MailCorral is a robust, high-performance
virus/spam filter program that runs as part of
sendmail using the milter interface. It handles
all currently known malicious attachment
types including HTML. It can be left running
unattended, removing harmful attachments
and notifying recipients by inserting text into
processed messages. A backup copy of the
original message is also kept for a fixed length
of time. Spam identification is accomplished
through connections to popular spam
recognition packages.
