Mozilla Messaging has reached the second milestone in Thunderbird 3 development (code named Shredder) with the release of Alpha 2.
Among the 264 bug fixes since Alpha 1 (released on May), Alpha 2 can import mail and settings from Mac OS Mail.app, as well as SSL and port settings from Outlook Express configuration on Windows. Faster IMAP delete and undo operations. A polished theme and use of the internal address book by default, provides better Mac OS X integration. An option to include only the selected text on replies should become a valuable time saver, like the new compact (purge) button available in the Customize Toolbar dialog.
Thunderbird 3 is based on the same Mozilla 1.9 platform code base as Firefox 3, so Windows versions previous to Windows 2000 are no longer supported. Tiger (10.4) is the minimum requirement for Mac OS X platforms.