diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80560f305..fcb485f98 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog 
 
+## 1.33.0
+
+- let `dc_set_muted()` also mute one-to-one chats #1470
+
+- fix a bug that led to load and traffic if the server does not use sent-folder
+  #1472
+
+
 ## 1.32.0
 
 - fix endless loop when trying to download messages with bad RFC Message-ID,
diff --git a/Cargo.lock b/Cargo.lock
index 5e2509042..367a0517c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "addr2line"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gimli 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -68,7 +68,7 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.29"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -99,8 +99,8 @@ name = "async-attributes"
 version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -121,7 +121,7 @@ dependencies = [
  "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rental 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "stop-token 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -131,7 +131,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "async-std 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-tls 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -149,7 +149,7 @@ dependencies = [
  "hostname 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "nom 5.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pin-project 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -177,7 +177,7 @@ dependencies = [
  "mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-project-lite 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -202,7 +202,7 @@ dependencies = [
  "mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-project-lite 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -222,9 +222,9 @@ name = "async-trait"
 version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -232,7 +232,7 @@ name = "atty"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hermit-abi 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -249,10 +249,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.47"
+version = "0.3.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "addr2line 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "addr2line 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "object 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -380,7 +380,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bumpalo"
-version = "3.2.1"
+version = "3.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -436,7 +436,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.52"
+version = "1.0.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -482,7 +482,7 @@ name = "clear_on_drop"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -587,8 +587,8 @@ name = "ctor"
 version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -617,12 +617,12 @@ name = "darling_core"
 version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "ident_case 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -631,8 +631,8 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "darling_core 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -655,16 +655,16 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "1.32.0"
+version = "1.33.0"
 dependencies = [
  "ansi_term 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "anyhow 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "anyhow 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "async-imap 0.2.0 (git+https://github.com/async-email/async-imap?branch=feat/send)",
  "async-native-tls 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "async-smtp 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "async-std 1.5.0 (git+https://github.com/async-rs/async-std?rev=3ff9e98f20a193eb63e43fb9d71f9d60c33f6d58)",
  "async-trait 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "backtrace 0.3.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -686,7 +686,7 @@ dependencies = [
  "lettre_email 0.9.2 (git+https://github.com/deltachat/lettre)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "mailparse 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mailparse 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-tls 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-derive 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -712,7 +712,7 @@ dependencies = [
  "strum 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "strum_macros 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread-local-object 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -720,22 +720,22 @@ dependencies = [
 name = "deltachat_derive"
 version = "2.0.0"
 dependencies = [
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "deltachat_ffi"
-version = "1.32.0"
+version = "1.33.0"
 dependencies = [
- "anyhow 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "anyhow 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "async-std 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "deltachat 1.32.0",
+ "deltachat 1.33.0",
  "human-panic 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -745,9 +745,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "darling 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "derive_builder_core 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -756,9 +756,9 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "darling 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -846,7 +846,7 @@ dependencies = [
  "hex 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -936,7 +936,7 @@ name = "error-chain"
 version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -953,7 +953,7 @@ name = "failure"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -962,9 +962,9 @@ name = "failure_derive"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1004,7 +1004,7 @@ dependencies = [
 
 [[package]]
 name = "fnv"
-version = "1.0.6"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1088,9 +1088,9 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1103,7 +1103,7 @@ name = "futures-task"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1123,7 +1123,7 @@ dependencies = [
  "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "pin-project 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-nested 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1173,7 +1173,7 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1181,7 +1181,7 @@ dependencies = [
  "indexmap 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1195,7 +1195,7 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.12"
+version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1221,7 +1221,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1244,7 +1244,7 @@ name = "human-panic"
 version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "os_type 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1277,9 +1277,9 @@ dependencies = [
  "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "pin-project 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "tower-service 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "want 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1292,7 +1292,7 @@ dependencies = [
  "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-tls 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-tls 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1332,7 +1332,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "skeptic 0.13.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1477,7 +1477,7 @@ name = "libsqlite3-sys"
 version = "0.17.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1518,7 +1518,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "mailparse"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1653,7 +1653,7 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1706,9 +1706,9 @@ name = "num-derive"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1753,7 +1753,7 @@ name = "num_cpus"
 version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hermit-abi 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1764,7 +1764,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "once_cell"
-version = "1.3.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1795,7 +1795,7 @@ name = "openssl-src"
 version = "111.9.0+1.1.1g"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1804,7 +1804,7 @@ version = "0.9.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-src 111.9.0+1.1.1g (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1902,7 +1902,7 @@ dependencies = [
  "sha2 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha3 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "thiserror 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "try_from 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "twofish 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "x25519-dalek 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1911,20 +1911,20 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "0.4.16"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pin-project-internal 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project-internal 0.4.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.16"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1955,7 +1955,7 @@ dependencies = [
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.6"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1991,7 +1991,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2044,10 +2044,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "quote"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2131,7 +2131,7 @@ name = "rand_chacha"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2281,9 +2281,9 @@ name = "rental-impl"
 version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2312,7 +2312,7 @@ dependencies = [
  "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-tls 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2391,7 +2391,7 @@ name = "rusty-fork"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-error 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "wait-timeout 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2510,9 +2510,9 @@ name = "serde_derive"
 version = "1.0.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2609,9 +2609,9 @@ name = "snafu-derive"
 version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2662,9 +2662,9 @@ version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2684,11 +2684,11 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.21"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2705,9 +2705,9 @@ name = "synstructure"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2743,20 +2743,20 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.17"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "thiserror-impl 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror-impl 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.17"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2786,11 +2786,11 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "0.2.20"
+version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2807,7 +2807,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "native-tls 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2820,7 +2820,7 @@ dependencies = [
  "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-project-lite 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3012,12 +3012,12 @@ name = "wasm-bindgen-backend"
 version = "0.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bumpalo 3.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bumpalo 3.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-shared 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3037,7 +3037,7 @@ name = "wasm-bindgen-macro"
 version = "0.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-macro-support 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3046,9 +3046,9 @@ name = "wasm-bindgen-macro-support"
 version = "0.2.62"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-backend 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-shared 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3152,14 +3152,14 @@ name = "zeroize_derive"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [metadata]
-"checksum addr2line 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "456d75cbb82da1ad150c8a9d97285ffcd21c9931dcb11e995903e7d75141b38b"
+"checksum addr2line 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a49806b9dadc843c61e7c97e72490ad7f7220ae249012fbda9ad0609457c0543"
 "checksum adler32 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5d2e7343e7fc9de883d1b0341e0b13970f764c14101234857d2ddafa1cb1cac2"
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+"checksum thiserror 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "5976891d6950b4f68477850b5b9e5aa64d955961466f9e174363f573e54e8ca7"
+"checksum thiserror-impl 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "ab81dbd1cd69cd2ce22ecfbdd3bdb73334ba25350649408cc6c085f46d89573d"
 "checksum thread-local-object 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7da3caa820d0308c84c8654f6cafd81cc3195d45433311cbe22fcf44fc8be071"
 "checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 "checksum time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
-"checksum tokio 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)" = "05c1d570eb1a36f0345a5ce9c6c6e665b70b73d11236912c0b477616aeec47b1"
+"checksum tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)" = "d099fa27b9702bed751524694adbe393e18b36b204da91eb1cbbbbb4a5ee2d58"
 "checksum tokio-tls 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9a70f4fcd7b3b24fb194f837560168208f669ca8cb70d0c4b862944452396343"
 "checksum tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
 "checksum toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
diff --git a/Cargo.toml b/Cargo.toml
index df3e5f387..91f23517b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "1.32.0"
+version = "1.33.0"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index 9aa19c8a6..887fcff78 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.32.0"
+version = "1.33.0"
 description = "Deltachat FFI"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
diff --git a/deltachat-ffi/deltachat.h b/deltachat-ffi/deltachat.h
index 7a497d369..406ddbb33 100644
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
@@ -381,7 +381,8 @@ char*           dc_get_blobdir               (const dc_context_t* context);
  *                    Messages are deleted whether they were seen or not, the UI should clearly point that out.
  *                    See also dc_estimate_deletion_cnt().
  * - `delete_server_after` = 0=do not delete messages from server automatically (default),
- *                    >=1=seconds, after which messages are deleted automatically from the server.
+ *                    1=delete messages directly after receiving from server, mvbox is skipped.
+ *                    >1=seconds, after which messages are deleted automatically from the server, mvbox is used as defined.
  *                    "Saved messages" are deleted from the server as well as
  *                    emails matching the `show_emails` settings above, the UI should clearly point that out.
  *                    See also dc_estimate_deletion_cnt().
@@ -1350,7 +1351,7 @@ int             dc_set_chat_profile_image    (dc_context_t* context, uint32_t ch
 /**
  * Set mute duration of a chat.
  *
- * This value can be checked by the ui upon receiving a new message to decide whether it should trigger an notification.
+ * The ui can then call dc_chat_is_muted() when receiving a new message to decide whether it should trigger an notification.
  *
  * Sends out #DC_EVENT_CHAT_MODIFIED.
  *
@@ -2687,7 +2688,7 @@ int             dc_chat_is_sending_locations (const dc_chat_t* chat);
 
 
 /**
- * Check whether the chat is currently muted
+ * Check whether the chat is currently muted (can be changed by dc_set_chat_mute_duration()).
  *
  * @memberof dc_chat_t
  * @param chat The chat object.
diff --git a/python/src/deltachat/account.py b/python/src/deltachat/account.py
index b24de8de6..c641a8e8f 100644
--- a/python/src/deltachat/account.py
+++ b/python/src/deltachat/account.py
@@ -30,7 +30,7 @@ class Account(object):
     """
     MissingCredentials = MissingCredentials
 
-    def __init__(self, db_path, os_name=None):
+    def __init__(self, db_path, os_name=None, logging=True):
         """ initialize account object.
 
         :param db_path: a path to the account database. The database
@@ -39,6 +39,7 @@ class Account(object):
         """
         # initialize per-account plugin system
         self._pm = hookspec.PerAccount._make_plugin_manager()
+        self._logging = logging
         self.add_account_plugin(self)
 
         self._dc_context = ffi.gc(
@@ -63,6 +64,14 @@ class Account(object):
         atexit.register(self.shutdown)
         hook.dc_account_init(account=self)
 
+    def disable_logging(self):
+        """ disable logging. """
+        self._logging = False
+
+    def enable_logging(self):
+        """ re-enable logging. """
+        self._logging = True
+
     @hookspec.account_hookimpl
     def ac_process_ffi_event(self, ffi_event):
         for name, kwargs in self._map_ffi_event(ffi_event):
@@ -73,7 +82,8 @@ class Account(object):
     #    self.shutdown()
 
     def ac_log_line(self, msg):
-        self._pm.hook.ac_log_line(message=msg)
+        if self._logging:
+            self._pm.hook.ac_log_line(message=msg)
 
     def _check_config_key(self, name):
         if name not in self._configkeys:
diff --git a/python/src/deltachat/testplugin.py b/python/src/deltachat/testplugin.py
index f336ac058..7208e8280 100644
--- a/python/src/deltachat/testplugin.py
+++ b/python/src/deltachat/testplugin.py
@@ -5,9 +5,13 @@ import subprocess
 import queue
 import threading
 import fnmatch
+import time
+import weakref
+import tempfile
+
 import pytest
 import requests
-import time
+
 from . import Account, const
 from .tracker import ConfigureTracker
 from .capi import lib
@@ -15,7 +19,7 @@ from .eventlogger import FFIEventLogger, FFIEventTracker
 from _pytest.monkeypatch import MonkeyPatch
 from _pytest._code import Source
 
-import tempfile
+import deltachat
 
 
 def pytest_addoption(parser):
@@ -40,11 +44,55 @@ def pytest_configure(config):
         if cfg:
             config.option.liveconfig = cfg
 
+    # Make sure we don't get garbled output because threads keep running
+    # collect all ever created accounts in a weakref-set (so we don't
+    # keep objects unneccessarily alive) and enable/disable logging
+    # for each pytest test phase # (setup/call/teardown).
+    # Additionally make the acfactory use a logging/no-logging default.
 
-def pytest_runtest_setup(item):
-    if (list(item.iter_markers(name="ignored"))
-            and not item.config.getoption("ignored")):
-        pytest.skip("Ignored tests not requested, use --ignored")
+    class LoggingAspect:
+        def __init__(self):
+            self._accounts = weakref.WeakSet()
+
+        @deltachat.global_hookimpl
+        def dc_account_init(self, account):
+            self._accounts.add(account)
+
+        def disable_logging(self, item):
+            for acc in self._accounts:
+                acc.disable_logging()
+            acfactory = item.funcargs.get("acfactory")
+            if acfactory:
+                acfactory.set_logging_default(False)
+
+        def enable_logging(self, item):
+            for acc in self._accounts:
+                acc.enable_logging()
+            acfactory = item.funcargs.get("acfactory")
+            if acfactory:
+                acfactory.set_logging_default(True)
+
+        @pytest.hookimpl(hookwrapper=True)
+        def pytest_runtest_setup(self, item):
+            self.enable_logging(item)
+            yield
+            self.disable_logging(item)
+
+        @pytest.hookimpl(hookwrapper=True)
+        def pytest_pyfunc_call(self, pyfuncitem):
+            self.enable_logging(pyfuncitem)
+            yield
+            self.disable_logging(pyfuncitem)
+
+        @pytest.hookimpl(hookwrapper=True)
+        def pytest_runtest_teardown(self, item):
+            self.enable_logging(item)
+            yield
+            self.disable_logging(item)
+
+    la = LoggingAspect()
+    config.pluginmanager.register(la)
+    deltachat.register_global_plugin(la)
 
 
 def pytest_report_header(config, startdir):
@@ -164,24 +212,34 @@ def acfactory(pytestconfig, tmpdir, request, session_liveconfig, data):
             self.live_count = 0
             self.offline_count = 0
             self._finalizers = []
+            self._accounts = []
             self.init_time = time.time()
             self._generated_keys = ["alice", "bob", "charlie",
                                     "dom", "elena", "fiona"]
+            self.set_logging_default(False)
 
         def finalize(self):
             while self._finalizers:
                 fin = self._finalizers.pop()
                 fin()
 
+            while self._accounts:
+                acc = self._accounts.pop()
+                acc.shutdown()
+                acc.disable_logging()
+
         def make_account(self, path, logid, quiet=False):
-            ac = Account(path)
+            ac = Account(path, logging=self._logging)
             ac._evtracker = ac.add_account_plugin(FFIEventTracker(ac))
             ac._configtracker = ac.add_account_plugin(ConfigureTracker())
             if not quiet:
                 ac.add_account_plugin(FFIEventLogger(ac, logid=logid))
-            self._finalizers.append(ac.shutdown)
+            self._accounts.append(ac)
             return ac
 
+        def set_logging_default(self, logging):
+            self._logging = bool(logging)
+
         def get_unconfigured_account(self):
             self.offline_count += 1
             tmpdb = tmpdir.join("offlinedb%d" % self.offline_count)
diff --git a/src/chat.rs b/src/chat.rs
index f756a8134..a42c932c5 100644
--- a/src/chat.rs
+++ b/src/chat.rs
@@ -1742,8 +1742,7 @@ pub async fn delete_device_expired_messages(context: &Context) -> Result<bool, E
              WHERE timestamp < ? \
              AND chat_id > ? \
              AND chat_id != ? \
-             AND chat_id != ? \
-             AND NOT hidden",
+             AND chat_id != ?",
                 paramsv![
                     DC_CHAT_ID_TRASH,
                     threshold_timestamp,
diff --git a/src/configure/mod.rs b/src/configure/mod.rs
index fba484ca8..65ce5a83c 100644
--- a/src/configure/mod.rs
+++ b/src/configure/mod.rs
@@ -84,6 +84,7 @@ impl Context {
         let (_s, r) = async_std::sync::channel(1);
         let mut imap = Imap::new(r);
         let mut is_imap_connected = false;
+        let was_configured_before = self.is_configured().await;
 
         while !self.shall_stop_ongoing().await {
             step_counter += 1;
@@ -121,6 +122,15 @@ impl Context {
         }
 
         if let Some(provider) = provider::get_provider_info(&param.addr) {
+            if !was_configured_before {
+                if let Some(config_defaults) = &provider.config_defaults {
+                    for def in config_defaults.iter() {
+                        info!(self, "apply config_defaults {}={}", def.key, def.value);
+                        self.set_config(def.key, Some(def.value)).await?;
+                    }
+                }
+            }
+
             if !provider.after_login_hint.is_empty() {
                 let mut msg = Message::new(Viewtype::Text);
                 msg.text = Some(provider.after_login_hint.to_string());
diff --git a/src/context.rs b/src/context.rs
index 5c554ba5f..414cd8069 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -252,7 +252,11 @@ impl Context {
             .get_raw_config_int(self, "dbversion")
             .await
             .unwrap_or_default();
-
+        let journal_mode = self
+            .sql
+            .query_get_value(self, "PRAGMA journal_mode;", paramsv![])
+            .await
+            .unwrap_or_else(|| "unknown".to_string());
         let e2ee_enabled = self.get_config_int(Config::E2eeEnabled).await;
         let mdns_enabled = self.get_config_int(Config::MdnsEnabled).await;
         let bcc_self = self.get_config_int(Config::BccSelf).await;
@@ -299,6 +303,7 @@ 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("journal_mode", journal_mode);
         res.insert("blobdir", self.get_blobdir().display().to_string());
         res.insert("display_name", displayname.unwrap_or_else(|| unset.into()));
         res.insert(
diff --git a/src/imap/mod.rs b/src/imap/mod.rs
index 6d84cf66a..b53f3cb3b 100644
--- a/src/imap/mod.rs
+++ b/src/imap/mod.rs
@@ -134,7 +134,7 @@ impl async_imap::Authenticator for OAuth2 {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq)]
 enum FolderMeaning {
     Unknown,
     SentObjects,
@@ -1124,7 +1124,8 @@ impl Imap {
 
                 if sentbox_folder.is_none() {
                     if let FolderMeaning::SentObjects = get_folder_meaning(&folder) {
-                        info!(context, "sentbox folder is {:?}", folder);
+                        sentbox_folder = Some(folder);
+                    } else if let FolderMeaning::SentObjects = get_folder_meaning_by_name(&folder) {
                         sentbox_folder = Some(folder);
                     }
                 }
@@ -1133,6 +1134,7 @@ impl Imap {
                     break;
                 }
             }
+            info!(context, "sentbox folder is {:?}", sentbox_folder);
 
             drop(folders);
 
@@ -1258,7 +1260,7 @@ impl Imap {
 // CAVE: if possible, take care not to add a name here that is "sent" in one language
 // but sth. different in others - a hard job.
 fn get_folder_meaning_by_name(folder_name: &Name) -> FolderMeaning {
-    let sent_names = vec!["sent", "sent objects", "gesendet"];
+    let sent_names = vec!["sent", "sentmail", "sent objects", "gesendet"];
     let lower = folder_name.name().to_lowercase();
 
     if sent_names.into_iter().any(|s| s == lower) {
@@ -1269,27 +1271,18 @@ fn get_folder_meaning_by_name(folder_name: &Name) -> FolderMeaning {
 }
 
 fn get_folder_meaning(folder_name: &Name) -> FolderMeaning {
-    if folder_name.attributes().is_empty() {
-        return FolderMeaning::Unknown;
-    }
-
-    let mut res = FolderMeaning::Unknown;
     let special_names = vec!["\\Spam", "\\Trash", "\\Drafts", "\\Junk"];
 
     for attr in folder_name.attributes() {
         if let NameAttribute::Custom(ref label) = attr {
             if special_names.iter().any(|s| *s == label) {
-                res = FolderMeaning::Other;
+                return FolderMeaning::Other;
             } else if label == "\\Sent" {
-                res = FolderMeaning::SentObjects
+                return FolderMeaning::SentObjects;
             }
         }
     }
-
-    match res {
-        FolderMeaning::Unknown => get_folder_meaning_by_name(folder_name),
-        _ => res,
-    }
+    FolderMeaning::Unknown
 }
 
 async fn precheck_imf(
diff --git a/src/provider/data.rs b/src/provider/data.rs
index a33c77ca5..3f5fbb058 100644
--- a/src/provider/data.rs
+++ b/src/provider/data.rs
@@ -18,6 +18,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: STARTTLS, hostname: "newyear.aktivix.org", port: 143, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "newyear.aktivix.org", port: 25, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // aol.md: aol.com
@@ -28,6 +29,7 @@ lazy_static::lazy_static! {
         overview_page: "https://providers.delta.chat/aol",
         server: vec![
         ],
+        config_defaults: None,
     };
 
     // autistici.org.md: autistici.org
@@ -40,6 +42,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "mail.autistici.org", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: SSL, hostname: "smtp.autistici.org", port: 465, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // bluewin.ch.md: bluewin.ch
@@ -52,6 +55,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imaps.bluewin.ch", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: SSL, hostname: "smtpauths.bluewin.ch", port: 465, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // comcast.md: xfinity.com, comcast.net
@@ -73,6 +77,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap.example.com", port: 1337, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "smtp.example.com", port: 1337, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // fastmail.md: fastmail.com
@@ -83,6 +88,7 @@ lazy_static::lazy_static! {
         overview_page: "https://providers.delta.chat/fastmail",
         server: vec![
         ],
+        config_defaults: None,
     };
 
     // freenet.de.md: freenet.de
@@ -95,6 +101,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "mx.freenet.de", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "mx.freenet.de", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // gmail.md: gmail.com, googlemail.com
@@ -107,6 +114,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap.gmail.com", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: SSL, hostname: "smtp.gmail.com", port: 465, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // gmx.net.md: gmx.net, gmx.de, gmx.at, gmx.ch, gmx.org, gmx.eu, gmx.info, gmx.biz, gmx.com
@@ -120,6 +128,7 @@ lazy_static::lazy_static! {
             Server { protocol: SMTP, socket: SSL, hostname: "mail.gmx.net", port: 465, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "mail.gmx.net", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // i.ua.md: i.ua
@@ -135,6 +144,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap.mail.me.com", port: 993, username_pattern: EMAILLOCALPART },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "smtp.mail.me.com", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // kolst.com.md: kolst.com
@@ -159,6 +169,15 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: STARTTLS, hostname: "imap.nauta.cu", port: 143, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "smtp.nauta.cu", port: 25, username_pattern: EMAIL },
         ],
+        config_defaults: Some(vec![
+            ConfigDefault { key: Config::DeleteServerAfter, value: "1" },
+            ConfigDefault { key: Config::BccSelf, value: "0" },
+            ConfigDefault { key: Config::SentboxWatch, value: "0" },
+            ConfigDefault { key: Config::MvboxWatch, value: "0" },
+            ConfigDefault { key: Config::MvboxMove, value: "0" },
+            ConfigDefault { key: Config::E2eeEnabled, value: "0" },
+            ConfigDefault { key: Config::MediaQuality, value: "1" },
+        ]),
     };
 
     // outlook.com.md: hotmail.com, outlook.com, office365.com, outlook.com.tr, live.com
@@ -171,6 +190,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap-mail.outlook.com", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "smtp-mail.outlook.com", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // posteo.md: posteo.de
@@ -183,6 +203,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: STARTTLS, hostname: "posteo.de", port: 143, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "posteo.de", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // protonmail.md: protonmail.com, protonmail.ch
@@ -193,6 +214,7 @@ lazy_static::lazy_static! {
         overview_page: "https://providers.delta.chat/protonmail",
         server: vec![
         ],
+        config_defaults: None,
     };
 
     // riseup.net.md: riseup.net
@@ -201,6 +223,9 @@ lazy_static::lazy_static! {
     // rogers.com.md: rogers.com
     // - skipping provider with status OK and no special things to do
 
+    // systemli.org.md: systemli.org
+    // - skipping provider with status OK and no special things to do
+
     // t-online.md: t-online.de, magenta.de
     static ref P_T_ONLINE: Provider = Provider {
         status: Status::PREPARATION,
@@ -209,6 +234,7 @@ lazy_static::lazy_static! {
         overview_page: "https://providers.delta.chat/t-online",
         server: vec![
         ],
+        config_defaults: None,
     };
 
     // testrun.md: testrun.org
@@ -222,6 +248,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: STARTTLS, hostname: "testrun.org", port: 143, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "testrun.org", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // tiscali.it.md: tiscali.it
@@ -234,6 +261,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap.tiscali.it", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: SSL, hostname: "smtp.tiscali.it", port: 465, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // ukr.net.md: ukr.net
@@ -253,6 +281,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: STARTTLS, hostname: "imap.web.de", port: 143, username_pattern: EMAILLOCALPART },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "smtp.web.de", port: 587, username_pattern: EMAILLOCALPART },
         ],
+        config_defaults: None,
     };
 
     // yahoo.md: yahoo.com, yahoo.de, yahoo.it, yahoo.fr, yahoo.es, yahoo.se, yahoo.co.uk, yahoo.co.nz, yahoo.com.au, yahoo.com.ar, yahoo.com.br, yahoo.com.mx, ymail.com, rocketmail.com, yahoodns.net
@@ -265,6 +294,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap.mail.yahoo.com", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: SSL, hostname: "smtp.mail.yahoo.com", port: 465, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     // yandex.ru.md: yandex.ru, yandex.com
@@ -275,6 +305,7 @@ lazy_static::lazy_static! {
         overview_page: "https://providers.delta.chat/yandex-ru",
         server: vec![
         ],
+        config_defaults: None,
     };
 
     // ziggo.nl.md: ziggo.nl
@@ -287,6 +318,7 @@ lazy_static::lazy_static! {
             Server { protocol: IMAP, socket: SSL, hostname: "imap.ziggo.nl", port: 993, username_pattern: EMAIL },
             Server { protocol: SMTP, socket: STARTTLS, hostname: "smtp.ziggo.nl", port: 587, username_pattern: EMAIL },
         ],
+        config_defaults: None,
     };
 
     pub static ref PROVIDER_DATA: HashMap<&'static str, &'static Provider> = [
diff --git a/src/provider/mod.rs b/src/provider/mod.rs
index 7f7174774..fc414968f 100644
--- a/src/provider/mod.rs
+++ b/src/provider/mod.rs
@@ -2,6 +2,7 @@
 
 mod data;
 
+use crate::config::Config;
 use crate::dc_tools::EmailAddress;
 use crate::provider::data::PROVIDER_DATA;
 
@@ -57,6 +58,12 @@ impl Server {
     }
 }
 
+#[derive(Debug)]
+pub struct ConfigDefault {
+    pub key: Config,
+    pub value: &'static str,
+}
+
 #[derive(Debug)]
 pub struct Provider {
     pub status: Status,
@@ -64,6 +71,7 @@ pub struct Provider {
     pub after_login_hint: &'static str,
     pub overview_page: &'static str,
     pub server: Vec<Server>,
+    pub config_defaults: Option<Vec<ConfigDefault>>,
 }
 
 impl Provider {
diff --git a/src/provider/update.py b/src/provider/update.py
index f0a19db76..eb0a9e02b 100755
--- a/src/provider/update.py
+++ b/src/provider/update.py
@@ -9,6 +9,9 @@ out_all = ""
 out_domains = ""
 domains_dict = {}
 
+def camel(name):
+    words = name.split("_")
+    return "".join(w.capitalize() for i, w in enumerate(words))
 
 def cleanstr(s):
     s = s.strip()
@@ -31,6 +34,18 @@ def file2url(f):
     return "https://providers.delta.chat/" + f
 
 
+def process_config_defaults(data):
+    if not "config_defaults" in data:
+        return "None"
+    defaults = "Some(vec![\n"
+    config_defaults = data.get("config_defaults", "")
+    for key in config_defaults:
+        value = str(config_defaults[key])
+        defaults += "            ConfigDefault { key: Config::" + camel(key) + ", value: \"" + value + "\" },\n"
+    defaults += "        ])"
+    return defaults
+
+
 def process_data(data, file):
     status = data.get("status", "")
     if status != "OK" and status != "PREPARATION" and status != "BROKEN":
@@ -83,6 +98,8 @@ def process_data(data, file):
             server += ("            Server { protocol: " + protocol + ", socket: " + socket + ", hostname: \""
             + hostname + "\", port: " + str(port) + ", username_pattern: " + username_pattern + " },\n")
 
+    config_defaults = process_config_defaults(data)
+
     provider = ""
     before_login_hint = cleanstr(data.get("before_login_hint", ""))
     after_login_hint = cleanstr(data.get("after_login_hint", ""))
@@ -93,6 +110,7 @@ def process_data(data, file):
         provider += "        after_login_hint: \"" + after_login_hint + "\",\n"
         provider += "        overview_page: \"" + file2url(file) + "\",\n"
         provider += "        server: vec![\n" + server + "        ],\n"
+        provider += "        config_defaults: " + config_defaults + ",\n"
         provider += "    };\n\n"
     else:
         raise TypeError("SMTP and IMAP must be specified together or left out both")
@@ -103,7 +121,7 @@ def process_data(data, file):
     # finally, add the provider
     global out_all, out_domains
     out_all += "    // " + file[file.rindex("/")+1:] + ": " + comment.strip(", ") + "\n"
-    if status == "OK" and before_login_hint == "" and after_login_hint == "" and server == "":
+    if status == "OK" and before_login_hint == "" and after_login_hint == "" and server == "" and config_defaults == "None":
         out_all += "    // - skipping provider with status OK and no special things to do\n\n"
     else:
         out_all += provider
diff --git a/src/sql.rs b/src/sql.rs
index 46cf13082..7a772659b 100644
--- a/src/sql.rs
+++ b/src/sql.rs
@@ -5,7 +5,6 @@ use async_std::sync::{Arc, RwLock};
 
 use std::collections::HashSet;
 use std::path::Path;
-use std::time::Duration;
 
 use rusqlite::{Connection, Error as SqlError, OpenFlags};
 use thread_local_object::ThreadLocal;
@@ -703,18 +702,13 @@ async fn open(
         open_flags.insert(OpenFlags::SQLITE_OPEN_READ_WRITE);
         open_flags.insert(OpenFlags::SQLITE_OPEN_CREATE);
     }
+
+    // this actually creates min_idle database handles just now.
+    // therefore, with_init() must not try to modify the database as otherwise
+    // we easily get busy-errors (eg. table-creation, journal_mode etc. should be done on only one handle)
     let mgr = r2d2_sqlite::SqliteConnectionManager::file(dbfile.as_ref())
         .with_flags(open_flags)
         .with_init(|c| {
-            // Only one process can make changes to the database at one time.
-            // busy_timeout defines, that if a second process wants write access,
-            // this second process will wait some milliseconds
-            // and try over until it gets write access or the given timeout is elapsed.
-            // If the second process does not get write access within the given timeout,
-            // sqlite3_step() will return the error SQLITE_BUSY.
-            // (without a busy_timeout, sqlite3_step() would return SQLITE_BUSY _at once_)
-            c.busy_timeout(Duration::from_secs(10))?;
-
             c.execute_batch("PRAGMA secure_delete=on;")?;
             Ok(())
         });
@@ -730,6 +724,15 @@ async fn open(
     }
 
     if !readonly {
+        // journal_mode is persisted, it is sufficient to change it only for one handle.
+        // (nb: execute() always returns errors for this PRAGMA call, just discard it.
+        // but even if execute() would handle errors more gracefully, we should continue on errors -
+        // systems might not be able to handle WAL, in which case the standard-journal is used.
+        // that may be not optimal, but better than not working at all :)
+        sql.execute("PRAGMA journal_mode=WAL;", paramsv![])
+            .await
+            .ok();
+
         let mut exists_before_update = false;
         let mut dbversion_before_update: i32 = 0;
         /* Init tables to dbversion=0 */