I'm having some odd issues with Mail and my IMAP account. Last week we had an issue with our mail server and since it is fixed, I cannot download any new email in Mail. I know that my IMAP account is working properly because I can access it with another client, but I cannot access my email from either of my Macs running Mail.
In the activity window, it always shows two things:
[INBOX - IMAP] Opening mailbox...
Fetching headers...
and
[IMAP] Communicating with server
[INBOX] Fetching
Neither ever makes progress though. Any idea what is wrong, and how I can fix it?