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relaydb is a mail header analyzer that builds a database of IP addresses
either known as legitimate senders or spammers.
relaydb doesn't itself classify mails as legitimate or spam, that deci
sion needs to be reached through other means. Neither does relaydb block
spam itself. It merely provides a list of IP addresses to block through
other means, like spamd(8) and pf(4).
relaydb reads a single mail from stdin, analyzes the Received: header
lines and updates blacklist and whitelist counters for each IP address.
WWW: http://www.benzedrine.cx/relaydb.html
Initial version submitted to dhartmei@ who came back to me with this.
