Mail Delivery Subsystem, Delivery Status Notification (Failure)

Question

Mail Delivery Subsystem, Delivery Status Notification (Failure)

Anonymous

Dear Admin,

I hope this message finds you well. We have been experiencing a recurring issue with receiving emails for my boss's email address, and we are reaching out to seek your assistance in resolving this matter.

Every day, my boss's email address receives an email similar to the one below, and we are uncertain about the cause of this problem:

From: Mail Delivery Subsystem <mailer-***@googlemail.com>
Sent: Monday, September 11, 2023 11:58 AM
To: my boss's email address
Subject: Delivery Status Notification (Failure)

		Message blocked	<br>	---	<br>	Your message to ____my boss's email address______ has been blocked. See technical details below for more information.		<br>	---
The response from the remote server was:<br><br>550 5.7.509 Access denied, sending domain [MG.BROKERBAY.COM] does not pass DMARC verification and has a DMARC policy of reject. [DM6PR02MB7065.namprd02.prod.outlook.com 2023-09-11T15:57:54.312Z 08DBB2A9648B1C4B] [BL1P221CA0029.NAMP221.PROD.OUTLOOK.COM 2023-09-11T15:57:54.343Z 08DBB283A6D9FFFB] [BL6PEPF0001AB53.namprd02.prod.outlook.com 2023-09-11T15:57:54.329Z 08DBB2663130E62D]<br><br><br><br><br><br><br><br>Our concern is that someone may be attempting to send emails to my boss's address, but these emails are getting rejected or not reaching the intended destination. We would greatly appreciate it if you could investigate the issue and provide guidance on how to rectify it. Our goal is to ensure that my boss can receive all relevant emails without interruption.<br><br><br><br>Your prompt attention to this matter would be highly appreciated. Please let us know if you require any additional information or access to the email server settings to assist in diagnosing and resolving the issue.<br><br>Thank you for your assistance in advance.<br><br>Best regards,

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Answer 1

Hello Kelly,

Thank you for using Microsoft products and posting to the community.

We fully understand the inconvenience the issue has caused and that the current situation can be frustrating. But from the error message you shared, it seems that your boss is receiving email delivery failure notifications from the email address (mailer-***@googlemail.com).

Typically, if you use Gmail as your primary email address, you may notice a specific “mailer-daemon google mail” notification stating that your email could not be delivered to the address you placed. It helps you to know that your email won't reach the recipient you want it to. So, your boss is using the @gmail domain for his email address, right?

If that's the case, then it may be a better option to contact Gmail support directly to assist you in continuing to troubleshoot this issue. Because of our limited familiarity with Gmail as Microsoft support and the fact that this issue involves private account information, troubleshooting steps may need to be provided by specialized Gmail support. Below is the contact Gmail support I found for your reference.

Gmail Help (google.com)

Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.

Your understanding is highly appreciated! I hope the above information is helpful.

Sincerely

Mavis - MSFT | Microsoft Community Support Specialist

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Mail Delivery Subsystem, Delivery Status Notification (Failure)

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