mschiff@gentoo.org Marc Schiffbauer info@postfwd.org Jan Peter Kessler http://www.postfwd.org/postfwd2.CHANGELOG postfwd (short for Postfix Firewall Daemon) is a Postfix policy server that is written in Perl. It allows to define flexible and complex rules to block access to the mail system before the actual message has been accepted. The ruleset configuration supports features like scoring, grouping, date and time based dependencies together with DNSBL lookups and policy delegation (e.g. postgrey).