X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] Return-Path: Received: from ciao.gmane.org ([80.91.229.2] verified) by mail.stalker.com (CommuniGate Pro SMTP 5.2.14) with ESMTPS id 54221808 for CGatePro@mail.stalker.com; Fri, 26 Jun 2009 01:12:17 -0700 Received-SPF: pass receiver=mail.stalker.com; client-ip=80.91.229.2; envelope-from=gmcg-CGatePro@m.gmane.org Received: from list by ciao.gmane.org with local (Exim 4.43) id 1MK6X7-000843-Sl for CGatePro@mail.stalker.com; Fri, 26 Jun 2009 08:11:41 +0000 Received: from kvis06.kvi.nl ([129.125.27.56]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 26 Jun 2009 08:11:41 +0000 Received: from F.Zwarts by kvis06.kvi.nl with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 26 Jun 2009 08:11:41 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: CGatePro@mail.stalker.com From: "Fred Zwarts" Subject: Re: DUL/PBL and other policy block lists Date: Fri, 26 Jun 2009 10:11:31 +0200 Lines: 50 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: kvis06.kvi.nl X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Sender: news "Jeff Wark" wrote in message = news:list-54210974@mail.stalker.com... > We currently have our dynamic IP address blocks listed with spamhaus = [through=20 > their PBL] and with MAPS [in their DUL]. >=20 > We have a customer sending mail through our server to another=20 > recipient...pretty standard stuff. Here is what my logs are saying: >=20 > *our server getting the message* > 2009-06-25_10-00.log:10:30:47.981 2 SMTPI-269182([216.26.223.110]) = [2612154]=20 > received, 4518 bytes > 2009-06-25_10-00.log:10:30:47.981 4 SMTPI-269182([216.26.223.110]) = rsp: 250=20 > 2612154 message accepted for delivery >=20 > *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=20 > body rejected, got:554 mail from 216.26.223.110 refused, see=20 > http://www.spamhaus.org >=20 > It appears that the server on.sja.ca is doing some sort of 'deep = scanning' of=20 > the received headers and rejecting an email if the email in question = has=20 > originated on any computer with an IP address listed in a = blacklist/policy=20 > list somewhere. This seems to completely defeat the usefulness of = these=20 > lists. The IP is not on any other blacklist at www.spamhaus.org, only = the PBL. >=20 > Has anyone else experienced this recently? It happened with another = server a=20 > few weeks ago. These people must be rejecting legitimate email all = over the=20 > place if they will not accept an email that has touched a dynamic IP = address. Yes, this happens. That is one of the reasons we do not add our = addresses to such lists. We configure our routers/switches to block outgoing port 25 (SMTP) = access for=20 addresses that should not send E-mail. This is more effective and less = sensitive=20 for such errors. And problems can be solved locally in case of errors.