blq is a Perl script that queries email lists that identify potential sources of spam and email abuse to determine if a particular host is listed.
cats2procmailrc reads a human friendly mail category description file and emits a matching procmail recipe to implement it. The intent it to have an extremely succinct file of easily editable one line rules, generally of the form.
Despam is a mail scanning program in conjuction with procmail to weed out junk e-mail. It reads a data file describing: allowed addresses strings/regexps, suspicious addresses strings/regexps, denied addresses strings/regexps, interesting buzz strings/regexps in subject, and also checks an Email address file.
IMAP Spam Begone
isbg makes it easy to scan an IMAP inbox for spam using SpamAssassin and get your spam moved to another folder.
MailChariot takes your incoming email (for example from /var/spool/mail), filter it through a spam filter, and put it into a spam mailbox
Mailspammer is a set of scripts for managing smaller mailing lists without requiring administrator rights. As long as you can setup an e-mail alias, or have your admin setup an e-mail alias for you, Mailspammer will work.
This is yet another spam-labeling script. This one is written in Perl. This script is based on checking the various RBLs and adding a header if any of the relays matches on any of the RBLs. Unlike many other such scripts, notespam checks every relay in every Received: header, and has a configurable list of RBLs that does not involve modifying the source code.
Scam-backscatter prevents backscatter (accept and bounce) on mail servers which don't host mailboxes locally. It validates mailboxes by verifying the recipient addresses hosted on a different mail server.
spam.pl is a perl script that extracts all relaying hosts from the headers of a spam mail and sends a complaint mail to all the responsible mail server administrators.
SpamCruncher is a small Perl-Script, that uses the SpamAssassin-engine to identify spam on remote POP3- or IMAP-Servers. So you only need SpamCruncher if your E-Mail host doesn't offer you free anti-spam services.
Spamcup is a tool for automating Spamcop reports. The script does essentially the same that you would do when you report spam with your browser in Spamcop.net.
spamhammerd is a simple perl script to help combat spammers. spammers are generally sloppy, and tend to blast every address they know of on your mail server at the same time, even if they don't exist.
The Spaminator is a collection of a PHP script, a PERL script, and a simple MySQL database. It grew out of a simple need: managing the access DB within Sendmail 8.x in order to block all of those friggin' spam addresses!