Mozilla Thunderbird is secure and very functional email client and RSS feed reader. It lets you handle mail efficiently and with style, and Thunderbird filters away junk mail too. It offers a pretty and streamlined interface to a very powerful email package. Not only is Thunderbird a secure email client, a sophisticated and very well integrated Bayesian spam filter knocks out most junk mail (after some training). Combine these two aspects of Thunderbird, and you get a sensible feature that automatically sanitizes (potentially dangerous) HTML code and turns off remote images for spam or anything else – worms, viruses – you classify as bad mail. Though not perfect, a scam sensor detects tactics commonly used to fool users. Thunderbird is just as good for good mail as it is against the bad. Flexible views, free-form tags and powerful filters, search and virtual folders (which also work fine with IMAP accounts and across email accounts) make it a snap to handle large amounts of mail
