Postbox is a favored alternate email client among the TUAW staff and version 2.5 was just released with a number of updates.
This includes Postbox now running in 64-bit mode along with a new theme, interface and icon set that does much to make it look similar to the built-in Mail app, but retain Postbox's distinct style. Double-row vertical thread view is now supported along with a streamlined message view. In addition to all of this is a major price reducti
