Why can't I delete mail or move mail to a folder. This started after mail host microsoft update to their exchange server
We recently moved our mail from an in-house server to an outside hosting service. It was working well until we returned after Christmas. The mail host explained that they had received a Microsoft update to their hosting servers. Now we get an "ERROR 12" code and cannot delete mail or move mail on any of the IMAP folders. I tested the theory on Outlook and the mail deleted fine and was able to move to folders and it synchronized without issue. How can we fix this on Thunderbird?
Opaite Mbohovái (2)
Outlook connects to the server using emapi Thunderbird uses imap. So a comparison is nothing more than a waste, or did you explicitly set up an imap account in Outlook?
Please create an IMAP log https://wiki.mozilla.org/MailNews:Logging
I did find an old bug that indicates fasthost had incorrectly configured servers (is that your provider?) with a workaround.
It is difficult to diagnose exchange imap issues because they do not use any of the standard error codes or messages. But a log should at least provide information on the command the server does not like and that makes a good starting point.
Yes I did set up outlook with IMAP settings. No that isn't the mail host. However, I was told that this is likely due to a recent Microsoft update to mail Exchange servers. Not sure if this is the case.