New name, Trust Rating, Spamfighting Statistics...
New in v5.3.4 (Outlook Edition) / v3.2.2 (Outlook Express Edition): New fingerprinting algorithm (v5.2.2/3.2.2); fix for corrupted auto-update file that caused Cloudmark Desktop to crash (v5.2.1/3.2.1); Windows Vista support for Outlook 2007 edition, various minor enhancements and bug fixes for v5.x/v3.x; Release Notes - Last Updated: 05.07.08 Upgrade Meter:2
New in v5.0 (Outlook Edition) / v3.0 (Outlook Express Edition): Split drop-down Block Spam button (takes up less space), hot keys for block and unblock actions, first-use message and clarified error messages, phishing stats in Cloudmark signature (Outlook edition only), new tutorial and online help, hideable rating and statistics buttons, various performance improvements and fixes for earlier releases; Release Notes - Last Updated: 11.22.06 Upgrade Meter:4
Pros: Vast community of users working together to identify and stop spam, separate editions for Outlook and Outlook Express, highly effective and accurate spam protection
Cons: Requires Outlook or Outlook Express in order to run, requires repeated contact with SpamNet server (so if a SpamNet server is down, you won't be able to access your mail), depends on users making the effort to submit feedback in order to keep the system effective, $39.95 per year subscription fee makes it more costly than comparable flat-fee anti-spam clients
