Mailing List CGatePro@mail.stalker.com Message #94905
From: Martin Miller <anothersphere@gmail.com>
Subject: Re: SPF and "mirror" question
Date: Sat, 26 Apr 2008 07:54:24 +1200
To: CommuniGate Pro Discussions <CGatePro@mail.stalker.com>
Have you checked out http://www.openspf.org/ ?
You might get a clearer understanding!

2008/4/26 Uwe Baemayr <cgate@baemayr.com>:
>
>
>  Howdy!
>
>
>  A Communigate SPF question: I "mirror" my email from my account at work to
> my account at home, using an account-level forwarding rule with the "keep a
> copy" option.  Both are Communigate servers.
>
>
>  This morning, I received two messages with "Received-SPF: fail".  One such
> message, from Newegg.com is below.  It looks to me like the Communigate
> server at home (v5.1.14) was performing SPF checking and used the address of
> the Communigate server at work (v5.0.8) that "mirrored" the message as the
> sending host, so SPF failed.
>
>
>  Names below obfuscated (don't want to see questions about my domains in
> Google), but the routing is:
>
>
>    newegg.com -> relay.com (mirror) -> final.com
>
>
>  Is this expected behavior?  I would think that Communigate would check the
> original sender, not the relay.  Or could this problem be solved by having
> 'relay.com' also check SPF -- would 'final.com' not check SPF if there was
> already an SPF record in the headers?  That would seem a little dangerous.
>
>
>   Return-Path: <bo-bveftk4ab4ppkcaxscau0bjjcteyqz@b.email.newegg.com>
>   Received: from [100.100.100.100] (HELO relay.com)
>     by final.com (CommuniGate Pro SMTP 5.1.14)
>     with ESMTP id 6175572 for me@final.com; Fri, 25 Apr 2008 03:58:36 -0700
>   Received-SPF: fail
>    receiver=final.com; client-ip=100.100.100.100;
>    envelope-from=bo-bveftk4ab4ppkcaxscau0bjjcteyqz@b.email.newegg.com
>   Received: from <me@relay.com>
>     by relay.com (CommuniGate Pro RULES 5.0.8)
>     with RULES id 2650887; Fri, 25 Apr 2008 05:10:26 -0500
>   X-Autogenerated: Mirror
>   Resent-From: <me@relay.com>
>   Resent-Date: Fri, 25 Apr 2008 05:10:26 -0500
>   Received: from [192.168.0.1] (HELO relay.com)
>     by relay.com (CommuniGate Pro SMTP 5.0.8)
>     with SMTP id 2650886 for me@relay.com; Fri, 25 Apr 2008 05:10:26 -0500
>   Received: from mta700.email.newegg.com ([38.119.56.160]) by relay.com with
>     Microsoft SMTPSVC(6.0.3790.1830);
>     Fri, 25 Apr 2008 05:11:52 -0500


--
Martin Miller
___________________________________________________________________
 <http://www.AnotherSphere.co.nz>
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