[lug-ld] Fwd: Mail delivery failed: returning message to sender

[Heinz-Dieter Swiateck]

Hallo Admins,
Kann mir zu u. s. Mail etwas sagen, bzw. wie ich das Problem lösen kann.
Ich habe bereits verschiedenes im Bereich DNS auf den Account? ausprobiert. Die Mail kommt jedoch bislang zurück.
Was mache  ich falsch?


-------- Ursprüngliche Nachricht --------
Von: Mail Delivery System <mailer-daemon at kundenserver.de>
Gesendet: 21. März 2023 22:21:49 MEZ
An: heinz-dieter at swiateck.de
Betreff: Mail delivery failed: returning message to sender

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of
its recipients. This is a permanent error.

The following address failed:

    jdieter740 at gmail.com:
        SMTP error from remote server for TEXT command, host: gmail-smtp-in.l.google.com (108.177.119.26) reason: 550-5.7.26 Unauthenticated email from swiateck.de is not accepted due to
550-5.7.26 domain's DMARC policy. Please contact the administrator of
550-5.7.26 swiateck.de domain if this was a legitimate mail. Please visit
550-5.7.26  https://support.google.com/mail/answer/2451690 to learn about 
the
550 5.7.26 DMARC initiative. i9-20020a170906250900b008df684ab75dsi13785921
ejb.595 - gsmtp


--- The header of the original message is following. ---

Received: from [10.10.21.100] ([91.66.189.38]) by mrelayeu.kundenserver.de
 (mreue108 [212.227.15.183]) with ESMTPSA (Nemesis) id
 1McGxG-1qCxBH3xa0-00ckX5 for <jdieter740 at gmail.com>; Tue, 21 Mar 2023
 22:21:48 +0100
Content-Type: multipart/mixed; boundary="------------sfUBrxRfb0N6m64lkoty0Br2"
Message-ID: <eeaf46c1-551f-4871-b5bb-b971468eccab at swiateck.de>
Date: Tue, 21 Mar 2023 22:21:47 +0100
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.6.0
From: Heinz-Dieter Swiateck <heinz-dieter at swiateck.de>
Subject: [MTK] Treffen heute Abend
Reply-To: heinz-dieter at swiateck.de
To: Dieter Jung <jdieter740 at gmail.com>
Content-Language: de-DE
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X-Spam-Flag: NO
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Servus
Heinz-Dieter
--
Servus
Heinz-Dieter
--
Servus
Heinz-Dieter
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