::new(|| {
    Provider {
    id: "protonmail",
@@ -999,22 +979,7 @@ static P_RISEUP_NET: Lazy<Provider> = Lazy::new(|| Provider {
    before_login_hint: "",
    after_login_hint: "",
    overview_page: "https://providers.delta.chat/riseup-net",
-    server: vec![
-        Server {
-            protocol: Imap,
-            socket: Ssl,
-            hostname: "mail.riseup.net",
-            port: 993,
-            username_pattern: Email,
-        },
-        Server {
-            protocol: Smtp,
-            socket: Ssl,
-            hostname: "mail.riseup.net",
-            port: 465,
-            username_pattern: Email,
-        },
-    ],
+    server: vec![],
    config_defaults: None,
    strict_tls: true,
    max_smtp_rcpt_to: None,
@@ -1071,22 +1036,7 @@ static P_SYSTEMLI_ORG: Lazy<Provider> = Lazy::new(|| Provider {
    before_login_hint: "",
    after_login_hint: "",
    overview_page: "https://providers.delta.chat/systemli-org",
-    server: vec![
-        Server {
-            protocol: Imap,
-            socket: Ssl,
-            hostname: "mail.systemli.org",
-            port: 993,
-            username_pattern: Email,
-        },
-        Server {
-            protocol: Smtp,
-            socket: Ssl,
-            hostname: "mail.systemli.org",
-            port: 465,
-            username_pattern: Email,
-        },
-    ],
+    server: vec![],
    config_defaults: None,
    strict_tls: true,
    max_smtp_rcpt_to: None,
@@ -1151,6 +1101,10 @@ static P_TESTRUN: Lazy<Provider> = Lazy::new(|| Provider {
            key: Config::SentboxWatch,
            value: "0",
        },
+        ConfigDefault {
+            key: Config::MvboxWatch,
+            value: "0",
+        },
        ConfigDefault {
            key: Config::MvboxMove,
            value: "0",
@@ -1483,128 +1437,13 @@ pub(crate) static PROVIDER_DATA: Lazy<HashMap<&'static str, &'static Provider>>
        ("comcast.net", &*P_COMCAST),
        ("dismail.de", &*P_DISMAIL_DE),
        ("disroot.org", &*P_DISROOT),
+        ("dubby.org", &*P_DUBBY_ORG),
        ("e.email", &*P_E_EMAIL),
        ("espiv.net", &*P_ESPIV_NET),
        ("example.com", &*P_EXAMPLE_COM),
        ("example.org", &*P_EXAMPLE_COM),
        ("example.net", &*P_EXAMPLE_COM),
-        ("123mail.org", &*P_FASTMAIL),
-        ("150mail.com", &*P_FASTMAIL),
-        ("150ml.com", &*P_FASTMAIL),
-        ("16mail.com", &*P_FASTMAIL),
-        ("2-mail.com", &*P_FASTMAIL),
-        ("4email.net", &*P_FASTMAIL),
-        ("50mail.com", &*P_FASTMAIL),
-        ("airpost.net", &*P_FASTMAIL),
-        ("allmail.net", &*P_FASTMAIL),
-        ("bestmail.us", &*P_FASTMAIL),
-        ("cluemail.com", &*P_FASTMAIL),
-        ("elitemail.org", &*P_FASTMAIL),
-        ("emailcorner.net", &*P_FASTMAIL),
-        ("emailengine.net", &*P_FASTMAIL),
-        ("emailengine.org", &*P_FASTMAIL),
-        ("emailgroups.net", &*P_FASTMAIL),
-        ("emailplus.org", &*P_FASTMAIL),
-        ("emailuser.net", &*P_FASTMAIL),
-        ("eml.cc", &*P_FASTMAIL),
-        ("f-m.fm", &*P_FASTMAIL),
-        ("fast-email.com", &*P_FASTMAIL),
-        ("fast-mail.org", &*P_FASTMAIL),
-        ("fastem.com", &*P_FASTMAIL),
-        ("fastemail.us", &*P_FASTMAIL),
-        ("fastemailer.com", &*P_FASTMAIL),
-        ("fastest.cc", &*P_FASTMAIL),
-        ("fastimap.com", &*P_FASTMAIL),
-        ("fastmail.cn", &*P_FASTMAIL),
-        ("fastmail.co.uk", &*P_FASTMAIL),
        ("fastmail.com", &*P_FASTMAIL),
-        ("fastmail.com.au", &*P_FASTMAIL),
-        ("fastmail.de", &*P_FASTMAIL),
-        ("fastmail.es", &*P_FASTMAIL),
-        ("fastmail.fm", &*P_FASTMAIL),
-        ("fastmail.fr", &*P_FASTMAIL),
-        ("fastmail.im", &*P_FASTMAIL),
-        ("fastmail.in", &*P_FASTMAIL),
-        ("fastmail.jp", &*P_FASTMAIL),
-        ("fastmail.mx", &*P_FASTMAIL),
-        ("fastmail.net", &*P_FASTMAIL),
-        ("fastmail.nl", &*P_FASTMAIL),
-        ("fastmail.org", &*P_FASTMAIL),
-        ("fastmail.se", &*P_FASTMAIL),
-        ("fastmail.to", &*P_FASTMAIL),
-        ("fastmail.tw", &*P_FASTMAIL),
-        ("fastmail.uk", &*P_FASTMAIL),
-        ("fastmail.us", &*P_FASTMAIL),
-        ("fastmailbox.net", &*P_FASTMAIL),
-        ("fastmessaging.com", &*P_FASTMAIL),
-        ("fea.st", &*P_FASTMAIL),
-        ("fmail.co.uk", &*P_FASTMAIL),
-        ("fmailbox.com", &*P_FASTMAIL),
-        ("fmgirl.com", &*P_FASTMAIL),
-        ("fmguy.com", &*P_FASTMAIL),
-        ("ftml.net", &*P_FASTMAIL),
-        ("h-mail.us", &*P_FASTMAIL),
-        ("hailmail.net", &*P_FASTMAIL),
-        ("imap-mail.com", &*P_FASTMAIL),
-        ("imap.cc", &*P_FASTMAIL),
-        ("imapmail.org", &*P_FASTMAIL),
-        ("inoutbox.com", &*P_FASTMAIL),
-        ("internet-e-mail.com", &*P_FASTMAIL),
-        ("internet-mail.org", &*P_FASTMAIL),
-        ("internetemails.net", &*P_FASTMAIL),
-        ("internetmailing.net", &*P_FASTMAIL),
-        ("jetemail.net", &*P_FASTMAIL),
-        ("justemail.net", &*P_FASTMAIL),
-        ("letterboxes.org", &*P_FASTMAIL),
-        ("mail-central.com", &*P_FASTMAIL),
-        ("mail-page.com", &*P_FASTMAIL),
-        ("mailandftp.com", &*P_FASTMAIL),
-        ("mailas.com", &*P_FASTMAIL),
-        ("mailbolt.com", &*P_FASTMAIL),
-        ("mailc.net", &*P_FASTMAIL),
-        ("mailcan.com", &*P_FASTMAIL),
-        ("mailforce.net", &*P_FASTMAIL),
-        ("mailftp.com", &*P_FASTMAIL),
-        ("mailhaven.com", &*P_FASTMAIL),
-        ("mailingaddress.org", &*P_FASTMAIL),
-        ("mailite.com", &*P_FASTMAIL),
-        ("mailmight.com", &*P_FASTMAIL),
-        ("mailnew.com", &*P_FASTMAIL),
-        ("mailsent.net", &*P_FASTMAIL),
-        ("mailservice.ms", &*P_FASTMAIL),
-        ("mailup.net", &*P_FASTMAIL),
-        ("mailworks.org", &*P_FASTMAIL),
-        ("ml1.net", &*P_FASTMAIL),
-        ("mm.st", &*P_FASTMAIL),
-        ("myfastmail.com", &*P_FASTMAIL),
-        ("mymacmail.com", &*P_FASTMAIL),
-        ("nospammail.net", &*P_FASTMAIL),
-        ("ownmail.net", &*P_FASTMAIL),
-        ("petml.com", &*P_FASTMAIL),
-        ("postinbox.com", &*P_FASTMAIL),
-        ("postpro.net", &*P_FASTMAIL),
-        ("proinbox.com", &*P_FASTMAIL),
-        ("promessage.com", &*P_FASTMAIL),
-        ("realemail.net", &*P_FASTMAIL),
-        ("reallyfast.biz", &*P_FASTMAIL),
-        ("reallyfast.info", &*P_FASTMAIL),
-        ("rushpost.com", &*P_FASTMAIL),
-        ("sent.as", &*P_FASTMAIL),
-        ("sent.at", &*P_FASTMAIL),
-        ("sent.com", &*P_FASTMAIL),
-        ("speedpost.net", &*P_FASTMAIL),
-        ("speedymail.org", &*P_FASTMAIL),
-        ("ssl-mail.com", &*P_FASTMAIL),
-        ("swift-mail.com", &*P_FASTMAIL),
-        ("the-fastest.net", &*P_FASTMAIL),
-        ("the-quickest.com", &*P_FASTMAIL),
-        ("theinternetemail.com", &*P_FASTMAIL),
-        ("veryfast.biz", &*P_FASTMAIL),
-        ("veryspeedy.net", &*P_FASTMAIL),
-        ("warpmail.net", &*P_FASTMAIL),
-        ("xsmail.com", &*P_FASTMAIL),
-        ("yepmail.net", &*P_FASTMAIL),
-        ("your-mail.com", &*P_FASTMAIL),
        ("firemail.at", &*P_FIREMAIL_DE),
        ("firemail.de", &*P_FIREMAIL_DE),
        ("five.chat", &*P_FIVE_CHAT),
@@ -1628,10 +1467,8 @@ pub(crate) static PROVIDER_DATA: Lazy<HashMap<&'static str, &'static Provider>>
        ("icloud.com", &*P_ICLOUD),
        ("me.com", &*P_ICLOUD),
        ("mac.com", &*P_ICLOUD),
-        ("ik.me", &*P_INFOMANIAK_COM),
        ("kolst.com", &*P_KOLST_COM),
        ("kontent.com", &*P_KONTENT_COM),
-        ("mail.de", &*P_MAIL_DE),
        ("mail.ru", &*P_MAIL_RU),
        ("inbox.ru", &*P_MAIL_RU),
        ("internet.ru", &*P_MAIL_RU),
@@ -1648,12 +1485,10 @@ pub(crate) static PROVIDER_DATA: Lazy<HashMap<&'static str, &'static Provider>>
        ("office365.com", &*P_OUTLOOK_COM),
        ("outlook.com.tr", &*P_OUTLOOK_COM),
        ("live.com", &*P_OUTLOOK_COM),
-        ("outlook.de", &*P_OUTLOOK_COM),
        ("posteo.de", &*P_POSTEO),
        ("posteo.af", &*P_POSTEO),
        ("posteo.at", &*P_POSTEO),
        ("posteo.be", &*P_POSTEO),
-        ("posteo.ca", &*P_POSTEO),
        ("posteo.ch", &*P_POSTEO),
        ("posteo.cl", &*P_POSTEO),
        ("posteo.co", &*P_POSTEO),
@@ -1702,7 +1537,6 @@ pub(crate) static PROVIDER_DATA: Lazy<HashMap<&'static str, &'static Provider>>
        ("posteo.us", &*P_POSTEO),
        ("protonmail.com", &*P_PROTONMAIL),
        ("protonmail.ch", &*P_PROTONMAIL),
-        ("pm.me", &*P_PROTONMAIL),
        ("qq.com", &*P_QQ),
        ("foxmail.com", &*P_QQ),
        ("riseup.net", &*P_RISEUP_NET),
@@ -1799,6 +1633,7 @@ pub(crate) static PROVIDER_IDS: Lazy<HashMap<&'static str, &'static Provider>> =
        ("comcast", &*P_COMCAST),
        ("dismail.de", &*P_DISMAIL_DE),
        ("disroot", &*P_DISROOT),
+        ("dubby.org", &*P_DUBBY_ORG),
        ("e.email", &*P_E_EMAIL),
        ("espiv.net", &*P_ESPIV_NET),
        ("example.com", &*P_EXAMPLE_COM),
@@ -1813,10 +1648,8 @@ pub(crate) static PROVIDER_IDS: Lazy<HashMap<&'static str, &'static Provider>> =
        ("i.ua", &*P_I_UA),
        ("i3.net", &*P_I3_NET),
        ("icloud", &*P_ICLOUD),
-        ("infomaniak.com", &*P_INFOMANIAK_COM),
        ("kolst.com", &*P_KOLST_COM),
        ("kontent.com", &*P_KONTENT_COM),
-        ("mail.de", &*P_MAIL_DE),
        ("mail.ru", &*P_MAIL_RU),
        ("mail2tor", &*P_MAIL2TOR),
        ("mailbox.org", &*P_MAILBOX_ORG),
@@ -1853,4 +1686,4 @@ pub(crate) static PROVIDER_IDS: Lazy<HashMap<&'static str, &'static Provider>> =
 });

 pub static PROVIDER_UPDATED: Lazy<chrono::NaiveDate> =
-    Lazy::new(|| chrono::NaiveDate::from_ymd(2022, 1, 31));
+    Lazy::new(|| chrono::NaiveDate::from_ymd(2021, 9, 29));
--- a/src/qr.rs
+++ b/src/qr.rs
@@ -9,7 +9,7 @@ use std::collections::BTreeMap;
 use crate::chat::{self, get_chat_id_by_grpid, ChatIdBlocked};
 use crate::config::Config;
 use crate::constants::Blocked;
-use crate::contact::{addr_normalize, may_be_valid_addr, Contact, ContactId, Origin};
+use crate::contact::{addr_normalize, may_be_valid_addr, Contact, Origin};
 use crate::context::Context;
 use crate::dc_tools::time;
 use crate::key::Fingerprint;
@@ -30,7 +30,7 @@ const HTTPS_SCHEME: &str = "https://";
 #[derive(Debug, Clone, PartialEq)]
 pub enum Qr {
    AskVerifyContact {
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
@@ -38,16 +38,16 @@ pub enum Qr {
    AskVerifyGroup {
        grpname: String,
        grpid: String,
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
    },
    FprOk {
-        contact_id: ContactId,
+        contact_id: u32,
    },
    FprMismatch {
-        contact_id: Option<ContactId>,
+        contact_id: Option<u32>,
    },
    FprWithoutAddr {
        fingerprint: String,
@@ -60,7 +60,7 @@ pub enum Qr {
        instance_pattern: String,
    },
    Addr {
-        contact_id: ContactId,
+        contact_id: u32,
    },
    Url {
        url: String,
@@ -69,7 +69,7 @@ pub enum Qr {
        text: String,
    },
    WithdrawVerifyContact {
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
@@ -77,13 +77,13 @@ pub enum Qr {
    WithdrawVerifyGroup {
        grpname: String,
        grpid: String,
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
    },
    ReviveVerifyContact {
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
@@ -91,7 +91,7 @@ pub enum Qr {
    ReviveVerifyGroup {
        grpname: String,
        grpid: String,
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
@@ -173,7 +173,7 @@ async fn decode_openpgp(context: &Context, qr: &str) -> Result<Qr> {
    };

    let name = if let Some(encoded_name) = param.get("n") {
-        let encoded_name = encoded_name.replace('+', "%20"); // sometimes spaces are encoded as `+`
+        let encoded_name = encoded_name.replace("+", "%20"); // sometimes spaces are encoded as `+`
        match percent_decode_str(&encoded_name).decode_utf8() {
            Ok(name) => name.to_string(),
            Err(err) => bail!("Invalid name: {}", err),
@@ -188,7 +188,7 @@ async fn decode_openpgp(context: &Context, qr: &str) -> Result<Qr> {

    let grpname = if grpid.is_some() {
        if let Some(encoded_name) = param.get("g") {
-            let encoded_name = encoded_name.replace('+', "%20"); // sometimes spaces are encoded as `+`
+            let encoded_name = encoded_name.replace("+", "%20"); // sometimes spaces are encoded as `+`
            match percent_decode_str(&encoded_name).decode_utf8() {
                Ok(name) => Some(name.to_string()),
                Err(err) => bail!("Invalid group name: {}", err),
@@ -282,7 +282,7 @@ async fn decode_openpgp(context: &Context, qr: &str) -> Result<Qr> {
            chat::add_info_msg(
                context,
                chat.id,
-                &format!("{} verified.", peerstate.addr),
+                format!("{} verified.", peerstate.addr),
                time(),
            )
            .await?;
@@ -304,14 +304,14 @@ async fn decode_openpgp(context: &Context, qr: &str) -> Result<Qr> {
 fn decode_account(qr: &str) -> Result<Qr> {
    let payload = qr
        .get(DCACCOUNT_SCHEME.len()..)
-        .context("invalid DCACCOUNT payload")?;
+        .ok_or_else(|| format_err!("Invalid DCACCOUNT payload"))?;
    let url =
        url::Url::parse(payload).with_context(|| format!("Invalid account URL: {:?}", payload))?;
    if url.scheme() == "http" || url.scheme() == "https" {
        Ok(Qr::Account {
            domain: url
                .host_str()
-                .context("can't extract WebRTC instance domain")?
+                .ok_or_else(|| format_err!("Can't extract WebRTC instance domain"))?
                .to_string(),
        })
    } else {
@@ -323,7 +323,7 @@ fn decode_account(qr: &str) -> Result<Qr> {
 fn decode_webrtc_instance(_context: &Context, qr: &str) -> Result<Qr> {
    let payload = qr
        .get(DCWEBRTC_SCHEME.len()..)
-        .context("invalid DCWEBRTC payload")?;
+        .ok_or_else(|| format_err!("Invalid DCWEBRTC payload"))?;

    let (_type, url) = Message::parse_webrtc_instance(payload);
    let url =
@@ -333,7 +333,7 @@ fn decode_webrtc_instance(_context: &Context, qr: &str) -> Result<Qr> {
        Ok(Qr::WebrtcInstance {
            domain: url
                .host_str()
-                .context("can't extract WebRTC instance domain")?
+                .ok_or_else(|| format_err!("Can't extract WebRTC instance domain"))?
                .to_string(),
            instance_pattern: payload.to_string(),
        })
@@ -424,7 +424,7 @@ pub async fn set_config_from_qr(context: &Context, qr: &str) -> Result<()> {
            grpid,
            ..
        } => {
-            let chat_id = get_chat_id_by_grpid(context, &grpid)
+            let chat_id = get_chat_id_by_grpid(context, grpid)
                .await?
                .map(|(chat_id, _protected, _blocked)| chat_id);
            token::save(
@@ -711,7 +711,7 @@ mod tests {
            ..
        } = qr
        {
-            assert_ne!(contact_id, ContactId::UNDEFINED);
+            assert_ne!(contact_id, 0);
            assert_eq!(grpname, "test ? test !");
        } else {
            bail!("Wrong QR code type");
@@ -729,7 +729,7 @@ mod tests {
            ..
        } = qr
        {
-            assert_ne!(contact_id, ContactId::UNDEFINED);
+            assert_ne!(contact_id, 0);
            assert_eq!(grpname, "test ? test !");

            let contact = Contact::get_by_id(&ctx.ctx, contact_id).await?;
@@ -751,7 +751,7 @@ mod tests {
        ).await?;

        if let Qr::AskVerifyContact { contact_id, .. } = qr {
-            assert_ne!(contact_id, ContactId::UNDEFINED);
+            assert_ne!(contact_id, 0);
        } else {
            bail!("Wrong QR code type");
        }
@@ -792,12 +792,12 @@ mod tests {
    async fn test_decode_openpgp_fingerprint() -> Result<()> {
        let ctx = TestContext::new().await;

-        let alice_contact_id = Contact::create(&ctx, "Alice", "alice@example.org")
+        let alice_contact_id = Contact::create(&ctx, "Alice", "alice@example.com")
            .await
            .context("failed to create contact")?;
        let pub_key = alice_keypair().public;
        let peerstate = Peerstate {
-            addr: "alice@example.org".to_string(),
+            addr: "alice@example.com".to_string(),
            last_seen: 1,
            last_seen_autocrypt: 1,
            prefer_encrypt: EncryptPreference::Mutual,
@@ -818,7 +818,7 @@ mod tests {

        let qr = check_qr(
            &ctx.ctx,
-            "OPENPGP4FPR:1234567890123456789012345678901234567890#a=alice@example.org",
+            "OPENPGP4FPR:1234567890123456789012345678901234567890#a=alice@example.com",
        )
        .await?;
        if let Qr::FprMismatch { contact_id, .. } = qr {
@@ -829,7 +829,7 @@ mod tests {

        let qr = check_qr(
            &ctx.ctx,
-            &format!("OPENPGP4FPR:{}#a=alice@example.org", pub_key.fingerprint()),
+            &format!("OPENPGP4FPR:{}#a=alice@example.com", pub_key.fingerprint()),
        )
        .await?;
        if let Qr::FprOk { contact_id, .. } = qr {
--- a/src/qr_code_generator.rs
+++ b/src/qr_code_generator.rs
@@ -6,7 +6,8 @@ use crate::{
    chat::{Chat, ChatId},
    color::color_int_to_hex_string,
    config::Config,
-    contact::{Contact, ContactId},
+    constants::DC_CONTACT_ID_SELF,
+    contact::Contact,
    context::Context,
    securejoin, stock_str,
 };
@@ -40,7 +41,7 @@ async fn generate_join_group_qr_code(context: &Context, chat_id: ChatId) -> Resu
 }

 async fn generate_verification_qr(context: &Context) -> Result<String> {
-    let contact = Contact::get_by_id(context, ContactId::SELF).await?;
+    let contact = Contact::get_by_id(context, DC_CONTACT_ID_SELF).await?;

    let avatar = match contact.get_profile_image(context).await? {
        Some(path) => {
@@ -88,23 +89,21 @@ fn inner_generate_secure_join_qr_code(
    let mut w = tagger::new(&mut svg);

    w.elem("svg", |d| {
-        d.attr("xmlns", "http://www.w3.org/2000/svg")?;
-        d.attr("viewBox", format_args!("0 0 {} {}", width, height))?;
-        Ok(())
-    })?
+        d.attr("xmlns", "http://www.w3.org/2000/svg")
+            .attr("viewBox", format_args!("0 0 {} {}", width, height));
+    })
    .build(|w| {
        // White Background apears like a card
        w.single("rect", |d| {
-            d.attr("x", card_border_size)?;
-            d.attr("y", card_border_size)?;
-            d.attr("rx", card_roundness)?;
-            d.attr("stroke", "#c6c6c6")?;
-            d.attr("stroke-width", card_border_size)?;
-            d.attr("width", width - (card_border_size * 2.0))?;
-            d.attr("height", height - (card_border_size * 2.0))?;
-            d.attr("style", "fill:#f2f2f2")?;
-            Ok(())
-        })?;
+            d.attr("x", card_border_size)
+                .attr("y", card_border_size)
+                .attr("rx", card_roundness)
+                .attr("stroke", "#c6c6c6")
+                .attr("stroke-width", card_border_size)
+                .attr("width", width - (card_border_size * 2.0))
+                .attr("height", height - (card_border_size * 2.0))
+                .attr("style", "fill:#f2f2f2");
+        });
        // Qrcode
        w.elem("g", |d| {
            d.attr(
@@ -114,12 +113,12 @@ fn inner_generate_secure_join_qr_code(
                    (width - qr_code_size) / 2.0,
                    ((height - qr_code_size) / 2.0) - qr_translate_up
                ),
-            )
+            );
            // If the qr code should be in the wrong place,
            // we could also translate and scale the points in the path already,
            // but that would make the resulting svg way bigger in size and might bring up rounding issues,
            // so better avoid doing it manually if possible
-        })?
+        })
        .build(|w| {
            w.single("path", |d| {
                let mut path_data = String::with_capacity(0);
@@ -133,16 +132,16 @@ fn inner_generate_secure_join_qr_code(
                    }
                }

-                d.attr("style", "fill:#000000")?;
-                d.attr("d", path_data)?;
-                d.attr("transform", format!("scale({})", scale))
-            })
-        })?;
+                d.attr("style", "fill:#000000")
+                    .attr("d", path_data)
+                    .attr("transform", format!("scale({})", scale));
+            });
+        });

        // Text
        const BIG_TEXT_CHARS_PER_LINE: usize = 32;
        const SMALL_TEXT_CHARS_PER_LINE: usize = 38;
-        let chars_per_line = if qrcode_description.len() > SMALL_TEXT_CHARS_PER_LINE * 2 {
+        let chars_per_line = if qrcode_description.len() > SMALL_TEXT_CHARS_PER_LINE*2 {
            SMALL_TEXT_CHARS_PER_LINE
        } else {
            BIG_TEXT_CHARS_PER_LINE
@@ -153,27 +152,27 @@ fn inner_generate_secure_join_qr_code(
        } else {
            (19.0, -10.0)
        };
-        for (count, line) in lines.split('\n').enumerate() {
+        for (count, line) in lines.split('\n').enumerate()
+        {
            w.elem("text", |d| {
-                d.attr(
-                    "y",
-                    (count as f32 * (text_font_size * 1.2)) + text_y_pos + text_y_shift,
-                )?;
-                d.attr("x", width / 2.0)?;
-                d.attr("text-anchor", "middle")?;
-                d.attr(
-                    "style",
-                    format!(
-                        "font-family:sans-serif;\
+                d.attr("y", (count as f32 * (text_font_size * 1.2)) + text_y_pos + text_y_shift)
+                    .attr("x", width / 2.0)
+                    .attr("text-anchor", "middle")
+                    .attr(
+                        "style",
+                        format!(
+                            "font-family:sans-serif;\
                        font-weight:bold;\
                        font-size:{}px;\
                        fill:#000000;\
                        stroke:none",
-                        text_font_size
-                    ),
-                )
-            })?
-            .build(|w| w.put_raw(line))?;
+                            text_font_size
+                        ),
+                    );
+            })
+            .build(|w| {
+                w.put_raw(line);
+            });
        }
        // contact avatar in middle of qrcode
        const LOGO_SIZE: f32 = 94.4;
@@ -184,64 +183,68 @@ fn inner_generate_secure_join_qr_code(
            ((height - qr_code_size) / 2.0) - qr_translate_up + logo_position_in_qr;

        w.single("circle", |d| {
-            d.attr("cx", logo_position_x + HALF_LOGO_SIZE)?;
-            d.attr("cy", logo_position_y + HALF_LOGO_SIZE)?;
-            d.attr("r", HALF_LOGO_SIZE + avatar_border_size)?;
-            d.attr("style", "fill:#f2f2f2")
-        })?;
+            d.attr("cx", logo_position_x + HALF_LOGO_SIZE)
+                .attr("cy", logo_position_y + HALF_LOGO_SIZE)
+                .attr("r", HALF_LOGO_SIZE + avatar_border_size)
+                .attr("style", "fill:#f2f2f2");
+        });

        if let Some(img) = avatar {
-            w.elem("defs", tagger::no_attr())?.build(|w| {
-                w.elem("clipPath", |d| d.attr("id", "avatar-cut"))?
-                    .build(|w| {
-                        w.single("circle", |d| {
-                            d.attr("cx", logo_position_x + HALF_LOGO_SIZE)?;
-                            d.attr("cy", logo_position_y + HALF_LOGO_SIZE)?;
-                            d.attr("r", HALF_LOGO_SIZE)
-                        })
-                    })
-            })?;
+            w.elem("defs", |_| {}).build(|w| {
+                w.elem("clipPath", |d| {
+                    d.attr("id", "avatar-cut");
+                })
+                .build(|w| {
+                    w.single("circle", |d| {
+                        d.attr("cx", logo_position_x + HALF_LOGO_SIZE)
+                            .attr("cy", logo_position_y + HALF_LOGO_SIZE)
+                            .attr("r", HALF_LOGO_SIZE);
+                    });
+                });
+            });

            w.single("image", |d| {
-                d.attr("x", logo_position_x)?;
-                d.attr("y", logo_position_y)?;
-                d.attr("width", HALF_LOGO_SIZE * 2.0)?;
-                d.attr("height", HALF_LOGO_SIZE * 2.0)?;
-                d.attr("preserveAspectRatio", "none")?;
-                d.attr("clip-path", "url(#avatar-cut)")?;
-                d.attr(
-                    "href", /*might need xlink:href instead if it doesn't work on older devices?*/
-                    format!("data:image/jpeg;base64,{}", base64::encode(img)),
-                )
-            })?;
+                d.attr("x", logo_position_x)
+                    .attr("y", logo_position_y)
+                    .attr("width", HALF_LOGO_SIZE * 2.0)
+                    .attr("height", HALF_LOGO_SIZE * 2.0)
+                    .attr("preserveAspectRatio", "none")
+                    .attr("clip-path", "url(#avatar-cut)")
+                    .attr(
+                        "href" /*might need xlink:href instead if it doesn't work on older devices?*/, 
+                        format!("data:image/jpeg;base64,{}", base64::encode(img)),
+                    );
+            });
        } else {
            w.single("circle", |d| {
-                d.attr("cx", logo_position_x + HALF_LOGO_SIZE)?;
-                d.attr("cy", logo_position_y + HALF_LOGO_SIZE)?;
-                d.attr("r", HALF_LOGO_SIZE)?;
-                d.attr("style", format!("fill:{}", &color))
-            })?;
+                d.attr("cx", logo_position_x + HALF_LOGO_SIZE)
+                    .attr("cy", logo_position_y + HALF_LOGO_SIZE)
+                    .attr("r", HALF_LOGO_SIZE)
+                    .attr("style", format!("fill:{}", &color));
+            });

            let avatar_font_size = LOGO_SIZE * 0.65;
            let font_offset = avatar_font_size * 0.1;
            w.elem("text", |d| {
-                d.attr("y", logo_position_y + HALF_LOGO_SIZE + font_offset)?;
-                d.attr("x", logo_position_x + HALF_LOGO_SIZE)?;
-                d.attr("text-anchor", "middle")?;
-                d.attr("dominant-baseline", "central")?;
-                d.attr("alignment-baseline", "middle")?;
-                d.attr(
-                    "style",
-                    format!(
-                        "font-family:sans-serif;\
+                d.attr("y", logo_position_y + HALF_LOGO_SIZE + font_offset)
+                    .attr("x", logo_position_x + HALF_LOGO_SIZE)
+                    .attr("text-anchor", "middle")
+                    .attr("dominant-baseline", "central")
+                    .attr("alignment-baseline", "middle")
+                    .attr(
+                        "style",
+                        format!(
+                            "font-family:sans-serif;\
                            font-weight:400;\
                            font-size:{}px;\
                            fill:#ffffff;",
-                        avatar_font_size
-                    ),
-                )
-            })?
-            .build(|w| w.put_raw(avatar_letter.to_uppercase()))?;
+                            avatar_font_size
+                        ),
+                    );
+            })
+            .build(|w| {
+                w.put_raw(avatar_letter.to_uppercase());
+            });
        }

        // Footer logo
@@ -255,10 +258,12 @@ fn inner_generate_secure_join_qr_code(
                    (width - FOOTER_WIDTH) / 2.0,
                    height - logo_offset - FOOTER_HEIGHT - text_y_shift
                ),
-            )
-        })?
-        .build(|w| w.put_raw(include_str!("../assets/qrcode_logo_footer.svg")))
-    })?;
+            );
+        })
+        .build(|w| {
+            w.put_raw(include_str!("../assets/qrcode_logo_footer.svg"));
+        });
+    });

    Ok(svg)
 }
--- a/src/quota.rs
+++ b/src/quota.rs
@@ -1,17 +1,18 @@
 //! # Support for IMAP QUOTA extension.

-use anyhow::{anyhow, Context as _, Result};
+use anyhow::{anyhow, Result};
 use async_imap::types::{Quota, QuotaResource};
 use std::collections::BTreeMap;

 use crate::chat::add_device_msg_with_importance;
 use crate::config::Config;
+use crate::constants::Viewtype;
 use crate::context::Context;
 use crate::dc_tools::time;
 use crate::imap::scan_folders::get_watched_folders;
 use crate::imap::Imap;
 use crate::job::{Action, Status};
-use crate::message::{Message, Viewtype};
+use crate::message::Message;
 use crate::param::Params;
 use crate::{job, stock_str, EventType};

@@ -63,7 +64,7 @@ async fn get_unique_quota_roots_and_usage(
                    .iter()
                    .find(|q| &q.root_name == quota_root_name)
                    .cloned()
-                    .context("quota_root should have a quota")?;
+                    .ok_or_else(|| anyhow!("quota_root should have a quota"))?;
                // replace old quotas, because between fetching quotaroots for folders,
                // messages could be recieved and so the usage could have been changed
                *unique_quota_roots
@@ -95,7 +96,7 @@ fn get_highest_usage<'t>(
        }
    }

-    highest.context("no quota_resource found, this is unexpected")
+    highest.ok_or_else(|| anyhow!("no quota_resource found, this is unexpected"))
 }

 /// Checks if a quota warning is needed.
@@ -136,7 +137,7 @@ impl Context {
        }

        let quota = if imap.can_check_quota() {
-            let folders = get_watched_folders(self).await?;
+            let folders = get_watched_folders(self).await;
            get_unique_quota_roots_and_usage(folders, imap).await
        } else {
            Err(anyhow!(stock_str::not_supported_by_provider(self).await))
--- a/src/scheduler.rs
+++ b/src/scheduler.rs
@@ -1,4 +1,4 @@
-use anyhow::{bail, Context as _, Result};
+use anyhow::{bail, Result};
 use async_std::prelude::*;
 use async_std::{
    channel::{self, Receiver, Sender},
@@ -8,19 +8,17 @@ use async_std::{
 use crate::config::Config;
 use crate::context::Context;
 use crate::dc_tools::maybe_add_time_based_warnings;
-use crate::dc_tools::time;
-use crate::ephemeral::{self, delete_expired_imap_messages};
 use crate::imap::Imap;
 use crate::job::{self, Thread};
-use crate::location;
-use crate::log::LogExt;
-use crate::smtp::{send_smtp_messages, Smtp};
-use crate::sql;
+use crate::message::MsgId;
+use crate::smtp::Smtp;

 use self::connectivity::ConnectivityStore;

 pub(crate) mod connectivity;

+pub(crate) struct StopToken;
+
 /// Job and connection scheduler.
 #[derive(Debug)]
 #[allow(clippy::large_enum_variant)]
@@ -35,10 +33,6 @@ pub(crate) enum Scheduler {
        sentbox_handle: Option<task::JoinHandle<()>>,
        smtp: SmtpConnectionState,
        smtp_handle: Option<task::JoinHandle<()>>,
-        ephemeral_handle: Option<task::JoinHandle<()>>,
-        ephemeral_interrupt_send: Sender<()>,
-        location_handle: Option<task::JoinHandle<()>>,
-        location_interrupt_send: Sender<()>,
    },
 }

@@ -64,14 +58,6 @@ impl Context {
    pub(crate) async fn interrupt_smtp(&self, info: InterruptInfo) {
        self.scheduler.read().await.interrupt_smtp(info).await;
    }
-
-    pub(crate) async fn interrupt_ephemeral_task(&self) {
-        self.scheduler.read().await.interrupt_ephemeral_task().await;
-    }
-
-    pub(crate) async fn interrupt_location(&self) {
-        self.scheduler.read().await.interrupt_location().await;
-    }
 }

 async fn inbox_loop(ctx: Context, started: Sender<()>, inbox_handlers: ImapConnectionHandlers) {
@@ -81,48 +67,69 @@ async fn inbox_loop(ctx: Context, started: Sender<()>, inbox_handlers: ImapConne
    let ImapConnectionHandlers {
        mut connection,
        stop_receiver,
+        shutdown_sender,
    } = inbox_handlers;

    let ctx1 = ctx.clone();
    let fut = async move {
+        started
+            .send(())
+            .await
+            .expect("inbox loop, missing started receiver");
        let ctx = ctx1;
-        if let Err(err) = started.send(()).await {
-            warn!(ctx, "inbox loop, missing started receiver: {}", err);
-            return;
-        };

+        // track number of continously executed jobs
+        let mut jobs_loaded = 0;
        let mut info = InterruptInfo::default();
        loop {
-            let job = match job::load_next(&ctx, Thread::Imap, &info).await {
-                Err(err) => {
-                    error!(ctx, "Failed loading job from the database: {:#}.", err);
-                    None
-                }
-                Ok(job) => job,
-            };
-
-            match job {
-                Some(job) => {
+            match job::load_next(&ctx, Thread::Imap, &info)
+                .await
+                .ok()
+                .flatten()
+            {
+                Some(job) if jobs_loaded <= 20 => {
+                    jobs_loaded += 1;
                    job::perform_job(&ctx, job::Connection::Inbox(&mut connection), job).await;
                    info = Default::default();
                }
+                Some(job) => {
+                    // Let the fetch run, but return back to the job afterwards.
+                    jobs_loaded = 0;
+                    if ctx
+                        .get_config_bool(Config::InboxWatch)
+                        .await
+                        .unwrap_or_default()
+                    {
+                        info!(ctx, "postponing imap-job {} to run fetch...", job);
+                        fetch(&ctx, &mut connection).await;
+                    }
+                }
                None => {
+                    jobs_loaded = 0;
+
+                    // Expunge folder if needed, e.g. if some jobs have
+                    // deleted messages on the server.
+                    if let Err(err) = connection.maybe_close_folder(&ctx).await {
+                        warn!(ctx, "failed to close folder: {:?}", err);
+                    }
+
                    maybe_add_time_based_warnings(&ctx).await;

-                    match ctx.get_config_i64(Config::LastHousekeeping).await {
-                        Ok(last_housekeeping_time) => {
-                            let next_housekeeping_time =
-                                last_housekeeping_time.saturating_add(60 * 60 * 24);
-                            if next_housekeeping_time <= time() {
-                                sql::housekeeping(&ctx).await.ok_or_log(&ctx);
-                            }
-                        }
-                        Err(err) => {
-                            warn!(ctx, "Failed to get last housekeeping time: {}", err);
+                    info = if ctx
+                        .get_config_bool(Config::InboxWatch)
+                        .await
+                        .unwrap_or_default()
+                    {
+                        fetch_idle(&ctx, &mut connection, Config::ConfiguredInboxFolder).await
+                    } else {
+                        if let Err(err) = connection.scan_folders(&ctx).await {
+                            warn!(ctx, "{}", err);
+                            connection.connectivity.set_err(&ctx, err).await;
+                        } else {
+                            connection.connectivity.set_not_configured(&ctx).await;
                        }
+                        connection.fake_idle(&ctx, None).await
                    };
-
-                    info = fetch_idle(&ctx, &mut connection, Config::ConfiguredInboxFolder).await;
                }
            }
        }
@@ -135,6 +142,36 @@ async fn inbox_loop(ctx: Context, started: Sender<()>, inbox_handlers: ImapConne
        })
        .race(fut)
        .await;
+    shutdown_sender
+        .send(())
+        .await
+        .expect("inbox loop, missing shutdown receiver");
+}
+
+async fn fetch(ctx: &Context, connection: &mut Imap) {
+    match ctx.get_config(Config::ConfiguredInboxFolder).await {
+        Ok(Some(watch_folder)) => {
+            if let Err(err) = connection.prepare(ctx).await {
+                warn!(ctx, "Could not connect: {}", err);
+                return;
+            }
+
+            // fetch
+            if let Err(err) = connection.fetch(ctx, &watch_folder).await {
+                connection.trigger_reconnect(ctx).await;
+                warn!(ctx, "{:#}", err);
+            }
+        }
+        Ok(None) => {
+            info!(ctx, "Can not fetch inbox folder, not set");
+        }
+        Err(err) => {
+            warn!(
+                ctx,
+                "Can not fetch inbox folder, failed to get config: {:?}", err
+            );
+        }
+    }
 }

 async fn fetch_idle(ctx: &Context, connection: &mut Imap, folder: Config) -> InterruptInfo {
@@ -146,76 +183,22 @@ async fn fetch_idle(ctx: &Context, connection: &mut Imap, folder: Config) -> Int
                return connection.fake_idle(ctx, Some(watch_folder)).await;
            }

-            if folder == Config::ConfiguredInboxFolder {
-                if let Err(err) = connection
-                    .store_seen_flags_on_imap(ctx)
-                    .await
-                    .context("store_seen_flags_on_imap failed")
-                {
-                    warn!(ctx, "{:#}", err);
-                }
-            }
-
-            // Fetch the watched folder.
-            if let Err(err) = connection
-                .fetch_move_delete(ctx, &watch_folder, false)
-                .await
-            {
+            // fetch
+            if let Err(err) = connection.fetch(ctx, &watch_folder).await {
                connection.trigger_reconnect(ctx).await;
                warn!(ctx, "{:#}", err);
-                return InterruptInfo::new(false);
+                return InterruptInfo::new(false, None);
            }

-            // Mark expired messages for deletion. Marked messages will be deleted from the server
-            // on the next iteration of `fetch_move_delete`. `delete_expired_imap_messages` is not
-            // called right before `fetch_move_delete` because it is not well optimized and would
-            // otherwise slow down message fetching.
-            if let Err(err) = delete_expired_imap_messages(ctx)
-                .await
-                .context("delete_expired_imap_messages failed")
-            {
-                warn!(ctx, "{:#}", err);
-            }
-
-            // Scan additional folders only after finishing fetching the watched folder.
-            //
-            // On iOS the application has strictly limited time to work in background, so we may not
-            // be able to scan all folders before time is up if there are many of them.
            if folder == Config::ConfiguredInboxFolder {
                // Only scan on the Inbox thread in order to prevent parallel scans, which might lead to duplicate messages
-                match connection.scan_folders(ctx).await {
-                    Err(err) => {
-                        // Don't reconnect, if there is a problem with the connection we will realize this when IDLEing
-                        // but maybe just one folder can't be selected or something
-                        warn!(ctx, "{}", err);
-                    }
-                    Ok(true) => {
-                        // Fetch the watched folder again in case scanning other folder moved messages
-                        // there.
-                        //
-                        // In most cases this will select the watched folder and return because there are
-                        // no new messages. We want to select the watched folder anyway before going IDLE
-                        // there, so this does not take additional protocol round-trip.
-                        if let Err(err) = connection
-                            .fetch_move_delete(ctx, &watch_folder, false)
-                            .await
-                        {
-                            connection.trigger_reconnect(ctx).await;
-                            warn!(ctx, "{:#}", err);
-                            return InterruptInfo::new(false);
-                        }
-                    }
-                    Ok(false) => {}
+                if let Err(err) = connection.scan_folders(ctx).await {
+                    // Don't reconnect, if there is a problem with the connection we will realize this when IDLEing
+                    // but maybe just one folder can't be selected or something
+                    warn!(ctx, "{}", err);
                }
            }

-            // Synchronize Seen flags.
-            connection
-                .sync_seen_flags(ctx, &watch_folder)
-                .await
-                .context("sync_seen_flags")
-                .ok_or_log(ctx);
-
            connection.connectivity.set_connected(ctx).await;

            // idle
@@ -225,7 +208,7 @@ async fn fetch_idle(ctx: &Context, connection: &mut Imap, folder: Config) -> Int
                    Err(err) => {
                        connection.trigger_reconnect(ctx).await;
                        warn!(ctx, "{}", err);
-                        InterruptInfo::new(false)
+                        InterruptInfo::new(false, None)
                    }
                }
            } else {
@@ -259,16 +242,17 @@ async fn simple_imap_loop(
    let ImapConnectionHandlers {
        mut connection,
        stop_receiver,
+        shutdown_sender,
    } = inbox_handlers;

    let ctx1 = ctx.clone();

    let fut = async move {
+        started
+            .send(())
+            .await
+            .expect("simple imap loop, missing started receive");
        let ctx = ctx1;
-        if let Err(err) = started.send(()).await {
-            warn!(&ctx, "simple imap loop, missing started receiver: {}", err);
-            return;
-        }

        loop {
            fetch_idle(&ctx, &mut connection, folder).await;
@@ -282,6 +266,10 @@ async fn simple_imap_loop(
        })
        .race(fut)
        .await;
+    shutdown_sender
+        .send(())
+        .await
+        .expect("simple imap loop, missing shutdown receiver");
 }

 async fn smtp_loop(ctx: Context, started: Sender<()>, smtp_handlers: SmtpConnectionHandlers) {
@@ -291,46 +279,31 @@ async fn smtp_loop(ctx: Context, started: Sender<()>, smtp_handlers: SmtpConnect
    let SmtpConnectionHandlers {
        mut connection,
        stop_receiver,
+        shutdown_sender,
        idle_interrupt_receiver,
    } = smtp_handlers;

    let ctx1 = ctx.clone();
    let fut = async move {
+        started
+            .send(())
+            .await
+            .expect("smtp loop, missing started receiver");
        let ctx = ctx1;
-        if let Err(err) = started.send(()).await {
-            warn!(&ctx, "smtp loop, missing started receiver: {}", err);
-            return;
-        }

-        let mut timeout = None;
        let mut interrupt_info = Default::default();
        loop {
-            let job = match job::load_next(&ctx, Thread::Smtp, &interrupt_info).await {
-                Err(err) => {
-                    error!(ctx, "Failed loading job from the database: {:#}.", err);
-                    None
-                }
-                Ok(job) => job,
-            };
-
-            match job {
+            match job::load_next(&ctx, Thread::Smtp, &interrupt_info)
+                .await
+                .ok()
+                .flatten()
+            {
                Some(job) => {
                    info!(ctx, "executing smtp job");
                    job::perform_job(&ctx, job::Connection::Smtp(&mut connection), job).await;
                    interrupt_info = Default::default();
                }
                None => {
-                    let res = send_smtp_messages(&ctx, &mut connection).await;
-                    if let Err(err) = &res {
-                        warn!(ctx, "send_smtp_messages failed: {:#}", err);
-                    }
-                    let success = res.unwrap_or(false);
-                    timeout = if success {
-                        None
-                    } else {
-                        Some(timeout.map_or(30, |timeout: u64| timeout.saturating_mul(3)))
-                    };
-
                    // Fake Idle
                    info!(ctx, "smtp fake idle - started");
                    match &connection.last_send_error {
@@ -338,27 +311,7 @@ async fn smtp_loop(ctx: Context, started: Sender<()>, smtp_handlers: SmtpConnect
                        Some(err) => connection.connectivity.set_err(&ctx, err).await,
                    }

-                    // If send_smtp_messages() failed, we set a timeout for the fake-idle so that
-                    // sending is retried (at the latest) after the timeout. If sending fails
-                    // again, we increase the timeout exponentially, in order not to do lots of
-                    // unnecessary retries.
-                    if let Some(timeout) = timeout {
-                        info!(
-                            ctx,
-                            "smtp has messages to retry, planning to retry {} seconds later",
-                            timeout
-                        );
-                        let duration = std::time::Duration::from_secs(timeout);
-                        interrupt_info = async_std::future::timeout(duration, async {
-                            idle_interrupt_receiver.recv().await.unwrap_or_default()
-                        })
-                        .await
-                        .unwrap_or_default();
-                    } else {
-                        info!(ctx, "smtp has no messages to retry, waiting for interrupt");
-                        interrupt_info = idle_interrupt_receiver.recv().await.unwrap_or_default();
-                    };
-
+                    interrupt_info = idle_interrupt_receiver.recv().await.unwrap_or_default();
                    info!(ctx, "smtp fake idle - interrupted")
                }
            }
@@ -372,15 +325,15 @@ async fn smtp_loop(ctx: Context, started: Sender<()>, smtp_handlers: SmtpConnect
        })
        .race(fut)
        .await;
+    shutdown_sender
+        .send(())
+        .await
+        .expect("smtp loop, missing shutdown receiver");
 }

 impl Scheduler {
-    /// Start the scheduler, returns error if it is already running.
+    /// Start the scheduler, panics if it is already running.
    pub async fn start(&mut self, ctx: Context) -> Result<()> {
-        if self.is_running() {
-            bail!("scheduler is already stopped");
-        }
-
        let (mvbox, mvbox_handlers) = ImapConnectionState::new(&ctx).await?;
        let (sentbox, sentbox_handlers) = ImapConnectionState::new(&ctx).await?;
        let (smtp, smtp_handlers) = SmtpConnectionState::new();
@@ -392,8 +345,6 @@ impl Scheduler {
        let (sentbox_start_send, sentbox_start_recv) = channel::bounded(1);
        let mut sentbox_handle = None;
        let (smtp_start_send, smtp_start_recv) = channel::bounded(1);
-        let (ephemeral_interrupt_send, ephemeral_interrupt_recv) = channel::bounded(1);
-        let (location_interrupt_send, location_interrupt_recv) = channel::bounded(1);

        let inbox_handle = {
            let ctx = ctx.clone();
@@ -402,7 +353,7 @@ impl Scheduler {
            }))
        };

-        if ctx.should_watch_mvbox().await? {
+        if ctx.get_config_bool(Config::MvboxWatch).await? {
            let ctx = ctx.clone();
            mvbox_handle = Some(task::spawn(async move {
                simple_imap_loop(
@@ -417,7 +368,7 @@ impl Scheduler {
            mvbox_start_send
                .send(())
                .await
-                .context("mvbox start send, missing receiver")?;
+                .expect("mvbox start send, missing receiver");
            mvbox_handlers
                .connection
                .connectivity
@@ -440,7 +391,7 @@ impl Scheduler {
            sentbox_start_send
                .send(())
                .await
-                .context("sentbox start send, missing receiver")?;
+                .expect("sentbox start send, missing receiver");
            sentbox_handlers
                .connection
                .connectivity
@@ -455,20 +406,6 @@ impl Scheduler {
            }))
        };

-        let ephemeral_handle = {
-            let ctx = ctx.clone();
-            Some(task::spawn(async move {
-                ephemeral::ephemeral_loop(&ctx, ephemeral_interrupt_recv).await;
-            }))
-        };
-
-        let location_handle = {
-            let ctx = ctx.clone();
-            Some(task::spawn(async move {
-                location::location_loop(&ctx, location_interrupt_recv).await;
-            }))
-        };
-
        *self = Scheduler::Running {
            inbox,
            mvbox,
@@ -478,10 +415,6 @@ impl Scheduler {
            mvbox_handle,
            sentbox_handle,
            smtp_handle,
-            ephemeral_handle,
-            ephemeral_interrupt_send,
-            location_handle,
-            location_interrupt_send,
        };

        // wait for all loops to be started
@@ -504,10 +437,10 @@ impl Scheduler {
            return;
        }

-        self.interrupt_inbox(InterruptInfo::new(true))
-            .join(self.interrupt_mvbox(InterruptInfo::new(true)))
-            .join(self.interrupt_sentbox(InterruptInfo::new(true)))
-            .join(self.interrupt_smtp(InterruptInfo::new(true)))
+        self.interrupt_inbox(InterruptInfo::new(true, None))
+            .join(self.interrupt_mvbox(InterruptInfo::new(true, None)))
+            .join(self.interrupt_sentbox(InterruptInfo::new(true, None)))
+            .join(self.interrupt_smtp(InterruptInfo::new(true, None)))
            .await;
    }

@@ -516,10 +449,10 @@ impl Scheduler {
            return;
        }

-        self.interrupt_inbox(InterruptInfo::new(false))
-            .join(self.interrupt_mvbox(InterruptInfo::new(false)))
-            .join(self.interrupt_sentbox(InterruptInfo::new(false)))
-            .join(self.interrupt_smtp(InterruptInfo::new(false)))
+        self.interrupt_inbox(InterruptInfo::new(false, None))
+            .join(self.interrupt_mvbox(InterruptInfo::new(false, None)))
+            .join(self.interrupt_sentbox(InterruptInfo::new(false, None)))
+            .join(self.interrupt_smtp(InterruptInfo::new(false, None)))
            .await;
    }

@@ -547,31 +480,11 @@ impl Scheduler {
        }
    }

-    async fn interrupt_ephemeral_task(&self) {
-        if let Scheduler::Running {
-            ref ephemeral_interrupt_send,
-            ..
-        } = self
-        {
-            ephemeral_interrupt_send.try_send(()).ok();
-        }
-    }
-
-    async fn interrupt_location(&self) {
-        if let Scheduler::Running {
-            ref location_interrupt_send,
-            ..
-        } = self
-        {
-            location_interrupt_send.try_send(()).ok();
-        }
-    }
-
-    /// Halt the scheduler.
-    pub(crate) async fn stop(&mut self) -> Result<()> {
+    /// Halts the scheduler, must be called first, and then `stop`.
+    pub(crate) async fn pre_stop(&self) -> StopToken {
        match self {
            Scheduler::Stopped => {
-                bail!("scheduler is already stopped");
+                panic!("WARN: already stopped");
            }
            Scheduler::Running {
                inbox,
@@ -582,23 +495,39 @@ impl Scheduler {
                sentbox_handle,
                smtp,
                smtp_handle,
-                ephemeral_handle,
-                location_handle,
                ..
            } => {
                if inbox_handle.is_some() {
-                    inbox.stop().await?;
+                    inbox.stop().await;
                }
                if mvbox_handle.is_some() {
-                    mvbox.stop().await?;
+                    mvbox.stop().await;
                }
                if sentbox_handle.is_some() {
-                    sentbox.stop().await?;
+                    sentbox.stop().await;
                }
                if smtp_handle.is_some() {
-                    smtp.stop().await?;
+                    smtp.stop().await;
                }

+                StopToken
+            }
+        }
+    }
+
+    /// Halt the scheduler, must only be called after pre_stop.
+    pub(crate) async fn stop(&mut self, _t: StopToken) {
+        match self {
+            Scheduler::Stopped => {
+                panic!("WARN: already stopped");
+            }
+            Scheduler::Running {
+                inbox_handle,
+                mvbox_handle,
+                sentbox_handle,
+                smtp_handle,
+                ..
+            } => {
                if let Some(handle) = inbox_handle.take() {
                    handle.await;
                }
@@ -611,15 +540,8 @@ impl Scheduler {
                if let Some(handle) = smtp_handle.take() {
                    handle.await;
                }
-                if let Some(handle) = ephemeral_handle.take() {
-                    handle.cancel().await;
-                }
-                if let Some(handle) = location_handle.take() {
-                    handle.cancel().await;
-                }

                *self = Scheduler::Stopped;
-                Ok(())
            }
        }
    }
@@ -633,6 +555,8 @@ impl Scheduler {
 /// Connection state logic shared between imap and smtp connections.
 #[derive(Debug)]
 struct ConnectionState {
+    /// Channel to notify that shutdown has completed.
+    shutdown_receiver: Receiver<()>,
    /// Channel to interrupt the whole connection.
    stop_sender: Sender<()>,
    /// Channel to interrupt idle.
@@ -643,13 +567,14 @@ struct ConnectionState {

 impl ConnectionState {
    /// Shutdown this connection completely.
-    async fn stop(&self) -> Result<()> {
+    async fn stop(&self) {
        // Trigger shutdown of the run loop.
        self.stop_sender
            .send(())
            .await
-            .context("failed to stop, missing receiver")?;
-        Ok(())
+            .expect("stop, missing receiver");
+        // Wait for a notification that the run loop has been shutdown.
+        self.shutdown_receiver.recv().await.ok();
    }

    async fn interrupt(&self, info: InterruptInfo) {
@@ -666,15 +591,18 @@ pub(crate) struct SmtpConnectionState {
 impl SmtpConnectionState {
    fn new() -> (Self, SmtpConnectionHandlers) {
        let (stop_sender, stop_receiver) = channel::bounded(1);
+        let (shutdown_sender, shutdown_receiver) = channel::bounded(1);
        let (idle_interrupt_sender, idle_interrupt_receiver) = channel::bounded(1);

        let handlers = SmtpConnectionHandlers {
            connection: Smtp::new(),
            stop_receiver,
+            shutdown_sender,
            idle_interrupt_receiver,
        };

        let state = ConnectionState {
+            shutdown_receiver,
            stop_sender,
            idle_interrupt_sender,
            connectivity: handlers.connection.connectivity.clone(),
@@ -691,15 +619,15 @@ impl SmtpConnectionState {
    }

    /// Shutdown this connection completely.
-    async fn stop(&self) -> Result<()> {
-        self.state.stop().await?;
-        Ok(())
+    async fn stop(&self) {
+        self.state.stop().await;
    }
 }

 struct SmtpConnectionHandlers {
    connection: Smtp,
    stop_receiver: Receiver<()>,
+    shutdown_sender: Sender<()>,
    idle_interrupt_receiver: Receiver<InterruptInfo>,
 }

@@ -712,14 +640,17 @@ impl ImapConnectionState {
    /// Construct a new connection.
    async fn new(context: &Context) -> Result<(Self, ImapConnectionHandlers)> {
        let (stop_sender, stop_receiver) = channel::bounded(1);
+        let (shutdown_sender, shutdown_receiver) = channel::bounded(1);
        let (idle_interrupt_sender, idle_interrupt_receiver) = channel::bounded(1);

        let handlers = ImapConnectionHandlers {
            connection: Imap::new_configured(context, idle_interrupt_receiver).await?,
            stop_receiver,
+            shutdown_sender,
        };

        let state = ConnectionState {
+            shutdown_receiver,
            stop_sender,
            idle_interrupt_sender,
            connectivity: handlers.connection.connectivity.clone(),
@@ -736,9 +667,8 @@ impl ImapConnectionState {
    }

    /// Shutdown this connection completely.
-    async fn stop(&self) -> Result<()> {
-        self.state.stop().await?;
-        Ok(())
+    async fn stop(&self) {
+        self.state.stop().await;
    }
 }

@@ -746,15 +676,20 @@ impl ImapConnectionState {
 struct ImapConnectionHandlers {
    connection: Imap,
    stop_receiver: Receiver<()>,
+    shutdown_sender: Sender<()>,
 }

 #[derive(Default, Debug)]
 pub struct InterruptInfo {
    pub probe_network: bool,
+    pub msg_id: Option<MsgId>,
 }

 impl InterruptInfo {
-    pub fn new(probe_network: bool) -> Self {
-        Self { probe_network }
+    pub fn new(probe_network: bool, msg_id: Option<MsgId>) -> Self {
+        Self {
+            probe_network,
+            msg_id,
+        }
    }
 }
--- a/src/scheduler/connectivity.rs
+++ b/src/scheduler/connectivity.rs
@@ -5,7 +5,6 @@ use async_std::sync::{Mutex, RwLockReadGuard};

 use crate::dc_tools::time;
 use crate::events::EventType;
-use crate::imap::scan_folders::get_watched_folder_configs;
 use crate::quota::{
    QUOTA_ERROR_THRESHOLD_PERCENTAGE, QUOTA_MAX_AGE_SECONDS, QUOTA_WARN_THRESHOLD_PERCENTAGE,
 };
@@ -304,7 +303,7 @@ impl Context {
            <html>
            <head>
                <meta charset="UTF-8" />
-                <meta name="viewport" content="initial-scale=1.0; user-scalable=no" />
+                <meta name="viewport" content="initial-scale=1.0" />
                <style>
                    ul {
                        list-style-type: none;
@@ -363,14 +362,17 @@ impl Context {
                [
                    (
                        Config::ConfiguredInboxFolder,
+                        Config::InboxWatch,
                        inbox.state.connectivity.clone(),
                    ),
                    (
                        Config::ConfiguredMvboxFolder,
+                        Config::MvboxWatch,
                        mvbox.state.connectivity.clone(),
                    ),
                    (
                        Config::ConfiguredSentboxFolder,
+                        Config::SentboxWatch,
                        sentbox.state.connectivity.clone(),
                    ),
                ],
@@ -389,12 +391,12 @@ impl Context {
        //                               - "Sent": Connected
        // =============================================================================================

-        let watched_folders = get_watched_folder_configs(self).await?;
        ret += &format!("<h3>{}</h3><ul>", stock_str::incoming_messages(self).await);
-        for (folder, state) in &folders_states {
-            let mut folder_added = false;
+        for (folder, watch, state) in &folders_states {
+            let w = self.get_config(*watch).await.ok_or_log(self);

-            if watched_folders.contains(folder) {
+            let mut folder_added = false;
+            if w.flatten() == Some("1".to_string()) {
                let f = self.get_config(*folder).await.ok_or_log(self).flatten();

                if let Some(foldername) = f {
@@ -449,7 +451,13 @@ impl Context {
        //                                [======67%=====       ]
        // =============================================================================================

-        let domain = dc_tools::EmailAddress::new(&self.get_primary_self_addr().await?)?.domain;
+        let domain = dc_tools::EmailAddress::new(
+            &self
+                .get_config(Config::ConfiguredAddr)
+                .await?
+                .unwrap_or_default(),
+        )?
+        .domain;
        ret += &format!(
            "<h3>{}</h3><ul>",
            stock_str::storage_on_domain(self, domain).await
@@ -538,7 +546,7 @@ impl Context {
                self.schedule_quota_update().await?;
            }
        } else {
-            ret += &format!("<li>{}</li>", stock_str::not_connected(self).await);
+            ret += &format!("<li>{}</li>", stock_str::one_moment(self).await);
            self.schedule_quota_update().await?;
        }
        ret += "</ul>";
--- a/src/securejoin.rs
+++ b/src/securejoin.rs
@@ -3,20 +3,21 @@
 use std::convert::TryFrom;

 use anyhow::{bail, Context as _, Error, Result};
+use async_std::sync::Mutex;
 use percent_encoding::{utf8_percent_encode, AsciiSet, NON_ALPHANUMERIC};

 use crate::aheader::EncryptPreference;
-use crate::chat::{self, Chat, ChatId, ChatIdBlocked};
+use crate::chat::{self, is_contact_in_chat, Chat, ChatId, ChatIdBlocked, ProtectionStatus};
 use crate::config::Config;
-use crate::constants::Blocked;
-use crate::contact::{Contact, ContactId, Origin, VerifiedStatus};
+use crate::constants::{Blocked, Chattype, Viewtype, DC_CONTACT_ID_LAST_SPECIAL};
+use crate::contact::{Contact, Origin, VerifiedStatus};
 use crate::context::Context;
 use crate::dc_tools::time;
 use crate::e2ee::ensure_secret_key_exists;
 use crate::events::EventType;
 use crate::headerdef::HeaderDef;
 use crate::key::{DcKey, Fingerprint, SignedPublicKey};
-use crate::message::{Message, Viewtype};
+use crate::message::Message;
 use crate::mimeparser::{MimeMessage, SystemMessage};
 use crate::param::Param;
 use crate::peerstate::{Peerstate, PeerstateKeyType, PeerstateVerifiedStatus, ToSave};
@@ -24,16 +25,28 @@ use crate::qr::check_qr;
 use crate::stock_str;
 use crate::token;

-mod bob;
 mod bobstate;
 mod qrinvite;

 use crate::token::Namespace;
-use bobstate::BobState;
+use bobstate::{BobHandshakeStage, BobState, BobStateHandle};
 use qrinvite::QrInvite;

 pub const NON_ALPHANUMERIC_WITHOUT_DOT: &AsciiSet = &NON_ALPHANUMERIC.remove(b'.');

+macro_rules! joiner_progress {
+    ($context:tt, $contact_id:expr, $progress:expr) => {
+        assert!(
+            $progress >= 0 && $progress <= 1000,
+            "value in range 0..1000 expected with: 0=error, 1..999=progress, 1000=success"
+        );
+        $context.emit_event($crate::events::EventType::SecurejoinJoinerProgress {
+            contact_id: $contact_id,
+            progress: $progress,
+        });
+    };
+}
+
 macro_rules! inviter_progress {
    ($context:tt, $contact_id:expr, $progress:expr) => {
        assert!(
@@ -47,6 +60,100 @@ macro_rules! inviter_progress {
    };
 }

+/// State for setup-contact/secure-join protocol joiner's side, aka Bob's side.
+///
+/// The setup-contact protocol needs to carry state for both the inviter (Alice) and the
+/// joiner/invitee (Bob).  For Alice this state is minimal and in the `tokens` table in the
+/// database.  For Bob this state is only carried live on the [`Context`] in this struct.
+#[derive(Debug, Default)]
+pub(crate) struct Bob {
+    inner: Mutex<Option<BobState>>,
+}
+
+/// Return value for [`Bob::start_protocol`].
+///
+/// This indicates which protocol variant was started and provides the required information
+/// about it.
+enum StartedProtocolVariant {
+    /// The setup-contact protocol, to verify a contact.
+    SetupContact,
+    /// The secure-join protocol, to join a group.
+    SecureJoin {
+        group_id: String,
+        group_name: String,
+    },
+}
+
+impl Bob {
+    /// Starts the securejoin protocol with the QR `invite`.
+    ///
+    /// This will try to start the securejoin protocol for the given QR `invite`.  If it
+    /// succeeded the protocol state will be tracked in `self`.
+    ///
+    /// This function takes care of starting the "ongoing" mechanism if required and
+    /// handling errors while starting the protocol.
+    ///
+    /// # Returns
+    ///
+    /// If the started protocol is joining a group the returned struct contains information
+    /// about the group and ongoing process.
+    async fn start_protocol(
+        &self,
+        context: &Context,
+        invite: QrInvite,
+    ) -> Result<StartedProtocolVariant, JoinError> {
+        let mut guard = self.inner.lock().await;
+        if guard.is_some() {
+            warn!(context, "The new securejoin will replace the ongoing one.");
+            *guard = None;
+        }
+        let variant = match invite {
+            QrInvite::Group {
+                ref grpid,
+                ref name,
+                ..
+            } => StartedProtocolVariant::SecureJoin {
+                group_id: grpid.clone(),
+                group_name: name.clone(),
+            },
+            _ => StartedProtocolVariant::SetupContact,
+        };
+        match BobState::start_protocol(context, invite).await {
+            Ok((state, stage)) => {
+                if matches!(stage, BobHandshakeStage::RequestWithAuthSent) {
+                    joiner_progress!(context, state.invite().contact_id(), 400);
+                }
+                *guard = Some(state);
+                Ok(variant)
+            }
+            Err(err) => {
+                if let StartedProtocolVariant::SecureJoin { .. } = variant {
+                    context.free_ongoing().await;
+                }
+                Err(err)
+            }
+        }
+    }
+
+    /// Returns a handle to the [`BobState`] of the handshake.
+    ///
+    /// If there currently isn't a handshake running this will return `None`.  Otherwise
+    /// this will return a handle to the current [`BobState`].  This handle allows
+    /// processing an incoming message and allows terminating the handshake.
+    ///
+    /// The handle contains an exclusive lock, which is held until the handle is dropped.
+    /// This guarantees all state and state changes are correct and allows safely
+    /// terminating the handshake without worrying about concurrency.
+    async fn state(&self, context: &Context) -> Option<BobStateHandle<'_>> {
+        let guard = self.inner.lock().await;
+        let ret = BobStateHandle::from_guard(guard);
+        if ret.is_none() {
+            info!(context, "No active BobState found for securejoin handshake");
+        }
+        ret
+    }
+}
+
 /// Generates a Secure Join QR code.
 ///
 /// With `group` set to `None` this generates a setup-contact QR code, with `group` set to a
@@ -66,7 +173,19 @@ pub async fn dc_get_securejoin_qr(context: &Context, group: Option<ChatId>) -> R
        .is_none();
    let invitenumber = token::lookup_or_new(context, Namespace::InviteNumber, group).await;
    let auth = token::lookup_or_new(context, Namespace::Auth, group).await;
-    let self_addr = context.get_primary_self_addr().await?;
+    let self_addr = match context.get_config(Config::ConfiguredAddr).await {
+        Ok(Some(addr)) => addr,
+        Ok(None) => {
+            bail!("Not configured, cannot generate QR code.");
+        }
+        Err(err) => {
+            bail!(
+                "Unable to retrieve configuration, cannot generate QR code: {:?}",
+                err
+            );
+        }
+    };
+
    let self_name = context
        .get_config(Config::Displayname)
        .await?
@@ -87,12 +206,6 @@ pub async fn dc_get_securejoin_qr(context: &Context, group: Option<ChatId>) -> R
    let qr = if let Some(group) = group {
        // parameters used: a=g=x=i=s=
        let chat = Chat::load_from_db(context, group).await?;
-        if chat.grpid.is_empty() {
-            bail!(
-                "can't generate securejoin QR code for ad-hoc group {}",
-                group
-            );
-        }
        let group_name = chat.get_name();
        let group_name_urlencoded = utf8_percent_encode(group_name, NON_ALPHANUMERIC).to_string();
        if sync_token {
@@ -167,7 +280,7 @@ pub enum JoinError {
 pub async fn dc_join_securejoin(context: &Context, qr: &str) -> Result<ChatId, JoinError> {
    securejoin(context, qr).await.map_err(|err| {
        warn!(context, "Fatal joiner error: {:#}", err);
-        // The user just scanned this QR code so has context on what failed.
+        // This is a modal operation, the user has context on what failed.
        error!(context, "QR process failed");
        err
    })
@@ -184,7 +297,46 @@ async fn securejoin(context: &Context, qr: &str) -> Result<ChatId, JoinError> {

    let invite = QrInvite::try_from(qr_scan)?;

-    bob::start_protocol(context, invite).await
+    match context.bob.start_protocol(context, invite.clone()).await? {
+        StartedProtocolVariant::SetupContact => {
+            // for a one-to-one-chat, the chat is already known, return the chat-id,
+            // the verification runs in background
+            let chat_id = ChatId::create_for_contact(context, invite.contact_id())
+                .await
+                .map_err(JoinError::UnknownContact)?;
+            Ok(chat_id)
+        }
+        StartedProtocolVariant::SecureJoin {
+            group_id,
+            group_name,
+        } => {
+            // for a group-join, also create the chat soon and let the verification run in background.
+            // however, the group will become usable only when the protocol has finished.
+            let contact_id = invite.contact_id();
+            let chat_id = if let Some((chat_id, _protected, _blocked)) =
+                chat::get_chat_id_by_grpid(context, &group_id).await?
+            {
+                chat_id.unblock(context).await?;
+                chat_id
+            } else {
+                ChatId::create_multiuser_record(
+                    context,
+                    Chattype::Group,
+                    group_id,
+                    group_name,
+                    Blocked::Not,
+                    ProtectionStatus::Unprotected, // protection is added later as needed
+                )
+                .await?
+            };
+            if !is_contact_in_chat(context, chat_id, contact_id).await? {
+                chat::add_to_chat_contacts_table(context, chat_id, contact_id).await?;
+            }
+            let msg = stock_str::secure_join_started(context, contact_id).await;
+            chat::add_info_msg(context, chat_id, msg, time()).await?;
+            Ok(chat_id)
+        }
+    }
 }

 /// Error when failing to send a protocol handshake message.
@@ -199,7 +351,7 @@ pub struct SendMsgError(#[from] anyhow::Error);
 /// Bob's handshake messages are sent in `BobState::send_handshake_message()`.
 async fn send_alice_handshake_msg(
    context: &Context,
-    contact_id: ContactId,
+    contact_id: u32,
    step: &str,
    fingerprint: Option<Fingerprint>,
 ) -> Result<(), SendMsgError> {
@@ -227,7 +379,7 @@ async fn send_alice_handshake_msg(
 }

 /// Get an unblocked chat that can be used for info messages.
-async fn info_chat_id(context: &Context, contact_id: ContactId) -> Result<ChatId> {
+async fn info_chat_id(context: &Context, contact_id: u32) -> Result<ChatId> {
    let chat_id_blocked = ChatIdBlocked::get_for_contact(context, contact_id, Blocked::Not).await?;
    Ok(chat_id_blocked.id)
 }
@@ -235,7 +387,7 @@ async fn info_chat_id(context: &Context, contact_id: ContactId) -> Result<ChatId
 async fn fingerprint_equals_sender(
    context: &Context,
    fingerprint: &Fingerprint,
-    contact_id: ContactId,
+    contact_id: u32,
 ) -> Result<bool, Error> {
    let contact = Contact::load_from_db(context, contact_id).await?;
    let peerstate = match Peerstate::from_addr(context, contact.get_addr()).await {
@@ -289,8 +441,9 @@ pub(crate) enum HandshakeMessage {

 /// Handle incoming secure-join handshake.
 ///
-/// This function will update the securejoin state in the database as the protocol
-/// progresses.
+/// This function will update the securejoin state in [`InnerContext::bob`] and also
+/// terminate the ongoing process using [`Context::stop_ongoing`] as required by the
+/// protocol.
 ///
 /// A message which results in [`Err`] will be hidden from the user but not deleted, it may
 /// be a valid message for something else we are not aware off.  E.g. it could be part of a
@@ -298,13 +451,15 @@ pub(crate) enum HandshakeMessage {
 ///
 /// When `handle_securejoin_handshake()` is called, the message is not yet filed in the
 /// database; this is done by `receive_imf()` later on as needed.
+///
+/// [`InnerContext::bob`]: crate::context::InnerContext::bob
 #[allow(clippy::indexing_slicing)]
 pub(crate) async fn handle_securejoin_handshake(
    context: &Context,
    mime_message: &MimeMessage,
-    contact_id: ContactId,
+    contact_id: u32,
 ) -> Result<HandshakeMessage> {
-    if contact_id.is_special() {
+    if contact_id <= DC_CONTACT_ID_LAST_SPECIAL {
        return Err(Error::msg("Can not be called with special contact ID"));
    }
    let step = mime_message
@@ -365,7 +520,38 @@ pub(crate) async fn handle_securejoin_handshake(
            ====             Bob - the joiner's side             =====
            ====   Step 4 in "Setup verified contact" protocol   =====
            ========================================================*/
-            bob::handle_auth_required(context, mime_message).await
+            match context.bob.state(context).await {
+                Some(mut bobstate) => match bobstate.handle_message(context, mime_message).await {
+                    Some(BobHandshakeStage::Terminated(why)) => {
+                        could_not_establish_secure_connection(
+                            context,
+                            contact_id,
+                            bobstate.chat_id(context).await?,
+                            why,
+                        )
+                        .await?;
+                        Ok(HandshakeMessage::Done)
+                    }
+                    Some(_stage) => {
+                        if join_vg {
+                            // the message reads "Alice replied, waiting for being added to the group…";
+                            // show it only on secure-join and not on setup-contact therefore.
+                            let msg = stock_str::secure_join_replies(context, contact_id).await;
+                            chat::add_info_msg(
+                                context,
+                                bobstate.chat_id(context).await?,
+                                msg,
+                                time(),
+                            )
+                            .await?;
+                        }
+                        joiner_progress!(context, bobstate.invite().contact_id(), 400);
+                        Ok(HandshakeMessage::Done)
+                    }
+                    None => Ok(HandshakeMessage::Ignore),
+                },
+                None => Ok(HandshakeMessage::Ignore),
+            }
        }
        "vg-request-with-auth" | "vc-request-with-auth" => {
            /*==========================================================
@@ -496,14 +682,44 @@ pub(crate) async fn handle_securejoin_handshake(
            ====             Bob - the joiner's side             ====
            ====   Step 7 in "Setup verified contact" protocol   ====
            =======================================================*/
-            match BobState::from_db(&context.sql).await? {
-                Some(bobstate) => {
-                    bob::handle_contact_confirm(context, bobstate, mime_message).await
-                }
-                None => match join_vg {
-                    true => Ok(HandshakeMessage::Propagate),
-                    false => Ok(HandshakeMessage::Ignore),
+            info!(context, "matched vc-contact-confirm step");
+            let retval = if join_vg {
+                HandshakeMessage::Propagate
+            } else {
+                HandshakeMessage::Ignore
+            };
+            match context.bob.state(context).await {
+                Some(mut bobstate) => match bobstate.handle_message(context, mime_message).await {
+                    Some(BobHandshakeStage::Terminated(why)) => {
+                        could_not_establish_secure_connection(
+                            context,
+                            contact_id,
+                            bobstate.chat_id(context).await?,
+                            why,
+                        )
+                        .await?;
+                        Ok(HandshakeMessage::Done)
+                    }
+                    Some(BobHandshakeStage::Completed) => {
+                        // Can only be BobHandshakeStage::Completed
+                        secure_connection_established(
+                            context,
+                            contact_id,
+                            bobstate.chat_id(context).await?,
+                        )
+                        .await?;
+                        Ok(retval)
+                    }
+                    Some(_) => {
+                        warn!(
+                            context,
+                            "Impossible state returned from handling handshake message"
+                        );
+                        Ok(retval)
+                    }
+                    None => Ok(retval),
                },
+                None => Ok(retval),
            }
        }
        "vg-member-added-received" | "vc-contact-confirm-received" => {
@@ -525,7 +741,7 @@ pub(crate) async fn handle_securejoin_handshake(
                        .get_header(HeaderDef::SecureJoinGroup)
                        .map(|s| s.as_str())
                        .unwrap_or_else(|| "");
-                    if let Err(err) = chat::get_chat_id_by_grpid(context, field_grpid).await {
+                    if let Err(err) = chat::get_chat_id_by_grpid(context, &field_grpid).await {
                        warn!(context, "Failed to lookup chat_id from grpid: {}", err);
                        return Err(
                            err.context(format!("Chat for group {} not found", &field_grpid))
@@ -565,9 +781,9 @@ pub(crate) async fn handle_securejoin_handshake(
 pub(crate) async fn observe_securejoin_on_other_device(
    context: &Context,
    mime_message: &MimeMessage,
-    contact_id: ContactId,
+    contact_id: u32,
 ) -> Result<HandshakeMessage> {
-    if contact_id.is_special() {
+    if contact_id <= DC_CONTACT_ID_LAST_SPECIAL {
        return Err(Error::msg("Can not be called with special contact ID"));
    }
    let step = mime_message
@@ -630,24 +846,32 @@ pub(crate) async fn observe_securejoin_on_other_device(

 async fn secure_connection_established(
    context: &Context,
-    contact_id: ContactId,
+    contact_id: u32,
    chat_id: ChatId,
 ) -> Result<(), Error> {
    let contact = Contact::get_by_id(context, contact_id).await?;
-    let msg = stock_str::contact_verified(context, &contact).await;
-    chat::add_info_msg(context, chat_id, &msg, time()).await?;
+    let msg = stock_str::contact_verified(context, contact.get_name_n_addr()).await;
+    chat::add_info_msg(context, chat_id, msg, time()).await?;
    context.emit_event(EventType::ChatModified(chat_id));
    Ok(())
 }

 async fn could_not_establish_secure_connection(
    context: &Context,
-    contact_id: ContactId,
+    contact_id: u32,
    chat_id: ChatId,
    details: &str,
 ) -> Result<(), Error> {
-    let contact = Contact::get_by_id(context, contact_id).await?;
-    let msg = stock_str::contact_not_verified(context, &contact).await;
+    let contact = Contact::get_by_id(context, contact_id).await;
+    let msg = stock_str::contact_not_verified(
+        context,
+        if let Ok(ref contact) = contact {
+            contact.get_addr()
+        } else {
+            "?"
+        },
+    )
+    .await;
    chat::add_info_msg(context, chat_id, &msg, time()).await?;
    warn!(
        context,
@@ -712,44 +936,46 @@ fn encrypted_and_signed(
 mod tests {
    use super::*;

+    use async_std::prelude::*;
+
    use crate::chat;
    use crate::chat::ProtectionStatus;
    use crate::chatlist::Chatlist;
    use crate::constants::Chattype;
-    use crate::dc_receive_imf::dc_receive_imf;
+    use crate::events::Event;
    use crate::peerstate::Peerstate;
-    use crate::test_utils::{TestContext, TestContextManager};
+    use crate::test_utils::TestContext;
+    use std::time::Duration;

    #[async_std::test]
-    async fn test_setup_contact() {
-        let mut tcm = TestContextManager::new().await;
-        let alice = tcm.alice().await;
-        let bob = tcm.bob().await;
-        assert_eq!(
-            Chatlist::try_load(&alice, 0, None, None)
-                .await
-                .unwrap()
-                .len(),
-            0
-        );
-        assert_eq!(
-            Chatlist::try_load(&bob, 0, None, None).await.unwrap().len(),
-            0
-        );
+    async fn test_setup_contact() -> Result<()> {
+        let alice = TestContext::new_alice().await;
+        let bob = TestContext::new_bob().await;
+        assert_eq!(Chatlist::try_load(&alice, 0, None, None).await?.len(), 0);
+        assert_eq!(Chatlist::try_load(&bob, 0, None, None).await?.len(), 0);
+
+        // Setup JoinerProgress sinks.
+        let (joiner_progress_tx, joiner_progress_rx) = async_std::channel::bounded(100);
+        bob.add_event_sink(move |event: Event| {
+            let joiner_progress_tx = joiner_progress_tx.clone();
+            async move {
+                if let EventType::SecurejoinJoinerProgress { .. } = event.typ {
+                    joiner_progress_tx.try_send(event).unwrap();
+                }
+            }
+        })
+        .await;

        // Step 1: Generate QR-code, ChatId(0) indicates setup-contact
-        let qr = dc_get_securejoin_qr(&alice.ctx, None).await.unwrap();
+        let qr = dc_get_securejoin_qr(&alice.ctx, None).await?;

        // Step 2: Bob scans QR-code, sends vc-request
-        dc_join_securejoin(&bob.ctx, &qr).await.unwrap();
-        assert_eq!(
-            Chatlist::try_load(&bob, 0, None, None).await.unwrap().len(),
-            1
-        );
+        dc_join_securejoin(&bob.ctx, &qr).await?;
+        assert_eq!(Chatlist::try_load(&bob, 0, None, None).await?.len(), 1);

        let sent = bob.pop_sent_msg().await;
        assert!(!bob.ctx.has_ongoing().await);
-        assert_eq!(sent.recipient(), "alice@example.org".parse().unwrap());
+        assert_eq!(sent.recipient(), "alice@example.com".parse().unwrap());
        let msg = alice.parse_msg(&sent).await;
        assert!(!msg.was_encrypted());
        assert_eq!(msg.get_header(HeaderDef::SecureJoin).unwrap(), "vc-request");
@@ -757,13 +983,7 @@ mod tests {

        // Step 3: Alice receives vc-request, sends vc-auth-required
        alice.recv_msg(&sent).await;
-        assert_eq!(
-            Chatlist::try_load(&alice, 0, None, None)
-                .await
-                .unwrap()
-                .len(),
-            1
-        );
+        assert_eq!(Chatlist::try_load(&alice, 0, None, None).await?.len(), 1);

        let sent = alice.pop_sent_msg().await;
        let msg = bob.parse_msg(&sent).await;
@@ -777,24 +997,28 @@ mod tests {
        bob.recv_msg(&sent).await;

        // Check Bob emitted the JoinerProgress event.
-        let event = bob
-            .evtracker
-            .get_matching(|evt| matches!(evt, EventType::SecurejoinJoinerProgress { .. }))
-            .await;
-        match event {
-            EventType::SecurejoinJoinerProgress {
-                contact_id,
-                progress,
-            } => {
-                let alice_contact_id =
-                    Contact::lookup_id_by_addr(&bob.ctx, "alice@example.org", Origin::Unknown)
-                        .await
-                        .expect("Error looking up contact")
-                        .expect("Contact not found");
-                assert_eq!(contact_id, alice_contact_id);
-                assert_eq!(progress, 400);
+        {
+            let evt = joiner_progress_rx
+                .recv()
+                .timeout(Duration::from_secs(10))
+                .await
+                .expect("timeout waiting for JoinerProgress event")
+                .expect("missing JoinerProgress event");
+            match evt.typ {
+                EventType::SecurejoinJoinerProgress {
+                    contact_id,
+                    progress,
+                } => {
+                    let alice_contact_id =
+                        Contact::lookup_id_by_addr(&bob.ctx, "alice@example.com", Origin::Unknown)
+                            .await
+                            .expect("Error looking up contact")
+                            .expect("Contact not found");
+                    assert_eq!(contact_id, alice_contact_id);
+                    assert_eq!(progress, 400);
+                }
+                _ => panic!("Wrong event type"),
            }
-            _ => unreachable!(),
        }

        // Check Bob sent the right message.
@@ -825,30 +1049,21 @@ mod tests {
            .await
            .unwrap();
        assert_eq!(
-            contact_bob.is_verified(&alice.ctx).await.unwrap(),
+            contact_bob.is_verified(&alice.ctx).await?,
            VerifiedStatus::Unverified
        );

        // Step 5+6: Alice receives vc-request-with-auth, sends vc-contact-confirm
        alice.recv_msg(&sent).await;
        assert_eq!(
-            contact_bob.is_verified(&alice.ctx).await.unwrap(),
+            contact_bob.is_verified(&alice.ctx).await?,
            VerifiedStatus::BidirectVerified
        );

        // exactly one one-to-one chat should be visible for both now
        // (check this before calling alice.create_chat() explicitly below)
-        assert_eq!(
-            Chatlist::try_load(&alice, 0, None, None)
-                .await
-                .unwrap()
-                .len(),
-            1
-        );
-        assert_eq!(
-            Chatlist::try_load(&bob, 0, None, None).await.unwrap().len(),
-            1
-        );
+        assert_eq!(Chatlist::try_load(&alice, 0, None, None).await?.len(), 1);
+        assert_eq!(Chatlist::try_load(&bob, 0, None, None).await?.len(), 1);

        // Check Alice got the verified message in her 1:1 chat.
        {
@@ -880,7 +1095,7 @@ mod tests {

        // Bob should not yet have Alice verified
        let contact_alice_id =
-            Contact::lookup_id_by_addr(&bob.ctx, "alice@example.org", Origin::Unknown)
+            Contact::lookup_id_by_addr(&bob.ctx, "alice@example.com", Origin::Unknown)
                .await
                .expect("Error looking up contact")
                .expect("Contact not found");
@@ -888,14 +1103,14 @@ mod tests {
            .await
            .unwrap();
        assert_eq!(
-            contact_bob.is_verified(&bob.ctx).await.unwrap(),
+            contact_bob.is_verified(&bob.ctx).await?,
            VerifiedStatus::Unverified
        );

        // Step 7: Bob receives vc-contact-confirm, sends vc-contact-confirm-received
        bob.recv_msg(&sent).await;
        assert_eq!(
-            contact_alice.is_verified(&bob.ctx).await.unwrap(),
+            contact_alice.is_verified(&bob.ctx).await?,
            VerifiedStatus::BidirectVerified
        );

@@ -915,7 +1130,7 @@ mod tests {
            let msg = Message::load_from_db(&bob.ctx, msg_id).await.unwrap();
            assert!(msg.is_info());
            let text = msg.get_text().unwrap();
-            assert!(text.contains("alice@example.org verified"));
+            assert!(text.contains("alice@example.com verified"));
        }

        // Check Bob sent the final message
@@ -926,6 +1141,7 @@ mod tests {
            msg.get_header(HeaderDef::SecureJoin).unwrap(),
            "vc-contact-confirm-received"
        );
+        Ok(())
    }

    #[async_std::test]
@@ -937,14 +1153,25 @@ mod tests {

    #[async_std::test]
    async fn test_setup_contact_bob_knows_alice() -> Result<()> {
-        let mut tcm = TestContextManager::new().await;
-        let alice = tcm.alice().await;
-        let bob = tcm.bob().await;
+        let alice = TestContext::new_alice().await;
+        let bob = TestContext::new_bob().await;
+
+        // Setup JoinerProgress sinks.
+        let (joiner_progress_tx, joiner_progress_rx) = async_std::channel::bounded(100);
+        bob.add_event_sink(move |event: Event| {
+            let joiner_progress_tx = joiner_progress_tx.clone();
+            async move {
+                if let EventType::SecurejoinJoinerProgress { .. } = event.typ {
+                    joiner_progress_tx.try_send(event).unwrap();
+                }
+            }
+        })
+        .await;

        // Ensure Bob knows Alice_FP
        let alice_pubkey = SignedPublicKey::load_self(&alice.ctx).await?;
        let peerstate = Peerstate {
-            addr: "alice@example.org".into(),
+            addr: "alice@example.com".into(),
            last_seen: 10,
            last_seen_autocrypt: 10,
            prefer_encrypt: EncryptPreference::Mutual,
@@ -967,25 +1194,30 @@ mod tests {
        dc_join_securejoin(&bob.ctx, &qr).await.unwrap();

        // Check Bob emitted the JoinerProgress event.
-        let event = bob
-            .evtracker
-            .get_matching(|evt| matches!(evt, EventType::SecurejoinJoinerProgress { .. }))
-            .await;
-        match event {
-            EventType::SecurejoinJoinerProgress {
-                contact_id,
-                progress,
-            } => {
-                let alice_contact_id =
-                    Contact::lookup_id_by_addr(&bob.ctx, "alice@example.org", Origin::Unknown)
-                        .await
-                        .expect("Error looking up contact")
-                        .expect("Contact not found");
-                assert_eq!(contact_id, alice_contact_id);
-                assert_eq!(progress, 400);
+        {
+            let evt = joiner_progress_rx
+                .recv()
+                .timeout(Duration::from_secs(10))
+                .await
+                .expect("timeout waiting for JoinerProgress event")
+                .expect("missing JoinerProgress event");
+            match evt.typ {
+                EventType::SecurejoinJoinerProgress {
+                    contact_id,
+                    progress,
+                } => {
+                    let alice_contact_id =
+                        Contact::lookup_id_by_addr(&bob.ctx, "alice@example.com", Origin::Unknown)
+                            .await
+                            .expect("Error looking up contact")
+                            .expect("Contact not found");
+                    assert_eq!(contact_id, alice_contact_id);
+                    assert_eq!(progress, 400);
+                }
+                _ => panic!("Wrong event type"),
            }
-            _ => unreachable!(),
        }
+        assert!(!bob.ctx.has_ongoing().await);

        // Check Bob sent the right handshake message.
        let sent = bob.pop_sent_msg().await;
@@ -1033,7 +1265,7 @@ mod tests {

        // Bob should not yet have Alice verified
        let contact_alice_id =
-            Contact::lookup_id_by_addr(&bob.ctx, "alice@example.org", Origin::Unknown)
+            Contact::lookup_id_by_addr(&bob.ctx, "alice@example.com", Origin::Unknown)
                .await
                .expect("Error looking up contact")
                .expect("Contact not found");
@@ -1062,9 +1294,8 @@ mod tests {

    #[async_std::test]
    async fn test_setup_contact_concurrent_calls() -> Result<()> {
-        let mut tcm = TestContextManager::new().await;
-        let alice = tcm.alice().await;
-        let bob = tcm.bob().await;
+        let alice = TestContext::new_alice().await;
+        let bob = TestContext::new_bob().await;

        // do a scan that is not working as claire is never responding
        let qr_stale = "OPENPGP4FPR:1234567890123456789012345678901234567890#a=claire%40foo.de&n=&i=12345678901&s=23456789012";
@@ -1086,26 +1317,35 @@ mod tests {
            .pop_sent_msg()
            .await
            .payload()
-            .contains("alice@example.org"));
+            .contains("alice@example.com"));

        Ok(())
    }

    #[async_std::test]
    async fn test_secure_join() -> Result<()> {
-        let mut tcm = TestContextManager::new().await;
-        let alice = tcm.alice().await;
-        let bob = tcm.bob().await;
-
-        // We start with empty chatlists.
+        let alice = TestContext::new_alice().await;
+        let bob = TestContext::new_bob().await;
        assert_eq!(Chatlist::try_load(&alice, 0, None, None).await?.len(), 0);
        assert_eq!(Chatlist::try_load(&bob, 0, None, None).await?.len(), 0);

-        let alice_chatid =
+        // Setup JoinerProgress sinks.
+        let (joiner_progress_tx, joiner_progress_rx) = async_std::channel::bounded(100);
+        bob.add_event_sink(move |event: Event| {
+            let joiner_progress_tx = joiner_progress_tx.clone();
+            async move {
+                if let EventType::SecurejoinJoinerProgress { .. } = event.typ {
+                    joiner_progress_tx.try_send(event).unwrap();
+                }
+            }
+        })
+        .await;
+
+        let chatid =
            chat::create_group_chat(&alice.ctx, ProtectionStatus::Protected, "the chat").await?;

        // Step 1: Generate QR-code, secure-join implied by chatid
-        let qr = dc_get_securejoin_qr(&alice.ctx, Some(alice_chatid))
+        let qr = dc_get_securejoin_qr(&alice.ctx, Some(chatid))
            .await
            .unwrap();

@@ -1114,7 +1354,7 @@ mod tests {
        assert_eq!(Chatlist::try_load(&bob, 0, None, None).await?.len(), 1);

        let sent = bob.pop_sent_msg().await;
-        assert_eq!(sent.recipient(), "alice@example.org".parse().unwrap());
+        assert_eq!(sent.recipient(), "alice@example.com".parse().unwrap());
        let msg = alice.parse_msg(&sent).await;
        assert!(!msg.was_encrypted());
        assert_eq!(msg.get_header(HeaderDef::SecureJoin).unwrap(), "vg-request");
@@ -1136,24 +1376,28 @@ mod tests {
        let sent = bob.pop_sent_msg().await;

        // Check Bob emitted the JoinerProgress event.
-        let event = bob
-            .evtracker
-            .get_matching(|evt| matches!(evt, EventType::SecurejoinJoinerProgress { .. }))
-            .await;
-        match event {
-            EventType::SecurejoinJoinerProgress {
-                contact_id,
-                progress,
-            } => {
-                let alice_contact_id =
-                    Contact::lookup_id_by_addr(&bob.ctx, "alice@example.org", Origin::Unknown)
-                        .await
-                        .expect("Error looking up contact")
-                        .expect("Contact not found");
-                assert_eq!(contact_id, alice_contact_id);
-                assert_eq!(progress, 400);
+        {
+            let evt = joiner_progress_rx
+                .recv()
+                .timeout(Duration::from_secs(10))
+                .await
+                .expect("timeout waiting for JoinerProgress event")
+                .expect("missing JoinerProgress event");
+            match evt.typ {
+                EventType::SecurejoinJoinerProgress {
+                    contact_id,
+                    progress,
+                } => {
+                    let alice_contact_id =
+                        Contact::lookup_id_by_addr(&bob.ctx, "alice@example.com", Origin::Unknown)
+                            .await
+                            .expect("Error looking up contact")
+                            .expect("Contact not found");
+                    assert_eq!(contact_id, alice_contact_id);
+                    assert_eq!(progress, 400);
+                }
+                _ => panic!("Wrong event type"),
            }
-            _ => unreachable!(),
        }

        // Check Bob sent the right handshake message.
@@ -1196,38 +1440,9 @@ mod tests {
            "vg-member-added"
        );

-        {
-            // Now Alice's chat with Bob should still be hidden, the verified message should
-            // appear in the group chat.
-
-            let chat = alice
-                .get_chat(&bob)
-                .await
-                .expect("Alice has no 1:1 chat with bob");
-            assert_eq!(
-                chat.blocked,
-                Blocked::Yes,
-                "Alice's 1:1 chat with Bob is not hidden"
-            );
-            let msg_id = chat::get_chat_msgs(&alice.ctx, alice_chatid, 0x1, None)
-                .await
-                .unwrap()
-                .into_iter()
-                .filter_map(|item| match item {
-                    chat::ChatItem::Message { msg_id } => Some(msg_id),
-                    _ => None,
-                })
-                .min()
-                .expect("No messages in Alice's group chat");
-            let msg = Message::load_from_db(&alice.ctx, msg_id).await.unwrap();
-            assert!(msg.is_info());
-            let text = msg.get_text().unwrap();
-            assert!(text.contains("bob@example.net verified"));
-        }
-
        // Bob should not yet have Alice verified
        let contact_alice_id =
-            Contact::lookup_id_by_addr(&bob.ctx, "alice@example.org", Origin::Unknown)
+            Contact::lookup_id_by_addr(&bob.ctx, "alice@example.com", Origin::Unknown)
                .await
                .expect("Error looking up contact")
                .expect("Contact not found");
@@ -1239,53 +1454,10 @@ mod tests {

        // Step 7: Bob receives vg-member-added, sends vg-member-added-received
        bob.recv_msg(&sent).await;
-        {
-            // Bob has Alice verified, message shows up in the group chat.
-            assert_eq!(
-                contact_alice.is_verified(&bob.ctx).await?,
-                VerifiedStatus::BidirectVerified
-            );
-            let chat = bob
-                .get_chat(&alice)
-                .await
-                .expect("Bob has no 1:1 chat with Alice");
-            assert_eq!(
-                chat.blocked,
-                Blocked::Yes,
-                "Bob's 1:1 chat with Alice is not hidden"
-            );
-            for item in chat::get_chat_msgs(&bob.ctx, bob_chatid, 0x1, None)
-                .await
-                .unwrap()
-            {
-                if let chat::ChatItem::Message { msg_id } = item {
-                    let msg = Message::load_from_db(&bob.ctx, msg_id).await.unwrap();
-                    let text = msg.get_text().unwrap();
-                    println!("msg {} text: {}", msg_id, text);
-                }
-            }
-            let mut msg_iter = chat::get_chat_msgs(&bob.ctx, bob_chatid, 0x1, None)
-                .await
-                .unwrap()
-                .into_iter();
-            loop {
-                match msg_iter.next() {
-                    Some(chat::ChatItem::Message { msg_id }) => {
-                        let msg = Message::load_from_db(&bob.ctx, msg_id).await.unwrap();
-                        let text = msg.get_text().unwrap();
-                        match text.contains("alice@example.org verified") {
-                            true => {
-                                assert!(msg.is_info());
-                                break;
-                            }
-                            false => continue,
-                        }
-                    }
-                    Some(_) => continue,
-                    None => panic!("Verified message not found in Bob's group chat"),
-                }
-            }
-        }
+        assert_eq!(
+            contact_alice.is_verified(&bob.ctx).await?,
+            VerifiedStatus::BidirectVerified
+        );

        let sent = bob.pop_sent_msg().await;
        let msg = alice.parse_msg(&sent).await;
@@ -1315,25 +1487,4 @@ mod tests {

        Ok(())
    }
-
-    #[async_std::test]
-    async fn test_adhoc_group_no_qr() -> Result<()> {
-        let alice = TestContext::new_alice().await;
-        alice.set_config(Config::ShowEmails, Some("2")).await?;
-
-        let mime = br#"Subject: First thread
-Message-ID: first@example.org
-To: Alice <alice@example.org>, Bob <bob@example.net>
-From: Claire <claire@example.org>
-Content-Type: text/plain; charset=utf-8; format=flowed; delsp=no
-
-First thread."#;
-
-        dc_receive_imf(&alice, mime, false).await?;
-        let msg = alice.get_last_msg().await;
-        let chat_id = msg.chat_id;
-
-        assert!(dc_get_securejoin_qr(&alice, Some(chat_id)).await.is_err());
-        Ok(())
-    }
 }
--- a/src/securejoin/bob.rs
+++ b/src/securejoin/bob.rs
@@ -1,257 +0,0 @@
-//! Bob's side of SecureJoin handling.
-//!
-//! This are some helper functions around [`BobState`] which augment the state changes with
-//! the required user interactions.
-
-use anyhow::Result;
-
-use crate::chat::{is_contact_in_chat, ChatId, ProtectionStatus};
-use crate::constants::{Blocked, Chattype};
-use crate::contact::Contact;
-use crate::context::Context;
-use crate::dc_tools::time;
-use crate::events::EventType;
-use crate::mimeparser::MimeMessage;
-use crate::{chat, stock_str};
-
-use super::bobstate::{BobHandshakeStage, BobState};
-use super::qrinvite::QrInvite;
-use super::{HandshakeMessage, JoinError};
-
-/// Starts the securejoin protocol with the QR `invite`.
-///
-/// This will try to start the securejoin protocol for the given QR `invite`.  If it
-/// succeeded the protocol state will be tracked in `self`.
-///
-/// This function takes care of handling multiple concurrent joins and handling errors while
-/// starting the protocol.
-///
-/// # Returns
-///
-/// The [`ChatId`] of the created chat is returned, for a SetupContact QR this is the 1:1
-/// chat with Alice, for a SecureJoin QR this is the group chat.
-pub(super) async fn start_protocol(
-    context: &Context,
-    invite: QrInvite,
-) -> Result<ChatId, JoinError> {
-    // A 1:1 chat is needed to send messages to Alice.  When joining a group this chat is
-    // hidden, if a user starts sending messages in it it will be unhidden in
-    // dc_receive_imf.
-    let hidden = match invite {
-        QrInvite::Contact { .. } => Blocked::Not,
-        QrInvite::Group { .. } => Blocked::Yes,
-    };
-    let chat_id = ChatId::create_for_contact_with_blocked(context, invite.contact_id(), hidden)
-        .await
-        .map_err(JoinError::UnknownContact)?;
-
-    // Now start the protocol and initialise the state
-    let (state, stage, aborted_states) =
-        BobState::start_protocol(context, invite.clone(), chat_id).await?;
-    for state in aborted_states {
-        error!(context, "Aborting previously unfinished QR Join process.");
-        state.notify_aborted(context, "new QR scanned").await?;
-        state.emit_progress(context, JoinerProgress::Error);
-    }
-    if matches!(stage, BobHandshakeStage::RequestWithAuthSent) {
-        state.emit_progress(context, JoinerProgress::RequestWithAuthSent);
-    }
-    match invite {
-        QrInvite::Group { .. } => {
-            // For a secure-join we need to create the group and add the contact.  The group will
-            // only become usable once the protocol is finished.
-            // TODO: how does this group become usable?
-            let group_chat_id = state.joining_chat_id(context).await?;
-            if !is_contact_in_chat(context, group_chat_id, invite.contact_id()).await? {
-                chat::add_to_chat_contacts_table(context, group_chat_id, invite.contact_id())
-                    .await?;
-            }
-            let msg = stock_str::secure_join_started(context, invite.contact_id()).await;
-            chat::add_info_msg(context, group_chat_id, &msg, time()).await?;
-            Ok(group_chat_id)
-        }
-        QrInvite::Contact { .. } => {
-            // For setup-contact the BobState already ensured the 1:1 chat exists because it
-            // uses it to send the handshake messages.
-            Ok(state.alice_chat())
-        }
-    }
-}
-
-/// Handles `vc-auth-required` and `vg-auth-required` handshake messages.
-///
-/// # Bob - the joiner's side
-/// ## Step 4 in the "Setup Contact protocol"
-pub(super) async fn handle_auth_required(
-    context: &Context,
-    message: &MimeMessage,
-) -> Result<HandshakeMessage> {
-    match BobState::from_db(&context.sql).await? {
-        Some(mut bobstate) => match bobstate.handle_message(context, message).await? {
-            Some(BobHandshakeStage::Terminated(why)) => {
-                bobstate.notify_aborted(context, why).await?;
-                Ok(HandshakeMessage::Done)
-            }
-            Some(_stage) => {
-                if bobstate.is_join_group() {
-                    // The message reads "Alice replied, waiting to be added to the group…",
-                    // so only show it on secure-join and not on setup-contact.
-                    let contact_id = bobstate.invite().contact_id();
-                    let msg = stock_str::secure_join_replies(context, contact_id).await;
-                    let chat_id = bobstate.joining_chat_id(context).await?;
-                    chat::add_info_msg(context, chat_id, &msg, time()).await?;
-                }
-                bobstate.emit_progress(context, JoinerProgress::RequestWithAuthSent);
-                Ok(HandshakeMessage::Done)
-            }
-            None => Ok(HandshakeMessage::Ignore),
-        },
-        None => Ok(HandshakeMessage::Ignore),
-    }
-}
-
-/// Handles `vc-contact-confirm` and `vg-member-added` handshake messages.
-///
-/// # Bob - the joiner's side
-/// ## Step 4 in the "Setup Contact protocol"
-pub(super) async fn handle_contact_confirm(
-    context: &Context,
-    mut bobstate: BobState,
-    message: &MimeMessage,
-) -> Result<HandshakeMessage> {
-    let retval = if bobstate.is_join_group() {
-        HandshakeMessage::Propagate
-    } else {
-        HandshakeMessage::Ignore
-    };
-    match bobstate.handle_message(context, message).await? {
-        Some(BobHandshakeStage::Terminated(why)) => {
-            bobstate.notify_aborted(context, why).await?;
-            Ok(HandshakeMessage::Done)
-        }
-        Some(BobHandshakeStage::Completed) => {
-            // Note this goes to the 1:1 chat, as when joining a group we implicitly also
-            // verify both contacts (this could be a bug/security issue, see
-            // e.g. https://github.com/deltachat/deltachat-core-rust/issues/1177).
-            bobstate.notify_peer_verified(context).await?;
-            Ok(retval)
-        }
-        Some(_) => {
-            warn!(
-                context,
-                "Impossible state returned from handling handshake message"
-            );
-            Ok(retval)
-        }
-        None => Ok(retval),
-    }
-}
-
-/// Private implementations for user interactions about this [`BobState`].
-impl BobState {
-    fn is_join_group(&self) -> bool {
-        match self.invite() {
-            QrInvite::Contact { .. } => false,
-            QrInvite::Group { .. } => true,
-        }
-    }
-
-    fn emit_progress(&self, context: &Context, progress: JoinerProgress) {
-        let contact_id = self.invite().contact_id();
-        context.emit_event(EventType::SecurejoinJoinerProgress {
-            contact_id,
-            progress: progress.into(),
-        });
-    }
-
-    /// Returns the [`ChatId`] of the chat being joined.
-    ///
-    /// This is the chat in which you want to notify the user as well.
-    ///
-    /// When joining a group this is the [`ChatId`] of the group chat, when verifying a
-    /// contact this is the [`ChatId`] of the 1:1 chat.  The 1:1 chat is assumed to exist
-    /// because a [`BobState`] can not exist without, the group chat will be created if it
-    /// does not yet exist.
-    async fn joining_chat_id(&self, context: &Context) -> Result<ChatId> {
-        match self.invite() {
-            QrInvite::Contact { .. } => Ok(self.alice_chat()),
-            QrInvite::Group {
-                ref grpid,
-                ref name,
-                ..
-            } => {
-                let group_chat_id = match chat::get_chat_id_by_grpid(context, grpid).await? {
-                    Some((chat_id, _protected, _blocked)) => {
-                        chat_id.unblock(context).await?;
-                        chat_id
-                    }
-                    None => {
-                        ChatId::create_multiuser_record(
-                            context,
-                            Chattype::Group,
-                            grpid,
-                            name,
-                            Blocked::Not,
-                            ProtectionStatus::Unprotected, // protection is added later as needed
-                            None,
-                        )
-                        .await?
-                    }
-                };
-                Ok(group_chat_id)
-            }
-        }
-    }
-
-    /// Notifies the user that the SecureJoin was aborted.
-    ///
-    /// This creates an info message in the chat being joined.
-    async fn notify_aborted(&self, context: &Context, why: &str) -> Result<()> {
-        let contact = Contact::get_by_id(context, self.invite().contact_id()).await?;
-        let msg = stock_str::contact_not_verified(context, &contact).await;
-        let chat_id = self.joining_chat_id(context).await?;
-        chat::add_info_msg(context, chat_id, &msg, time()).await?;
-        warn!(
-            context,
-            "StockMessage::ContactNotVerified posted to joining chat ({})", why
-        );
-        Ok(())
-    }
-
-    /// Notifies the user that the SecureJoin peer is verified.
-    ///
-    /// This creates an info message in the chat being joined.
-    async fn notify_peer_verified(&self, context: &Context) -> Result<()> {
-        let contact = Contact::get_by_id(context, self.invite().contact_id()).await?;
-        let msg = stock_str::contact_verified(context, &contact).await;
-        let chat_id = self.joining_chat_id(context).await?;
-        chat::add_info_msg(context, chat_id, &msg, time()).await?;
-        context.emit_event(EventType::ChatModified(chat_id));
-        Ok(())
-    }
-}
-
-/// Progress updates for [`EventType::SecurejoinJoinerProgress`].
-///
-/// This has an `From<JoinerProgress> for usize` impl yielding numbers between 0 and a 1000
-/// which can be shown as a progress bar.
-enum JoinerProgress {
-    /// An error occurred.
-    Error,
-    /// vg-vc-request-with-auth sent.
-    ///
-    /// Typically shows as "alice@addr verified, introducing myself."
-    RequestWithAuthSent,
-    // /// Completed securejoin.
-    // Succeeded,
-}
-
-impl From<JoinerProgress> for usize {
-    fn from(progress: JoinerProgress) -> Self {
-        match progress {
-            JoinerProgress::Error => 0,
-            JoinerProgress::RequestWithAuthSent => 400,
-            // JoinerProgress::Succeeded => 1000,
-        }
-    }
-}
--- a/src/securejoin/bobstate.rs
+++ b/src/securejoin/bobstate.rs
@@ -5,21 +5,22 @@
 //! provides all the information to its driver so it can perform the correct interactions.
 //!
 //! The [`BobState`] is only directly used to initially create it when starting the
-//! protocol.
+//! protocol.  Afterwards it must be stored in a mutex and the [`BobStateHandle`] should be
+//! used to work with the state.

-use anyhow::{Error, Result};
-use rusqlite::Connection;
+use anyhow::{bail, Error, Result};
+use async_std::sync::MutexGuard;

 use crate::chat::{self, ChatId};
+use crate::constants::{Blocked, Viewtype};
 use crate::contact::{Contact, Origin};
 use crate::context::Context;
 use crate::events::EventType;
 use crate::headerdef::HeaderDef;
 use crate::key::{DcKey, SignedPublicKey};
-use crate::message::{Message, Viewtype};
+use crate::message::Message;
 use crate::mimeparser::{MimeMessage, SystemMessage};
 use crate::param::Param;
-use crate::sql::Sql;

 use super::qrinvite::QrInvite;
 use super::{
@@ -45,14 +46,123 @@ pub enum BobHandshakeStage {
    Terminated(&'static str),
 }

-/// The securejoin state kept while Bob is joining.
+/// A handle to work with the [`BobState`] of Bob's securejoin protocol.
 ///
-/// This is stored in the database and loaded from there using [`BobState::from_db`].  To
-/// create a new one use [`BobState::start_protocol`].
+/// This handle can only be created for when an underlying [`BobState`] exists.  It keeps
+/// open a lock which guarantees unique access to the state and this struct must be dropped
+/// to return the lock.
+pub struct BobStateHandle<'a> {
+    guard: MutexGuard<'a, Option<BobState>>,
+    bobstate: BobState,
+    clear_state_on_drop: bool,
+}
+
+impl<'a> BobStateHandle<'a> {
+    /// Creates a new instance, upholding the guarantee that [`BobState`] must exist.
+    pub fn from_guard(mut guard: MutexGuard<'a, Option<BobState>>) -> Option<Self> {
+        guard.take().map(|bobstate| Self {
+            guard,
+            bobstate,
+            clear_state_on_drop: false,
+        })
+    }
+
+    /// Returns the [`ChatId`] of the group chat to join or the 1:1 chat with Alice.
+    pub async fn chat_id(&self, context: &Context) -> Result<ChatId> {
+        match self.bobstate.invite {
+            QrInvite::Group { ref grpid, .. } => {
+                if let Some((chat_id, _, _)) = chat::get_chat_id_by_grpid(context, &grpid).await? {
+                    Ok(chat_id)
+                } else {
+                    bail!("chat not found")
+                }
+            }
+            QrInvite::Contact { .. } => Ok(self.bobstate.chat_id),
+        }
+    }
+
+    /// Returns a reference to the [`QrInvite`] of the joiner process.
+    pub fn invite(&self) -> &QrInvite {
+        &self.bobstate.invite
+    }
+
+    /// Handles the given message for the securejoin handshake for Bob.
+    ///
+    /// This proxies to [`BobState::handle_message`] and makes sure to clear the state when
+    /// the protocol state is terminal.  It returns `Some` if the message successfully
+    /// advanced the state of the protocol state machine, `None` otherwise.
+    pub async fn handle_message(
+        &mut self,
+        context: &Context,
+        mime_message: &MimeMessage,
+    ) -> Option<BobHandshakeStage> {
+        info!(context, "Handling securejoin message for BobStateHandle");
+        match self.bobstate.handle_message(context, mime_message).await {
+            Ok(Some(stage)) => {
+                if matches!(
+                    stage,
+                    BobHandshakeStage::Completed | BobHandshakeStage::Terminated(_)
+                ) {
+                    self.finish_protocol(context).await;
+                }
+                Some(stage)
+            }
+            Ok(None) => None,
+            Err(err) => {
+                warn!(
+                    context,
+                    "Error handling handshake message, aborting handshake: {}", err
+                );
+                self.finish_protocol(context).await;
+                None
+            }
+        }
+    }
+
+    /// Marks the bob handshake as finished.
+    ///
+    /// This will clear the state on [`InnerContext::bob`] once this handle is dropped,
+    /// allowing a new handshake to be started from [`Bob`].
+    ///
+    /// Note that the state is only cleared on Drop since otherwise the invariant that the
+    /// state is always consistent is violated.  However the "ongoing" process is released
+    /// here a little bit earlier as this requires access to the Context, which we do not
+    /// have on Drop (Drop can not run asynchronous code).  Stopping the "ongoing" process
+    /// will release [`securejoin`](super::securejoin) which in turn will finally free the
+    /// ongoing process using [`Context::free_ongoing`].
+    ///
+    /// [`InnerContext::bob`]: crate::context::InnerContext::bob
+    /// [`Bob`]: super::Bob
+    async fn finish_protocol(&mut self, context: &Context) {
+        info!(context, "Finishing securejoin handshake protocol for Bob");
+        self.clear_state_on_drop = true;
+        if let QrInvite::Group { .. } = self.bobstate.invite {
+            context.stop_ongoing().await;
+        }
+    }
+}
+
+impl<'a> Drop for BobStateHandle<'a> {
+    fn drop(&mut self) {
+        if self.clear_state_on_drop {
+            // The Option should already be empty because we take it out in the ctor,
+            // however the typesystem doesn't guarantee this so do it again anyway.
+            self.guard.take();
+        } else {
+            // Make sure to put back the BobState into the Option of the Mutex, it was taken
+            // out by the constructor.
+            self.guard.replace(self.bobstate.clone());
+        }
+    }
+}
+
+/// The securejoin state kept in-memory while Bob is joining.
 ///
-/// This purposefully has nothing optional, the state is always fully valid.  However once a
-/// terminal state is reached in [`BobState::next`] the entry in the database will already
-/// have been deleted.
+/// This is currently stored in [`Bob`] which is stored on the [`Context`], thus Bob can
+/// only run one securejoin joiner protocol at a time.
+///
+/// This purposefully has nothing optional, the state is always fully valid.  See
+/// [`Bob::state`] to get access to this state.
 ///
 /// # Conducting the securejoin handshake
 ///
@@ -67,8 +177,6 @@ pub enum BobHandshakeStage {
 /// [`Bob::state`]: super::Bob::state
 #[derive(Debug, Clone)]
 pub struct BobState {
-    /// Database primary key.
-    id: i64,
    /// The QR Invite code.
    invite: QrInvite,
    /// The next expected message from Alice.
@@ -80,120 +188,39 @@ pub struct BobState {
 impl BobState {
    /// Starts the securejoin protocol and creates a new [`BobState`].
    ///
-    /// The `chat_id` needs to be the ID of the 1:1 chat with Alice, this chat will be used
-    /// to exchange the SecureJoin handshake messages as well as for showing error messages.
-    ///
    /// # Bob - the joiner's side
    /// ## Step 2 in the "Setup Contact protocol", section 2.1 of countermitm 0.10.0
-    ///
-    /// This currently aborts any other securejoin process if any did not yet complete.  The
-    /// ChatIds of the relevant 1:1 chat of any aborted handshakes are returned so that you
-    /// can report the aboreted handshake in the chat.  (Yes, there can only ever be one
-    /// ChatId in that Vec, the database doesn't care though.)
    pub async fn start_protocol(
        context: &Context,
        invite: QrInvite,
-        chat_id: ChatId,
-    ) -> Result<(Self, BobHandshakeStage, Vec<Self>), JoinError> {
-        let (stage, next) =
-            if fingerprint_equals_sender(context, invite.fingerprint(), invite.contact_id()).await?
-            {
-                // The scanned fingerprint matches Alice's key, we can proceed to step 4b.
-                info!(context, "Taking securejoin protocol shortcut");
-                send_handshake_message(context, &invite, chat_id, BobHandshakeMsg::RequestWithAuth)
-                    .await?;
-                (
-                    BobHandshakeStage::RequestWithAuthSent,
-                    SecureJoinStep::ContactConfirm,
-                )
-            } else {
-                send_handshake_message(context, &invite, chat_id, BobHandshakeMsg::Request).await?;
-                (BobHandshakeStage::RequestSent, SecureJoinStep::AuthRequired)
+    ) -> Result<(Self, BobHandshakeStage), JoinError> {
+        let chat_id =
+            ChatId::create_for_contact_with_blocked(context, invite.contact_id(), Blocked::Yes)
+                .await
+                .map_err(JoinError::UnknownContact)?;
+        if fingerprint_equals_sender(context, invite.fingerprint(), invite.contact_id()).await? {
+            // The scanned fingerprint matches Alice's key, we can proceed to step 4b.
+            info!(context, "Taking securejoin protocol shortcut");
+            let state = Self {
+                invite,
+                next: SecureJoinStep::ContactConfirm,
+                chat_id,
            };
-        let (id, aborted_states) =
-            Self::insert_new_db_entry(context, next, invite.clone(), chat_id).await?;
-        let state = Self {
-            id,
-            invite,
-            next,
-            chat_id,
-        };
-        Ok((state, stage, aborted_states))
-    }
-
-    /// Inserts a new entry in the bobstate table, deleting all previous entries.
-    ///
-    /// Returns the ID of the newly inserted entry and all the aborted states.
-    async fn insert_new_db_entry(
-        context: &Context,
-        next: SecureJoinStep,
-        invite: QrInvite,
-        chat_id: ChatId,
-    ) -> Result<(i64, Vec<Self>)> {
-        context
-            .sql
-            .transaction(move |transaction| {
-                // We need to start a write transaction right away, so that we have the
-                // database locked and no one else can write to this table while we read the
-                // rows that we will delete.  So start with a dummy UPDATE.
-                transaction.execute(
-                    r#"UPDATE bobstate SET next_step=?;"#,
-                    params![SecureJoinStep::Terminated],
-                )?;
-                let mut stmt = transaction.prepare("SELECT id FROM bobstate;")?;
-                let mut aborted = Vec::new();
-                for id in stmt.query_map(params![], |row| row.get::<_, i64>(0))? {
-                    let id = id?;
-                    let state = BobState::from_db_id(transaction, id)?;
-                    aborted.push(state);
-                }
-
-                // Finally delete everything and insert new row.
-                transaction.execute("DELETE FROM bobstate;", params![])?;
-                transaction.execute(
-                    "INSERT INTO bobstate (invite, next_step, chat_id) VALUES (?, ?, ?);",
-                    params![invite, next, chat_id],
-                )?;
-                let id = transaction.last_insert_rowid();
-                Ok((id, aborted))
-            })
-            .await
-    }
-
-    /// Load [`BobState`] from the database.
-    pub async fn from_db(sql: &Sql) -> Result<Option<Self>> {
-        // Because of how Self::start_protocol() updates the database we are currently
-        // guaranteed to only have one row.
-        sql.query_row_optional(
-            "SELECT id, invite, next_step, chat_id FROM bobstate;",
-            paramsv![],
-            |row| {
-                let s = BobState {
-                    id: row.get(0)?,
-                    invite: row.get(1)?,
-                    next: row.get(2)?,
-                    chat_id: row.get(3)?,
-                };
-                Ok(s)
-            },
-        )
-        .await
-    }
-
-    fn from_db_id(connection: &Connection, id: i64) -> rusqlite::Result<Self> {
-        connection.query_row(
-            "SELECT invite, next_step, chat_id FROM bobstate WHERE id=?;",
-            params![id],
-            |row| {
-                let s = BobState {
-                    id,
-                    invite: row.get(0)?,
-                    next: row.get(1)?,
-                    chat_id: row.get(2)?,
-                };
-                Ok(s)
-            },
-        )
+            state
+                .send_handshake_message(context, BobHandshakeMsg::RequestWithAuth)
+                .await?;
+            Ok((state, BobHandshakeStage::RequestWithAuthSent))
+        } else {
+            let state = Self {
+                invite,
+                next: SecureJoinStep::AuthRequired,
+                chat_id,
+            };
+            state
+                .send_handshake_message(context, BobHandshakeMsg::Request)
+                .await?;
+            Ok((state, BobHandshakeStage::RequestSent))
+        }
    }

    /// Returns the [`QrInvite`] used to create this [`BobState`].
@@ -201,45 +228,20 @@ impl BobState {
        &self.invite
    }

-    /// Returns the [`ChatId`] of the 1:1 chat with the inviter (Alice).
-    pub fn alice_chat(&self) -> ChatId {
-        self.chat_id
-    }
-
-    /// Updates the [`BobState::next`] field in memory and the database.
-    ///
-    /// If the next state is a terminal state it will remove this [`BobState`] from the
-    /// database.
-    ///
-    /// If a user scanned a new QR code after this [`BobState`] was loaded this update will
-    /// fail currently because starting a new joiner process currently kills any previously
-    /// running processes.  This is a limitation which will go away in the future.
-    async fn update_next(&mut self, sql: &Sql, next: SecureJoinStep) -> Result<()> {
-        // TODO: write test verifying how this would fail.
-        match next {
-            SecureJoinStep::AuthRequired | SecureJoinStep::ContactConfirm => {
-                sql.execute(
-                    "UPDATE bobstate SET next_step=? WHERE id=?;",
-                    paramsv![next, self.id],
-                )
-                .await?;
-            }
-            SecureJoinStep::Terminated | SecureJoinStep::Completed => {
-                sql.execute("DELETE FROM bobstate WHERE id=?;", paramsv!(self.id))
-                    .await?;
-            }
-        }
-        self.next = next;
-        Ok(())
-    }
-
    /// Handles the given message for the securejoin handshake for Bob.
    ///
    /// If the message was not used for this handshake `None` is returned, otherwise the new
    /// stage is returned.  Once [`BobHandshakeStage::Completed`] or
    /// [`BobHandshakeStage::Terminated`] are reached this [`BobState`] should be destroyed,
    /// further calling it will just result in the messages being unused by this handshake.
-    pub async fn handle_message(
+    ///
+    /// # Errors
+    ///
+    /// Under normal operation this should never return an error, regardless of what kind of
+    /// message it is called with.  Any errors therefore should be treated as fatal internal
+    /// errors and this entire [`BobState`] should be thrown away as the state machine can
+    /// no longer be considered consistent.
+    async fn handle_message(
        &mut self,
        context: &Context,
        mime_message: &MimeMessage,
@@ -302,20 +304,17 @@ impl BobState {
            } else {
                "Required encryption missing"
            };
-            self.update_next(&context.sql, SecureJoinStep::Terminated)
-                .await?;
+            self.next = SecureJoinStep::Terminated;
            return Ok(Some(BobHandshakeStage::Terminated(reason)));
        }
        if !fingerprint_equals_sender(context, self.invite.fingerprint(), self.invite.contact_id())
            .await?
        {
-            self.update_next(&context.sql, SecureJoinStep::Terminated)
-                .await?;
+            self.next = SecureJoinStep::Terminated;
            return Ok(Some(BobHandshakeStage::Terminated("Fingerprint mismatch")));
        }
        info!(context, "Fingerprint verified.",);
-        self.update_next(&context.sql, SecureJoinStep::ContactConfirm)
-            .await?;
+        self.next = SecureJoinStep::ContactConfirm;
        self.send_handshake_message(context, BobHandshakeMsg::RequestWithAuth)
            .await?;
        Ok(Some(BobHandshakeStage::RequestWithAuthSent))
@@ -363,8 +362,7 @@ impl BobState {
        if vg_expect_encrypted
            && !encrypted_and_signed(context, mime_message, Some(self.invite.fingerprint()))
        {
-            self.update_next(&context.sql, SecureJoinStep::Terminated)
-                .await?;
+            self.next = SecureJoinStep::Terminated;
            return Ok(Some(BobHandshakeStage::Terminated(
                "Contact confirm message not encrypted",
            )));
@@ -396,8 +394,7 @@ impl BobState {
            // This is not an error affecting the protocol outcome.
            .ok();

-        self.update_next(&context.sql, SecureJoinStep::Completed)
-            .await?;
+        self.next = SecureJoinStep::Completed;
        Ok(Some(BobHandshakeStage::Completed))
    }

@@ -409,60 +406,48 @@ impl BobState {
        context: &Context,
        step: BobHandshakeMsg,
    ) -> Result<(), SendMsgError> {
-        send_handshake_message(context, &self.invite, self.chat_id, step).await
+        let mut msg = Message {
+            viewtype: Viewtype::Text,
+            text: Some(step.body_text(&self.invite)),
+            hidden: true,
+            ..Default::default()
+        };
+        msg.param.set_cmd(SystemMessage::SecurejoinMessage);
+
+        // Sends the step in Secure-Join header.
+        msg.param
+            .set(Param::Arg, step.securejoin_header(&self.invite));
+
+        match step {
+            BobHandshakeMsg::Request => {
+                // Sends the Secure-Join-Invitenumber header in mimefactory.rs.
+                msg.param.set(Param::Arg2, self.invite.invitenumber());
+                msg.param.set_int(Param::ForcePlaintext, 1);
+            }
+            BobHandshakeMsg::RequestWithAuth => {
+                // Sends the Secure-Join-Auth header in mimefactory.rs.
+                msg.param.set(Param::Arg2, self.invite.authcode());
+                msg.param.set_int(Param::GuaranteeE2ee, 1);
+            }
+            BobHandshakeMsg::ContactConfirmReceived => {
+                msg.param.set_int(Param::GuaranteeE2ee, 1);
+            }
+        };
+
+        // Sends our own fingerprint in the Secure-Join-Fingerprint header.
+        let bob_fp = SignedPublicKey::load_self(context).await?.fingerprint();
+        msg.param.set(Param::Arg3, bob_fp.hex());
+
+        // Sends the grpid in the Secure-Join-Group header.
+        if let QrInvite::Group { ref grpid, .. } = self.invite {
+            msg.param.set(Param::Arg4, grpid);
+        }
+
+        chat::send_msg(context, self.chat_id, &mut msg).await?;
+        Ok(())
    }
 }

-/// Sends the requested handshake message to Alice.
-///
-/// Same as [`BobState::send_handshake_message`] but this variation allows us to send this
-/// message before we create the state in [`BobState::start_protocol`].
-async fn send_handshake_message(
-    context: &Context,
-    invite: &QrInvite,
-    chat_id: ChatId,
-    step: BobHandshakeMsg,
-) -> Result<(), SendMsgError> {
-    let mut msg = Message {
-        viewtype: Viewtype::Text,
-        text: Some(step.body_text(invite)),
-        hidden: true,
-        ..Default::default()
-    };
-    msg.param.set_cmd(SystemMessage::SecurejoinMessage);
-
-    // Sends the step in Secure-Join header.
-    msg.param.set(Param::Arg, step.securejoin_header(invite));
-
-    match step {
-        BobHandshakeMsg::Request => {
-            // Sends the Secure-Join-Invitenumber header in mimefactory.rs.
-            msg.param.set(Param::Arg2, invite.invitenumber());
-            msg.force_plaintext();
-        }
-        BobHandshakeMsg::RequestWithAuth => {
-            // Sends the Secure-Join-Auth header in mimefactory.rs.
-            msg.param.set(Param::Arg2, invite.authcode());
-            msg.param.set_int(Param::GuaranteeE2ee, 1);
-        }
-        BobHandshakeMsg::ContactConfirmReceived => {
-            msg.param.set_int(Param::GuaranteeE2ee, 1);
-        }
-    };
-
-    // Sends our own fingerprint in the Secure-Join-Fingerprint header.
-    let bob_fp = SignedPublicKey::load_self(context).await?.fingerprint();
-    msg.param.set(Param::Arg3, bob_fp.hex());
-
-    // Sends the grpid in the Secure-Join-Group header.
-    if let QrInvite::Group { ref grpid, .. } = invite {
-        msg.param.set(Param::Arg4, grpid);
-    }
-
-    chat::send_msg(context, chat_id, &mut msg).await?;
-    Ok(())
-}
-
 /// Identifies the SecureJoin handshake messages Bob can send.
 enum BobHandshakeMsg {
    /// vc-request or vg-request
@@ -507,8 +492,8 @@ impl BobHandshakeMsg {
 }

 /// The next message expected by [`BobState`] in the setup-contact/secure-join protocol.
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum SecureJoinStep {
+#[derive(Debug, Clone, PartialEq)]
+enum SecureJoinStep {
    /// Expecting the auth-required message.
    ///
    /// This corresponds to the `vc-auth-required` or `vg-auth-required` message of step 3d.
@@ -548,29 +533,3 @@ impl SecureJoinStep {
        }
    }
 }
-
-impl rusqlite::types::ToSql for SecureJoinStep {
-    fn to_sql(&self) -> rusqlite::Result<rusqlite::types::ToSqlOutput<'_>> {
-        let num = match &self {
-            SecureJoinStep::AuthRequired => 0,
-            SecureJoinStep::ContactConfirm => 1,
-            SecureJoinStep::Terminated => 2,
-            SecureJoinStep::Completed => 3,
-        };
-        let val = rusqlite::types::Value::Integer(num);
-        let out = rusqlite::types::ToSqlOutput::Owned(val);
-        Ok(out)
-    }
-}
-
-impl rusqlite::types::FromSql for SecureJoinStep {
-    fn column_result(value: rusqlite::types::ValueRef<'_>) -> rusqlite::types::FromSqlResult<Self> {
-        i64::column_result(value).and_then(|val| match val {
-            0 => Ok(SecureJoinStep::AuthRequired),
-            1 => Ok(SecureJoinStep::ContactConfirm),
-            2 => Ok(SecureJoinStep::Terminated),
-            3 => Ok(SecureJoinStep::Completed),
-            _ => Err(rusqlite::types::FromSqlError::OutOfRange(val)),
-        })
-    }
-}
--- a/src/securejoin/qrinvite.rs
+++ b/src/securejoin/qrinvite.rs
@@ -8,23 +8,22 @@ use std::convert::TryFrom;

 use anyhow::{bail, Error, Result};

-use crate::contact::ContactId;
 use crate::key::Fingerprint;
 use crate::qr::Qr;

 /// Represents the data from a QR-code scan.
 ///
 /// There are methods to conveniently access fields present in both variants.
-#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+#[derive(Debug, Clone)]
 pub enum QrInvite {
    Contact {
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        invitenumber: String,
        authcode: String,
    },
    Group {
-        contact_id: ContactId,
+        contact_id: u32,
        fingerprint: Fingerprint,
        name: String,
        grpid: String,
@@ -38,7 +37,7 @@ impl QrInvite {
    ///
    /// The actual QR-code contains a URL-encoded email address, but upon scanning this is
    /// translated to a contact ID.
-    pub fn contact_id(&self) -> ContactId {
+    pub fn contact_id(&self) -> u32 {
        match self {
            Self::Contact { contact_id, .. } | Self::Group { contact_id, .. } => *contact_id,
        }
@@ -101,22 +100,3 @@ impl TryFrom<Qr> for QrInvite {
        }
    }
 }
-
-impl rusqlite::types::ToSql for QrInvite {
-    fn to_sql(&self) -> rusqlite::Result<rusqlite::types::ToSqlOutput<'_>> {
-        let json = serde_json::to_string(self)
-            .map_err(|err| rusqlite::Error::ToSqlConversionFailure(Box::new(err)))?;
-        let val = rusqlite::types::Value::Text(json);
-        let out = rusqlite::types::ToSqlOutput::Owned(val);
-        Ok(out)
-    }
-}
-
-impl rusqlite::types::FromSql for QrInvite {
-    fn column_result(value: rusqlite::types::ValueRef<'_>) -> rusqlite::types::FromSqlResult<Self> {
-        String::column_result(value).and_then(|val| {
-            serde_json::from_str(&val)
-                .map_err(|err| rusqlite::types::FromSqlError::Other(Box::new(err)))
-        })
-    }
-}
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .60.0
 .54.0