Hello, I've done a preliminary port of policyd 2.0.10 aka 'cluebringer'. This is a daemon that you can delegate your Postfix's policy decisions to, plus a web user interface to configure it.
Upstream is here: http://www.policyd.org/ Grab it here: http://download.oeko.net/sw/obsd/local/policyd-port.tbz and send me your feedback, please. Thank you! Kind regards, --Toni++
