you are right, the problem was with IMAP... The ticket we raised was #6828. After applying hotfixes (that mailenable said us to apply, some of them beta) the service kept crashing and some new problems appeared (blank mails, etc), so we decided not to experiment more on the mail server (some users c...

We had a similar problem after aplying some october hotfixes... The service continued crashing and had some _new_ problems after the update... raising a ticked didn't help nothing...

And we are afraid to upgrade to a new version, too...