May 10, 2007 - Razor-agents 2.84 released!
The release of Vipul's Razor v2.84 is now available for public download. The software is comprised of two source packages, razor-agents and razor-agents-sdk, that can be downloaded by following these links:
Here's a complete list of new features in Razor v2.
What is Vipul's Razor?
Vipul's Razor is a distributed, collaborative, spam detection and filtering network. Through user contribution, Razor establishes a distributed and constantly updating catalogue of spam in propagation that is consulted by email clients to filter out known spam. Detection is done with statistical and randomized signatures that efficiently spot mutating spam content. User input is validated through reputation assignments based on consensus on report and revoke assertions which in turn is used for computing confidence values associated with individual signatures.