Deleting mail doesn't work with IMAP

[titanlab]

What steps will reproduce the problem?

1. Right click over a message in any folder and click Delete. Message gets the trash icon in the Status column.
2. Rescan the folder or Fech mail.
3. The "deleted" message is duplicated, now one has the trash icon and the other doesn't.
4. Close and restart SimpleMail. The "deleted" messages and their duplicates are still there.

What is the expected output? What do you see instead?

Deleted messages should go immediately to the trash folder. Or be deleted at exit if "Cleanup deleted folder on exit" is checked in the configuration options.

What version of SimpleMail and MorphOS are you using?

Simplemail 1.1 beta
MorphOS 3.7

Please provide any additional information below.

Deleting the messages afterward using another system or from the web, doesn't make then disapear from SimpleMail. They are still duplicated and one of each duplicated message marked with the trash icon. The only way I found to work is deleting the messages through Ambient or a file manager in the local imap folders.

[sba1]

Is this maybe fixed with some of your latest fixes? (e.g. #11)