| Domainkey Mix-Up (frequent but random bug :-( ) [message #62390] |
Fri, 17 April 2009 18:57  |
 admindave 
Messages: 31
Registered: October 2008 |
Member |
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Okay, this is really weird and I tried to fix it for quite some time, but I'm starting to really think this is a real bug:
The Domainkeys function is frequently mixing up emails with bad domainkeys - here two examples (sent via php->mail() one minute pause between them, same script, same email content, everything the same, besides the domainkeys being "good" in one and "bad" in the other)
okay, this is the "domainkeys good" email:
Delivered-To: xxxxxxxx@gmail.com
Received: by 10.114.175.5 with SMTP id x5cs433590wae;
Fri, 17 Apr 2009 14:46:15 -0700 (PDT)
Received: by 10.220.44.200 with SMTP id b8mr3735137vcf.62.1240004773611;
Fri, 17 Apr 2009 14:46:13 -0700 (PDT)
Return-Path: <validreturn@email.com>
Received: from hosting.mydomain.net (hosting.mydomain.net [my-ip-with-rdns])
by mx.google.com with ESMTP id 4si830605yxd.42.2009.04.17.14.46.12;
Fri, 17 Apr 2009 14:46:12 -0700 (PDT)
Received-SPF: pass (google.com: domain of validreturn@email.com designates my-ip-with-rdns as permitted sender) client-ip=my-ip-with-rdns;
DomainKey-Status: good
Authentication-Results: mx.google.com; spf=pass (google.com: domain of validreturn@email.com designates my-ip-with-rdns as permitted sender) smtp.mail=validreturn@email.com; domainkeys=pass header.From=validreturn@email.com
Received: (qmail 21629 invoked by uid 1011); 17 Apr 2009 21:32:02 -0000
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=private; d=validreturndomain.com;
b=VvIqX+QTPGI010JqdKTux8q89GpAM9MusgYeCqUTZS+zc1CaxcmaQWYIC11/RYXd;
Date: 17 Apr 2009 21:32:02 -0000
Message-ID: <20090417213202.21624.qmail@hosting.mydomain.net>
To: "Name" <xxxxxxxx@gmail.com>
Subject: test-email
From: "myname" <validreturn@email.com>
body.....
and this is what is different in the "domainkeys bad" email:
DomainKey-Status: bad
Authentication-Results: mx.google.com; spf=pass (google.com: domain of validreturn@email.com designates my-ip-with-rdns as permitted sender) smtp.mail=validreturn@email.com; domainkeys=hardfail header.From=validreturn@email.com
Received: (qmail 3979 invoked by uid 1011); 17 Apr 2009 21:33:02 -0000
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=private; d=validreturndomain.com;
b=BeUtoHmshdiid/H5lROfIFC6itUWIPObFsew6eC0WWmgTVssyLHxMPLmbpSa5TnU;
The only difference (besides the message id of course) is the Domainkey, which is obviously created wrongly.
DNS wasn't changed since days, so this is no issue of not having the DNS entries spread around the internet yet.
Like said, this happens for like every 3rd email or so, seems very random, but it is very annoying + damaging to delivery rates 
Clients are not getting emails properly if Domainkeys fail
And disabling Domainkeys gives emails to hotmail etc. no chance
Please, can you have a look into this and fix it, thanks a lot in advance,
Dave.
PS: Yes, I tried /script/fixdomainkey and rebooting and all sorts of things
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