Bogofilter 0.2 released
Bogofilter is a Bayesian spam filter. In its normal mode of operation, it takes an email message or other text on standard input, does a statistical check against lists of "good" and "bad" words, and returns a status code indicating whether or not the message is spam. Bogofilter is designed with fast algorithms (including the Judy fast-associative-array technique), coded directly in C, and tuned for speed, so it can be used for production by sites that process a lot of mail."
