Milter-greylist

Rick Knight wrote:
 > Here are the Received: and X-Greylist: headers from another message and 
 > greylist.conf is attached. As I said, just about everything is passing 
 > through without a delay.
 > 
 > Rceived: from 160-226-dialup.haptend.com (knight-fw.rlknight.com 
 > [172.16.88.2])    by mail.rlknight.com (8.14.2/8.14.2) with SMTP id 
 > n6DFxUJI017709    for <rick@...>; Mon, 13 Jul 2009 08:59:31 -0700
 > 
 > X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0.1 
 > (mail.rlknight.com [172.16.88.3]); Mon, 13 Jul 2009 08:59:36 -0700 (PDT)

It seems that your firewall (.2) is acting as an SMTP
gateway (as opposed to only routing the IP packets).

So your mailserver only sees the firewall as the
connecting MTA, not the real remote MTA.  Under these
circumstances greylisting doesn't work correctly,
because greylisting depends on being able to see the
remote MTA's address.

You will either have to reconfigure your firewall to
route SMTP connections through to your mailserver.
Or run greylisting on the firewall, if possible.

Best regards
   Oliver

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