Imapsync: Migrate or back up IMAP accounts

Personally a big fan of Rick Sanders IMAP Tools set here http://www.athensfbc.com/imap_tools/details.html

It's only $35 too for a lifetime of updates.

I love imapsync to death...I'm just not sure why you posted it now. >.>

I needed to fix my problem of moving mail from one server to another and found this nice small tool. Decided to share :) What else I can say?

You may also want to look at offlineimap.