I recently switched from Postbox to Mail.app, in Lion, to manage my work email. I can’t say exactly why, except perhaps that I’m always trying new software in hopes of finding an improvement.
Overall, Mail.app has felt like an improvement. But one feature I missed sorely was the ability to hit a few keys and move a message into another folder. I file everything, and having to click and drag a message every time to do that was getting quickly irritating.
To solve this problem, I loaded up the relatively newly installed Keyboard Maestro and made a few macros like this:
It’s simple and efficient, and now gives Mail.app the one feature it was lacking for me.