[opendmarc-users] Authentication failures when sending to this list

[Robert Senger]

Hi all,

I just sent my first message to this list, and received a lot of
authentication failure reports from various peers, indicating that DKIM
verification failed. See below for an example.

I am pretty sure that my DKIM setup is fine (all my emails are verified
fine by peers when sent directly), so I assume the DKIM verification
fails due to Subject: or body altered by the
opendmarc-users at trusteddomain.org mailing list. Shouldn't that be
handled by the mailing list agent by adding its own DKIM signature, or
may there be a misconfiguration on my side?

I've set DMARC and DKIM settings back to "loose" for the moment.

Thanks for help,

Robert


Authentication-Results: mx01.nausch.org;
        dkim=fail reason="signature verification failed" (2048-bit key)
header.d=lists.microscopium.de header.i=@lists.microscopium.de
header.b=fS/ayBFU
Authentication-Results: mx01.nausch.org; spf=pass
smtp.mailfrom=<opendmarc-users-bounces at trusteddomain.org>
smtp.helo=medusa.blackops.org
Received: from medusa.blackops.org (mailman at localhost.blackops.org
[127.0.0.1])
        by medusa.blackops.org (8.14.5/8.14.5) with ESMTP id
t4Q7epp4001911;
        Tue, 26 May 2015 00:43:22 -0700 (PDT)
        (envelope-from opendmarc-users-bounces at trusteddomain.org)
DKIM-Filter: OpenDKIM Filter v2.10.2 medusa.blackops.org t4Q7epp4001911
Authentication-Results: medusa.blackops.org;
        dkim=fail reason="signature verification failed" (2048-bit key;
unprotected) header.d=lists.microscopium.de
header.i=@lists.microscopium.de header.b=fS/ayBFU;
        dkim-atps=neutral
X-SenderID: Sendmail Sender-ID Filter v1.0.0 medusa.blackops.org
t4Q7epp4001911
Authentication-Results: medusa.blackops.org; sender-id=fail
(NotPermitted) header.sender=opendmarc-users-bounces at trusteddomain.org;
spf=fail (NotPermitted)
smtp.mfrom=opendmarc-users-bounces at trusteddomain.org
Received: from microscopium.de (familie-senger.net [88.217.187.146])
        by medusa.blackops.org (8.14.5/8.14.5) with ESMTP id
t4Q7eijG001904
        (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256
verify=NO)
        for <opendmarc-users at trusteddomain.org>;
        Tue, 26 May 2015 00:40:47 -0700 (PDT)
        (envelope-from robert.senger at lists.microscopium.de)
DKIM-Filter: OpenDKIM Filter v2.10.2 medusa.blackops.org t4Q7eijG001904
X-SenderID: Sendmail Sender-ID Filter v1.0.0 medusa.blackops.org
t4Q7eijG001904
Authentication-Results: medusa.blackops.org; sender-id=neutral
        header.from=robert.senger at lists.microscopium.de;
        spf=neutral smtp.mfrom=robert.senger at lists.microscopium.de
Received: from [IPv6:2001:470:52a0:202:5d32:abf3:7de2:5f0]
        (altair.microscopium.de
[IPv6:2001:470:52a0:202:5d32:abf3:7de2:5f0])
        by microscopium.de (Postfix) with ESMTPSA id BC2954922
        for <opendmarc-users at trusteddomain.org>;
        Tue, 26 May 2015 09:40:26 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple;
        d=lists.microscopium.de; s=mail; t=1432626030;
        bh=SthDUOP5j2XpNUKlb8zJOVeeOhJpttHnDIJVpWU7794=;
        h=Subject:From:To:Date:From;

b=fS/ayBFU5r2AxcQHiXLU1uZHdWAZF0TwkTbOt1TlB29rtnRaFh40yFNoC3H8aNBwb
        Flyzsm1xirzsn0BgkLhQGTi5IuFztII5AauoFV3wsA73HuVli8r+GHXLNTFm
+i/HsY

XiqsOol4Cr3n7UI/xwX1kHPUzys52mKxZUQfIotXsrawqFvm4E8O5ihbl7ZxcpysT0
        HjeTaaCSD1VrlIA1o1oPT1XEjoAiXzWrZCotPwcH
+33oU75isK4dLjF9ZooGDk2UQn
        klbT3vjcN2C2yovRCcdO4eD0eMTgmJr8Ao/1VRw4kXZVGWy4+vRW2zY0bD0G5/kR
+G
        icr5oMp69Xdtw==
Message-ID: <1432626023.18757.19.camel at altair>
From: Robert Senger <robert.senger at lists.microscopium.de>
To: opendmarc-users at trusteddomain.org
Date: Tue, 26 May 2015 09:40:23 +0200
X-Mailer: Evolution 3.8.5-2+b1 
Mime-Version: 1.0
X-Spam-Status: No, score=0.0 required=5.0 tests=none
autolearn=unavailable
        version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
medusa.blackops.org
Subject: [opendmarc-users] Sending aggregate reports, creating a loop?
X-BeenThere: opendmarc-users at trusteddomain.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: OpenDMARC discussion <opendmarc-users.trusteddomain.org>
List-Unsubscribe:
<http://www.trusteddomain.org/mailman/options/opendmarc-users>, 

<mailto:opendmarc-users-request at trusteddomain.org?subject=unsubscribe>
List-Archive: <http://www.trusteddomain.org/pipermail/opendmarc-users>
List-Post: <mailto:opendmarc-users at trusteddomain.org>
List-Help:
<mailto:opendmarc-users-request at trusteddomain.org?subject=help>
List-Subscribe:
<http://www.trusteddomain.org/mailman/listinfo/opendmarc-users>,

<mailto:opendmarc-users-request at trusteddomain.org?subject=subscribe>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: opendmarc-users-bounces at trusteddomain.org
Sender: opendmarc-users-bounces at trusteddomain.org




-- 
Robert Senger