LONNIEHB While the idea is a great one - I'm having issues with the app. If I close mail and leave manilamail running after about 3 seconds - manilamail opens my mail.app back up. I tested it on 2 computers and it does it on both. If I don't have manilamail running, mail.app works fine on close. Small issue, but it's enough to make me uninstall manilamail.
(Version 1.0)