Death2Spam is a true Bayesian E-mail filter. Featuring advanced heuristics and adaptive technology, D2S is available as a proxy service or as a local install. As a server-based solution, there is nothing to install on any client machine. Death2Spam states that it is 95% accurate out-of-the-box and can exceed 99% after about two weeks.

Death2Spam allows users to re-classify messages and uses this feedback to maintain its accuracy. D2S will rate each message as Good, Unsure or Spam. The D2S user administration area provides the ability to re-classify Good messages as Spam and vice versa. This area, accessed via a Web browser, also provides statistics on its accuracy.

Every message scanned by Death2Spam receives a score (0-100). The higher the score, the more likely it is to be Spam. Instead of simply scanning for key words, D2S derives the score from looking at numerous component characteristics within the message, including attachments, spelling accuracy, headers, sender information, HTML code, included URLs, etc. It reviews several dozen aspects of each E-mail when assigning a score.

By design, D2S errs on the side of caution, meaning if a message is not easily labeled as Spam, it will be delivered.

Death2Spam does not rely on Black Lists, key words or Challenge/Response techniques. In fact, once installed, Death2Spam requires virtually no Network Administrator interaction.