I am experiencing temporary email problems due to major migrations back and forward. I have attempted to move all accounts on the home server from mbox to Maildir and still do have some troubles with Courier IMAP. So far all incoming emails should end up where they were supposed to. Reading them, though, is a totally another story.
Hopefully, I will sort everything out within running Saturday. Sorry for any inconvenience (who can spell it better at 5:30am?) caused.