I've started using mutt as my primary email client, but quickly got frustrated that it doesn't show notifications when I receive new emails. So, I wrote a small Go application that uses IMAP IDLE (push) and OSD style notifications to notify you when you receive new emails. It puts an icon in your system tray as well so you can easily see if you've got new email with a glance.It's here: https://github.com/jonhoo/hasmail
Let me know what you think!