Mutt is awesome. It’s a super hardcore console email client that I’ve been using for my personal mail at work. Not that I’m trying to be sneaky, but it keeps the personal mail out of the way in a terminal, and stops me getting distracted by it all the time. It supports IMAP nicely and has an insane level of customisation. I’ve got it colouring my inbox mails differently depending on the status of them and what their subjects/senders are. Its pretty neat. It also does threading, threading! I can’t live without it now and it drives me insane when I see people reading their mail in the wrong order through something like hotmail.