Received-SPF: pass
 receiver=mail.stalker.com; client-ip=216.211.26.160; envelope-from=jwark@tbaytel.net
Message-ID: <4A43C014.1030602@tbaytel.net>
Date: Thu, 25 Jun 2009 14:21:08 -0400
From: Jeff Wark <jwark@tbaytel.net>
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To: CommuniGate Pro Discussions <CGatePro@mail.stalker.com>
Subject: DUL/PBL and other policy block lists
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We currently have our dynamic IP address blocks listed with spamhaus [through 
their PBL] and with MAPS [in their DUL].

We have a customer sending mail through our server to another 
recipient...pretty standard stuff.  Here is what my logs are saying:

*our server getting the message*
2009-06-25_10-00.log:10:30:47.981 2 SMTPI-269182([216.26.223.110]) [2612154] 
received, 4518 bytes
2009-06-25_10-00.log:10:30:47.981 4 SMTPI-269182([216.26.223.110]) rsp: 250 
2612154 message accepted for delivery

*our server sending the message*
2009-06-25_10-00.log:10:30:48.268 4 SMTP-015270(on.sja.ca) [2612154] sending
2009-06-25_10-00.log:10:30:49.060 1 SMTP-015270(on.sja.ca) [2612154] message 
body rejected, got:554 mail from 216.26.223.110 refused, see 
http://www.spamhaus.org

It appears that the server on.sja.ca is doing some sort of 'deep scanning' of 
the received headers and rejecting an email if the email in question has 
originated on any computer with an IP address listed in a blacklist/policy 
list somewhere.  This seems to completely defeat the usefulness of these 
lists.  The IP is not on any other blacklist at www.spamhaus.org, only the PBL.

Has anyone else experienced this recently?  It happened with another server a 
few weeks ago.  These people must be rejecting legitimate email all over the 
place if they will not accept an email that has touched a dynamic IP address.

-- 
Jeff Wark
TBayTel Internet
807-625-3041