diff --git a/src/dc_job.rs b/src/dc_job.rs
index 065fde15d..f69c3ca87 100644
--- a/src/dc_job.rs
+++ b/src/dc_job.rs
@@ -1180,9 +1180,16 @@ pub unsafe fn dc_job_send_msg(context: &Context, msg_id: uint32_t) -> libc::c_in
         /* create message */
         if 0 == dc_mimefactory_render(&mut mimefactory) {
             dc_set_msg_failed(context, msg_id, mimefactory.error);
-        } else if 0 != dc_param_get_int((*mimefactory.msg).param, 'c' as i32, 0i32)
+        } else if 0 != dc_param_get_int((*mimefactory.msg).param, 'c' as i32, 0)
             && 0 == mimefactory.out_encrypted
         {
+            warn!(
+                context,
+                0,
+                "e2e encryption unavailable {} - {}",
+                msg_id,
+                dc_param_get_int((*mimefactory.msg).param, 'c' as i32, 0),
+            );
             dc_set_msg_failed(
                 context,
                 msg_id,
diff --git a/src/dc_receive_imf.rs b/src/dc_receive_imf.rs
index 08181d78c..0da0d3429 100644
--- a/src/dc_receive_imf.rs
+++ b/src/dc_receive_imf.rs
@@ -541,12 +541,12 @@ pub unsafe fn dc_receive_imf(
                                                 (*part).bytes,
                                                 hidden,
                                                 if 0 != save_mime_headers {
-                                                    Some(as_str(imf_raw_not_terminated))
+                                                    Some(to_string(imf_raw_not_terminated))
                                                 } else {
                                                     None
                                                 },
-                                                as_str(mime_in_reply_to),
-                                                as_str(mime_references),
+                                                to_string(mime_in_reply_to),
+                                                to_string(mime_references),
                                             ]);
 
                                             if res.is_err() {