An independent implementation of the RFC 4408 Sender Policy Framework (SPF-Classic).

Provide an interface to the popular open source Clam Anti-Virus scanner.

Provides a means by which client connection and envelope details and/or message headers and content can be filtered using shell commands or scripts. Intended as a way to implement quick & dirty content filtering solutions when there is no other suitable milter available.

A “call-forward” milter for mail gateways to verify that mail recipients exist on an authoritative mail store before the gateway accepts the message.

Grey listing keeps track of tuples consisting of the connecting IP, sender's envelope, and recipient's envelope. If a tuple, does not exist in the cache, then a new entry is added and kept until it expires and the message is temporarily rejected.

Fast lightweight SPF mail filter for sendmail

Block connections from remote sites that are sending spam, thus reducing load on your mail server.

smf-spamd: Smart Sendmail Filters

Limit the number of messages by connecting client IP, sender, or recipient.

Extracts URLs from a mail message and checks it against one or more URI blacklists. Can also verify if any link is bad or broken.

Bachelor thesis implementation of the Sendmail extension MUNI-Milter

An interface to the popular open source SpamAssasssin mail analysis tool, which returns a score based on a comprehensive set of patterns and Bayesian checks.

Library of supporting functions, APIs, and tools for SnertSoft BarricadeMX and milters.

An interface to the popular open source SpamAssasssin mail analysis tool, which returns a score based on a comprehensive set of patterns and Bayesian checks.

Limit the number of messages by connecting client IP, sender, or recipient.

Grey listing is an anti-spam technique that keeps track of tuples consisting of the connecting IP, sender's envelope, and recipient's envelope. If a tuple, does not exist in the cache, then a new entry is added and kept until it expires and the message is temporarily rejected.

An independent implementation of the RFC 4408 Sender Policy Framework (SPF-Classic).

Extracts URLs from a mail message and checks it against one or more URI blacklists.

Provides a means by which client connection and envelope details and/or message headers and content can be filtered using shell commands or scripts. Intended as a way to implement quick & dirty content filtering solutions when there is no other suitable milter available.

A “call-forward” milter for mail gateways to verify that mail recipients exist on an authoritative mail store before the gateway accepts the message.