Please describe the problem:
Under some conditions, Evolution does not save sent emails in the Sent email folder. 
This seems to happen nearly always when clicking onto an email address in an email in your Inbox. Or replying to an email in your Inbox.
When replying to emails in other folders this seems to work fine though.


Steps to reproduce:
1. compose an email by clicking on an email address in your Inbox
2. sent the email
3. check the Sent email folder after the email was sent


Actual results:
The email that was just sent is not listed there.

Expected results:
All sent emails should always be stored in the Sent email folder.

Does this happen every time?
Nearly every time

Other information:
A bit more about my setup: I am using IMAP and changed the Sent folder to be stored in the IMAP account as well. I also sign my emails with GPG.