Phishing detector, Spell check as you type, RSS integration, global inbox, theme manager...
New in v2.0.x:
Enhanced tools for organizing and managing e-mail (custom folder pane views,
message tagging, tabbed messages, etc.), improved Bayesian-based algorithm for fighting junk mail, improved New Mail alerts, more informative folder summary pop-ups; various other enhancements, security patches, and bug fixes for earlier releases; Release Notes - Last Updated: 05.02.08 (v2.0.0.14)
Upgrade Meter:4
New in v1.5:
Spell check as you type feature, built-in phishing detector to help protect users against email scams, automated update to streamline product upgrades, improved updating extensions process, podcasting and other RSS Improvements, integration with server side spam filtering, Kerberos Authentication, auto save as draft for mail composition, many security enhancements, various other enhancements and fixes for earlier releases; Release Notes - Last Updated: 01.12.05 Upgrade Meter:5
New in v1.0.7: Various bug fixes, including one for a return receipt regression introduced in version 1.0.2 (bug 289091), and security patches, including one for the Linux command line URL parsing security flaw (bug 307185); Release Notes - Last Updated: 09.30.05 Upgrade Meter:3
New in v1.1 Alpha 1: Phishing Detector (warns of possible phishing attack e-mails), Spell As You Type feature, support for deleting and stripping attachments from e-mail, improved RSS Support (including podcasting, a new feed subscription UI, and OPML import - with export coming in Alpha 2), improved spell check engine, offline improvements, TLS support for POP3, search and filter enhancements, various other improvements and bug fixes; Release Notes - Last Updated: 06.03.05 Upgrade Meter:3
New in v1.0 Official: Adaptive Junk Mail controls, RSS integration, saved search folders, global inbox support, message grouping, privacy protection, default themes have both been updated with "new and improved" artwork, numerous bug fixes; Release Notes - Last Updated: 12.07.04 Upgrade Meter:5
New in v0.9: Saved search folders; ability to group messages in a folder by attributes such as date, sender, priority or a custom label; improvements to Thunderbird's Global Inbox support for POP3 users; various other enhancements and bug fixes; Release Notes - Last Updated: 11.04.04 Upgrade Meter:2
New in v0.8:
Built-in RSS reader, global inbox (combine all POP3 accounts into a single global inbox), comprehensive data migration (from Mozilla 1.7 Suite, Outlook Express, Outlook, and Eudora), improved quick search, various security and performance improvements and bug fixes; Release Notes - Last Updated: 09.14.04 Upgrade Meter:4
New in v0.7:
Built-in extension (plug-ins) and theme managers, new profile manager, crash analysis tools, color quoting for quoted message parts, new user interface for viewing vCards; Release Notes Upgrade Meter:4
Pros: Integrated spam filter, helpful Themes and Extensions managers, extensive sorting and filtering capabilities, imports mail and settings from other mail clients
Cons: Doesn't import message rules/filters from Outlook/Outlook Express, feature-set on par with Outlook Express but trails Microsoft Outlook
