Spammer is an anti-spam mail filter for Sendmail
and Postfix. It uses libmilter to communicate with
the MTA. Spammer checks client IP addresses as
well as all IP addresses in the "Received: "
headers against a DNSBL database.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.