Blackhole Spam/Virus filter [222 Kb]

http://the.groovy.org/source/BlackHole.tar.gz
http://the.groovy.org/blackhole.shtml

“Blackhole Spam/Virus Filter provides multiple spam blocking techniques, “white list” features, and flexible storage of blocked email. Sendmail, Qmail, and Postfix are supported, and the email storage type can be mbox or maildir for Postfix and Sendmail. Configuration can be done through the bhconf utility. Blackhole can log through Syslog, MySQL DB, or stderr/stdout methods. It can check for bad email addresses/domains, bad email relays/networks, bad subject lines, allowed charsets, ASCII sets greater than 128 (non-latin charsets), RBL lists, Razor, the SpamAssassin body check/scoring system, custom body checking phrases, sender DNS, and relay reverse DNS. It tags spam and viruses with X-BlackHole-* headers that explain why the message was blocked. Each check can have separate actions if the message matches, so if one is blocked as porn. it could be bounced/deleted/tagged differently than the rest. Custom header and body checks give you full control of every aspect of the emails contents, and the scoring/actions system is flexible. allowing many ways of setting up the checks to give each unique consequences.”