diff --git a/examples/repl/cmdline.rs b/examples/repl/cmdline.rs
index 9826b959b..9f730fd45 100644
--- a/examples/repl/cmdline.rs
+++ b/examples/repl/cmdline.rs
@@ -96,16 +96,7 @@ pub unsafe fn dc_reset_tables(context: &Context, bits: i32) -> i32 {
 fn dc_poke_eml_file(context: &Context, filename: impl AsRef<Path>) -> Result<(), Error> {
     let data = dc_read_file(context, filename)?;
 
-    unsafe {
-        dc_receive_imf(
-            context,
-            data.as_ptr() as *const _,
-            data.len(),
-            "import",
-            0,
-            0,
-        )
-    };
+    unsafe { dc_receive_imf(context, &data, "import", 0, 0) };
     Ok(())
 }
 
diff --git a/src/dc_receive_imf.rs b/src/dc_receive_imf.rs
index 16be9aaa9..e52c1364d 100644
--- a/src/dc_receive_imf.rs
+++ b/src/dc_receive_imf.rs
@@ -39,8 +39,7 @@ enum CreateEvent {
 /// Receive a message and add it to the database.
 pub unsafe fn dc_receive_imf(
     context: &Context,
-    imf_raw_not_terminated: *const libc::c_char,
-    imf_raw_bytes: libc::size_t,
+    imf_raw: &[u8],
     server_folder: impl AsRef<str>,
     server_uid: u32,
     flags: u32,
@@ -61,9 +60,8 @@ pub unsafe fn dc_receive_imf(
     // we use mailmime_parse() through dc_mimeparser (both call mailimf_struct_multiple_parse()
     // somewhen, I did not found out anything that speaks against this approach yet)
 
-    let body = std::slice::from_raw_parts(imf_raw_not_terminated as *const u8, imf_raw_bytes);
     let mut mime_parser = MimeParser::new(context);
-    mime_parser.parse(body);
+    mime_parser.parse(imf_raw);
 
     if mime_parser.header.is_empty() {
         // Error - even adding an empty record won't help as we do not know the message ID
@@ -204,8 +202,7 @@ pub unsafe fn dc_receive_imf(
         if let Err(err) = add_parts(
             context,
             &mut mime_parser,
-            imf_raw_not_terminated,
-            imf_raw_bytes,
+            imf_raw,
             incoming,
             &mut incoming_origin,
             server_folder.as_ref(),
@@ -292,8 +289,7 @@ pub unsafe fn dc_receive_imf(
 unsafe fn add_parts(
     context: &Context,
     mut mime_parser: &mut MimeParser,
-    imf_raw_not_terminated: *const libc::c_char,
-    imf_raw_bytes: libc::size_t,
+    imf_raw: &[u8],
     incoming: i32,
     incoming_origin: &mut Origin,
     server_folder: impl AsRef<str>,
@@ -683,10 +679,7 @@ unsafe fn add_parts(
                         part.bytes,
                         *hidden,
                         if save_mime_headers {
-                            Some(String::from_utf8_lossy(std::slice::from_raw_parts(
-                                imf_raw_not_terminated as *const u8,
-                                imf_raw_bytes,
-                            )))
+                            Some(String::from_utf8_lossy(imf_raw))
                         } else {
                             None
                         },
diff --git a/src/imap.rs b/src/imap.rs
index 2fde8d25f..7ce12d021 100644
--- a/src/imap.rs
+++ b/src/imap.rs
@@ -953,14 +953,7 @@ impl Imap {
             if !is_deleted && msg.body().is_some() {
                 let body = msg.body().unwrap();
                 unsafe {
-                    dc_receive_imf(
-                        context,
-                        body.as_ptr() as *const libc::c_char,
-                        body.len(),
-                        folder.as_ref(),
-                        server_uid,
-                        flags as u32,
-                    );
+                    dc_receive_imf(context, &body, folder.as_ref(), server_uid, flags as u32);
                 }
             }
         }