IMAP error with Outlook mail box

Hi. This has been reported earlier but the topic is closed from what I can tell.

The error is reproducible. There is no mail item in outbox. Adding a mail to outbox folder and deleting it thereafter doesn’t help but changes the reported item no. (id changed from 2 to 83).
This only happens with Outlook/MS mail server. All other fine.

Happy to produce logfiles if needed