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