★★★★★   (MacFormat Choice) “The perfect Add-on for keyboard-oriented Mail users drowning in email, July 2009 MacFormat.co.uk

For the true power Mail user, Mail Act-On is the ultimate way to cut to the chase and speed up and declutter your Mail messages  - TechRadar, Aug 2, 2009

Whereas the first version knocked my socks off, this new version also launders my socks, folds them, tucks them neatly into my sock drawer, and gives me a pedicure. - Joe Kissell, TidBits, October 19, 2008

If you find processing e-mail tedious, this application is a must-have. Once you set up your rules with Mail Act-On, you will receive immediate dividends of saved time and increased productivity. MacSparky, November 15, 2008

★★★★½   “... Mail Act-On is a wonderful Mac OS X Mail plug-in that saves you time and makes your mail handling better, email.about.com