Your message to anthon.plake@thehills.org couldn't be delivered.

anthon.plake@thehills.org only accepts messages from people in its organization or on its allowed senders list, and your email address isn't on the list.

topf Office 365 anthon.plake Sender Action Required Sender not allowed

How to Fix It It appears you aren't in the same organization as the recipient or your email address isn't on their allowed senders list. Contact the person you're sending your message to (by phone, for example) and tell them to ask their email admin to change the settings on their mailbox so it will accept messages from you.

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More Info for Email Admins

Status code: 550 5.7.134 This error occurs when the recipient (an Office 365 mailbox) is configured to accept messages only from authenticated senders (senders in the same organization or those added to the recipient's allowed senders list). To fix the issue, the recipient's email admin must add the sender's email address to the mailbox's allowed senders list, or they must turn off the mailbox's message delivery restrictions setting that requires that all senders to it are authenticated. This issue can only be fixed by the recipient's email admin. For more information and steps to fix this issue, see Fix email delivery issues for error code 5.7.134 in Office 365.

Original Message Details

Created Date: 2/28/2024 8:46:50 PM Sender Address: topf@zapf.in Recipient Address: anthon.plake@thehills.org Subject: [ZaPF-Lists] Bitte bestätige deine E-Mail-Adresse

Error Details

Error: 550 5.7.134 RESOLVER.RST.SenderNotAuthenticatedForMailbox; authentication required; Delivery restriction check failed because the sender was not authenticated when sending to this mailbox Message rejected by: SN7PR19MB6663.namprd19.prod.outlook.com

Notification Details

Sent by: SN7PR19MB6663.namprd19.prod.outlook.com

Original Message Headers

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 (2603:10b6:303:81::17) with Microsoft SMTP Server (version=TLS1_2,
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 CO1PEPF000044FA.mail.protection.outlook.com (10.167.241.200) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.7362.0 via Frontend Transport; Wed, 28 Feb 2024 20:46:58 +0000
Received: from mailstream007-gcpcentral1 (localhost [127.0.0.1])
	by mailstream-central.mxrecord.mx (Postfix) with ESMTP id 4TlRH61NJfz24hd8
	for <anthon.plake@thehills.org>; Wed, 28 Feb 2024 20:46:58 +0000 (UTC)
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Received-SPF: pass (mailstream-central.mxrecord.mx: zapf.in designates 94.130.65.175 as permitted sender) client-ip=94.130.65.175; envelope-from=topf@zapf.in; helo=hetzner.zapf.in;
Authentication-Results-Original: mailstream-central.mxrecord.mx;	 dmarc=none
 header.from=zapf.in;	 spf=pass smtp.mailfrom=zapf.in;	 dkim=none
Received: from mailstream-central.mxrecord.mx ([127.0.0.1])
        by localhost
        with SMTP (Area1Security-Mailstream 2.191.0) id LT69O7AX
        for anthon.plake@thehills.org;
        Wed, 28 Feb 2024 20:46:51 +0000 (GMT)
Received: from mail.zapf.in (hetzner.zapf.in [94.130.65.175])
	(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by mailstream-central.mxrecord.mx (Postfix) with ESMTPS id 4TlRGz3Q3dz24hcK
	for <anthon.plake@thehills.org>; Wed, 28 Feb 2024 20:46:51 +0000 (UTC)
Received: from localhost (localhost [IPv6:::1])
	by mail.zapf.in (Postfix) with ESMTPS id 492CBE042E
	for <anthon.plake@thehills.org>; Wed, 28 Feb 2024 21:46:50 +0100 (CET)
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: =?utf-8?q?=5BZaPF-Lists=5D_Bitte_best=C3=A4tige_deine_E-Mail-Adresse?=
From: topf@zapf.in
To: anthon.plake@thehills.org
Date: Wed, 28 Feb 2024 20:46:50 -0000
Message-ID: <170915321028.278.3731433284936652365@localhost>
X-Area1Security-Origin: EXTERNAL 
X-Area1Security-Processed: 8da0a4cd38e0e1fa9122d98f88fee6f7;2;NONE;2024-02-28T20:46:58;a6246302-d94a-4df7-b256-4165855b5249
Return-Path: topf@zapf.in
X-EOPAttributedMessage: 0
X-EOPTenantAttributedMessage: a79d7ec9-31d0-4224-bda2-a4626b657bc0:0
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