I haven't been able to find a similar case through searching, but I am having an unusual mail problem. Starting with mail from October 3rd, my received mail is dropping into the outbox one at a time, and mail says it can't send it through mailserver null. Now it's moved onto October 4th. Basically every time I delete a message in the outbox, move away and come back, there's a new message in the outbox that was one that I received from someone. There is never more than one. Does anyone know what could be causing this? I am using IMAP with Gmail and Google Apps. Both accounts contribute to this issue.
Ideas?