Your message to nlyons@edmundoptics.com couldn't be delivered.
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topf Office 365 nlyons
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: 2/26/2024 6:53:43 PM
Sender Address: topf@zapf.in
Recipient Address: nlyons@edmundoptics.com
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: PH1P110MB1051.NAMP110.PROD.OUTLOOK.COM

Notification Details
Sent by: PH1P110MB1051.NAMP110.PROD.OUTLOOK.COM

Message Hops
HOP TIME (UTC) FROM TO WITH RELAY TIME
1 2/26/2024
6:53:43 PM
localhost mail.zapf.in ESMTPS *
2 2/26/2024
6:53:44 PM
mail.zapf.in mx-inbound12-148.us-east-2a.ess.aws.cudaops.com 1 sec
3 2/26/2024
6:53:47 PM
outbound-ip107a.ess.barracuda.com CY1USG02FT012.mail.protection.office365.us Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) 3 sec
4 2/26/2024
6:53:48 PM
CY1USG02FT012.eop-usg02.itar.protection.office365.us BN0P110CA0008.office365.us Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) 1 sec
5 2/26/2024
6:53:49 PM
BN0P110CA0008.NAMP110.PROD.OUTLOOK.COM PH1P110MB1051.NAMP110.PROD.OUTLOOK.COM Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) 1 sec

Original Message Headers

Received: from BN0P110CA0008.NAMP110.PROD.OUTLOOK.COM (2001:489a:200:161::18)
 by PH1P110MB1051.NAMP110.PROD.OUTLOOK.COM (2001:489a:200:177::20) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7249.50; Mon, 26 Feb
 2024 18:53:49 +0000
Received: from CY1USG02FT012.eop-usg02.itar.protection.office365.us
 (2001:489a:2202:5::207) by BN0P110CA0008.office365.us (2001:489a:200:161::18)
 with Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7270.47 via Frontend
 Transport; Mon, 26 Feb 2024 18:53:48 +0000
Authentication-Results: spf=fail (sender IP is 209.222.82.249)
 smtp.mailfrom=zapf.in; dkim=none (message not signed)
 header.d=none;dmarc=temperror action=none header.from=zapf.in;
Received-SPF: Fail (protection.outlook.com: domain of zapf.in does not
 designate 209.222.82.249 as permitted sender)
 receiver=protection.outlook.com; client-ip=209.222.82.249;
 helo=outbound-ip107a.ess.barracuda.com;
Received: from outbound-ip107a.ess.barracuda.com (209.222.82.249) by
 CY1USG02FT012.mail.protection.office365.us (10.97.26.150) with Microsoft SMTP
 Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.7316.27 via Frontend Transport; Mon, 26 Feb 2024 18:53:47 +0000
Received: from mail.zapf.in (hetzner.zapf.in [94.130.65.175]) by mx-inbound12-148.us-east-2a.ess.aws.cudaops.com (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 26 Feb 2024 18:53:44 +0000
Received: from localhost (localhost [IPv6:::1])
	by mail.zapf.in (Postfix) with ESMTPS id 6691AE042E
	for <nlyons@edmundoptics.com>; Mon, 26 Feb 2024 19:53:43 +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: nlyons@edmundoptics.com
Date: Mon, 26 Feb 2024 18:53:43 -0000
Message-ID: <170897362341.278.6260761685131553056@localhost>
X-BESS-ID: 1708973623-103220-12480-3517-1
X-BESS-VER: 2019.1_20240226.1643
X-BESS-Apparent-Source-IP: 94.130.65.175
X-BESS-Parts: H4sIAAAAAAACA4uuVkqtKFGyUioBkjpK+cVKVsamBkBGBlDMyMTIwNgg1TDVyM
	TUKNHcPNHUItnCIs3cyCwp2cDEOFGpNhYADp2sM0AAAAA=
X-BESS-Spam-Status: SCORE=0.00 using domain:216001 scores of QUARANTINE_LEVEL=2.5 KILL_LEVEL=5.5 tests=NO_REAL_NAME
Received-SPF: pass (mx-inbound12-148.us-east-2a.ess.aws.cudaops.com: domain of topf@zapf.in designates 94.130.65.175 as permitted sender)
X-BESS-Spam-Score: 0.00
Authentication-Results-Original: mx-inbound12-148.us-east-2a.ess.aws.cudaops.com; spf=pass (sender IP is
 94.130.65.175) smtp.mailfrom=topf@zapf.in; dmarc=none action=
 header.from=topf@zapf.in
X-BESS-Spam-Report: Code version 3.2, rules version 3.2.2.254489 [from cloudscan20-
	100.us-east-2b.ess.aws.cudaops.com]
	Rule breakdown below
	 pts rule name              description
	---- ---------------------- --------------------------------
	0.00 NO_REAL_NAME           HEADER: From: does not include a real name 
X-BESS-BRTS-Status: 1
Return-Path: topf@zapf.in
X-EOPAttributedMessage: 0
X-EOPTenantAttributedMessage: 34bcf370-f9ef-4845-98b6-5e7f25ad81d8:0
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: CY1USG02FT012:EE_|PH1P110MB1051:EE_
X-MS-Office365-Filtering-Correlation-Id: 8eeb3299-e34e-42a1-0498-08dc36fc4381