Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 30 Sep 2025 11:00:56 +0000

The following message to <[email-masked]> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [AM4PEPF00025F9C.EURPRD83.prod.outlook.com 2025-09-30T11:00:55.602Z 08DDFD773CD1E783]'