Mozilla Thunderbird is a heavy weight email client from the makers of popular browser Firefox, the Mozilla Group. The release marks the ever growing maturity of the product, and comes with many new features.
Windows Installer - Thunderbird now comes with an installer for Windows making it easier than ever to start using Thunderbird!
New Default Theme on Mac OS X - The new Pinstripe theme fits in with the look of Mac OS X. Also for Mac OS X users, you now get new mail notification in the system dock - v cool!
Improved Junk Mail Controls - The algorithm for the adaptive junk mail controls has been heavily redesigned to learn faster and catch more spam. Also, mail filters can now mark messages as junk.
New Brand Identity - To be consistent with the Mozilla Foudation's goal of brand identity, Thunderbird has a new logo and supporting artwork thanks to the fine work of the Mozilla Visual Identity team.
Improved IMAP support - IMAP users can now benefit from support for the IMAP IDLE command which allows the mail server to push notifications such as new mail arriving as soon as it arrives.
Improved News support - Thunderbird supports server-wide news filters that apply to all newsgroups on a server.
Improved security - Thunderbird includes Secure Password Authentication using a new cross-platform NTLM authentication mechanism for IMAP, POP3 and SMTP.
Better Offline support - Offline support is an optional download component in the Windows installer and is no longer a separately-downloaded extension.
An excellent release with lots of new features- well worth a test!