I've got a couple domains and have a different email account on each one. I set up Postfix and Courier-IMAP on my server, and I'm able to deliver and check emails fine. The problem is that my client only seems to be able to have one IMAP account active at any given point. I use Mail for OS X, and have my two accounts set up to check for mail every 5 minutes or so. When one IMAP account is active, the other says it has a problem, there's a data read error from the server. Take the first one offline, and the second one works fine. I look in the mail logs, and there's nothing strange, it just shows the LOGIN and LOGOUTs. Is this a limitation in IMAP, so I'd have to go with POP, or do I just have something misconfigured?
