Subject: Re: greylisting for postfix
To: None <firstname.lastname@example.org>
From: Jeremy C. Reed <email@example.com>
Date: 11/01/2006 17:30:52
> Another alternative is to use pkgsrc/mail/spamd. I use it with PF (and I
> am sure it could be modified to work with ipf too).
> It is not integrated with the MTA though. But in combination with the
> spamd-setup it can use custom blacklists too.
> Also, spamd greylist solution delays mails to third acceptable attempt
> (where others often will work on second).
I forgot to mention (since you asked for docs). I wrote a chapter about
spamd for The OpenBSD PF Packet Filter Book (now available at
www.Amazon.co.uk). Feel free to email me for the chapter if interested.