Well this is odd... after a little over 24 hours of functioning properly, my blackberry suddenly stopped sending e-mails on the first attempt again. Hitting "resend" would always work.
Yet again, logging into the blackberry web interface, deleting the account and recreating it fixed the problem.
What's up with that? Sending an e-mail results in "Invalid error from server". Immediately hitting resend sends it just fine. I've watched the Cyrus IMAP server logs and found something interesting...
When it stops working, on the first attempt cyrus shows "login: localhost" when I try to send a mail, then it fails.
When it works (and on a "resend") it shows "login: bda356c.bis.na.blackberry.com"
I'm stumped as to how "localhost" could even happen...
