[CentOS] OT: DMARC / DKIM Failure Reports

Tue Sep 17 14:06:01 UTC 2019
Miroslav Geisselreiter <mg at intar.cz>

Hi guys,

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

This is the first report:

This is an email abuse report for an email message received from IP 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 at centos.org
Original-Rcpt-To:obodor at vub.sk
Arrival-Date: Tue, 17 Sep 2019 15:56:25 +0200
Message-ID:<5502e8ac-6b01-18dd-e028-7d2dd666063b at intar.cz>
Authentication-Results: dmarc=fail (p=none, dis=none) header.from=intar.cz
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 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 at centos.org
Source-IP: (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 [])
	(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 at forall.pl>; 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 at centos.org
Delivered-To:centos at centos.org
Received-SPF: Pass (sender SPF authorized) identity=mailfrom;
  client-ip=; helo=nirvana.intar.cz;envelope-from=mg at intar.cz;
  receiver=centos at centos.org  
Received: from nirvana.intar.cz (nirvana.intar.cz [])
  by mail.centos.org (Postfix) with ESMTPS id 640643C1F0F
  for<centos at centos.org>; Tue, 17 Sep 2019 13:55:59 +0000 (UTC)
Received: from larix.intarnet.cz (larix.intarnet.cz [])
  by nirvana.intar.cz (Postfix) with ESMTPS id 74992C045CD1;
  Tue, 17 Sep 2019 15:55:57 +0200 (CEST)
Received: from [] (nirvana.intar.cz [])
  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=;
To: CentOS mailing list<centos at centos.org>,
  Mauricio Tavares<raubvogel at gmail.com>
References:<b3f926b0-711f-4a32-4a61-644e707a8db8 at intar.cz>
  <CAHEKYV42BVbAiPmCPnDPhQm53=+t6PVpjheXvjEY535kHFttSg at mail.gmail.com>
  <ea092741-5941-c49d-7fe2-b4e8df9944ed at intar.cz>
  <CAHEKYV5T8UJNB-PVoj=Aujje3MjN-HiAxKp9kcB24ZK6z8d2Kg at mail.gmail.com>
From: Miroslav Geisselreiter<mg at intar.cz>
Organization: INTAR a.s.
Message-ID:<5502e8ac-6b01-18dd-e028-7d2dd666063b at intar.cz>
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 at mail.gmail.com>
Subject: Re: [CentOS] CentOS7 sometimes don't detect NIC after reboot
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