Re: OT: DMARC / DKIM Failure Reports

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On 2019-09-17 09:06, Miroslav Geisselreiter wrote:
Hi guys,

when I send e-mails to CentOS mailing list <centos@xxxxxxxxxx>, I received DMARC / DKIM failure reports. Is it possible to solve this problem and if so how?


That is why DMARC took 10 years of heated discussions, before it was actually implemented - in first place by big boys who will never hear/listen. DMARC breaks mail forwarding. Period. Breaks normal way mail lists were operating, but mail lists found work around:

I maintain mail lists for the department, mailman is mail list server we use. There is setting: Replace the From: if set to "Munge from" then mail list will replace sender with mail list itself and it will appear as send by ... through mail list. DMARC enforcing folks/servers will be happy.

Just my $0.02

Valeri

This is the first report:


This is an email abuse report for an email message received from IP 208.100.23.70 on Tue, 17 Sep 2019 15:56:25 +0200.
The message below did not meet the sending domain's DMARC policy.
For more information about this format please seehttp://tools.ietf.org/html/rfc6591 ; .

Feedback-Type: auth-failure
User-Agent: Lua/1.0
Version: 1.0
Original-Mail-From:centos-bounces@xxxxxxxxxx
Original-Rcpt-To:obodor@xxxxxx
Arrival-Date: Tue, 17 Sep 2019 15:56:25 +0200
Message-ID:<5502e8ac-6b01-18dd-e028-7d2dd666063b@xxxxxxxx>
Authentication-Results: dmarc=fail (p=none, dis=none) header.from=intar.cz
Source-IP: 208.100.23.70
Delivery-Result: smg-policy-action
Auth-Failure: dmarc
Reported-Domain: intar.cz

------------
This is the seconf report:

This is an authentication failure report for an email message received from IP
208.100.23.70 on Tue, 17 Sep 2019 15:56:32 +0200 (CEST).



Feedback-Type: auth-failure
Version: 1
User-Agent: OpenDMARC-Filter/1.3.2
Auth-Failure: dmarc
Authentication-Results: mx.bitactive.com; dmarc=fail header.from=intar.cz
Original-Envelope-Id: 46Xl5X0Ss6z1ltXM
Original-Mail-From:centos-bounces@xxxxxxxxxx
Source-IP: 208.100.23.70 (mail.centos.org)
Reported-Domain: intar.cz



Authentication-Results: mx.bitactive.com;
    dkim=fail reason="signature verification failed" (1024-bit key) header.d=intar.czheader.i=@intar.cz  header.b="rSnG4eyi"
Received: from mail.centos.org (mail.centos.org [208.100.23.70])
     (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
     (No client certificate requested)
     by mx.bitactive.com (Postfix) with ESMTPS id 46Xl5X0Ss6z1ltXM
     for<mwanat@xxxxxxxxx>; Tue, 17 Sep 2019 15:56:32 +0200 (CEST)
Received: from mail.centos.org (localhost [IPv6:::1])
     by mail.centos.org (Postfix) with ESMTP id 011EE3C1F16;
     Tue, 17 Sep 2019 13:56:03 +0000 (UTC)
X-Original-To:centos@xxxxxxxxxx
Delivered-To:centos@xxxxxxxxxx
Received-SPF: Pass (sender SPF authorized) identity=mailfrom;
  client-ip=81.19.4.73; helo=nirvana.intar.cz;envelope-from=mg@xxxxxxxx;
 receiver=centos@xxxxxxxxxx Received: from nirvana.intar.cz (nirvana.intar.cz [81.19.4.73])
  by mail.centos.org (Postfix) with ESMTPS id 640643C1F0F
  for<centos@xxxxxxxxxx>; Tue, 17 Sep 2019 13:55:59 +0000 (UTC)
Received: from larix.intarnet.cz (larix.intarnet.cz [192.168.1.53])
  by nirvana.intar.cz (Postfix) with ESMTPS id 74992C045CD1;
  Tue, 17 Sep 2019 15:55:57 +0200 (CEST)
Received: from [192.168.1.176] (nirvana.intar.cz [81.19.4.73])
  by larix.intarnet.cz (Postfix) with ESMTPSA id 5EB62104F460;
  Tue, 17 Sep 2019 15:55:57 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intar.cz; s=larix;
  t=1568728557; bh=ezgga1YmsO9WxPgAc+7ouaZ9HJlG9XkA8LJjbiJd0yA=;
  h=Subject:To:References:From:Date:In-Reply-To;
  b=rSnG4eyiHg6tTDdBdCJyp1/ACUczgG+9usycftG3BMz1EwN0zPMPyo0gSkpvxwJUf
  aM/jvd/gzFJVz7Z6MEw1A9iCE0ZzJy931WvXG+rIJR+Set5hb3fMpu1PgaOz1MIYTF
  7Z24H3X1KwUPof1RaKHrFQLYFbr011IbEwz613Xo=
To: CentOS mailing list<centos@xxxxxxxxxx>,
  Mauricio Tavares<raubvogel@xxxxxxxxx>
References:<b3f926b0-711f-4a32-4a61-644e707a8db8@xxxxxxxx>
  <CAHEKYV42BVbAiPmCPnDPhQm53=+t6PVpjheXvjEY535kHFttSg@xxxxxxxxxxxxxx>
  <ea092741-5941-c49d-7fe2-b4e8df9944ed@xxxxxxxx>
  <CAHEKYV5T8UJNB-PVoj=Aujje3MjN-HiAxKp9kcB24ZK6z8d2Kg@xxxxxxxxxxxxxx>
From: Miroslav Geisselreiter<mg@xxxxxxxx>
Organization: INTAR a.s.
Message-ID:<5502e8ac-6b01-18dd-e028-7d2dd666063b@xxxxxxxx>
Date: Tue, 17 Sep 2019 15:55:57 +0200
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101
  Firefox/52.0 SeaMonkey/2.49.4
MIME-Version: 1.0
In-Reply-To:<CAHEKYV5T8UJNB-PVoj=Aujje3MjN-HiAxKp9kcB24ZK6z8d2Kg@xxxxxxxxxxxxxx>
Subject: Re:  CentOS7 sometimes don't detect NIC after reboot
X-BeenThere:centos@xxxxxxxxxx
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: CentOS mailing list <centos.centos.org>
List-Unsubscribe:<https://lists.centos.org/mailman/options/centos>,
  <mailto:centos-request@xxxxxxxxxx?subject=unsubscribe>
List-Archive:<http://lists.centos.org/pipermail/centos/>
List-Post:<mailto:centos@xxxxxxxxxx>
List-Help:<mailto:centos-request@xxxxxxxxxx?subject=help>
List-Subscribe:<https://lists.centos.org/mailman/listinfo/centos>,
  <mailto:centos-request@xxxxxxxxxx?subject=subscribe>
Reply-To: CentOS mailing list<centos@xxxxxxxxxx>
Content-Transfer-Encoding: base64
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Errors-To:centos-bounces@xxxxxxxxxx
Sender: "CentOS"<centos-bounces@xxxxxxxxxx>



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https://lists.centos.org/mailman/listinfo/centos

--
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
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https://lists.centos.org/mailman/listinfo/centos




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