Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 25 Aug 2025 08:17:43 +0200

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 [AM2PEPF0001C712.eurprd05.prod.outlook.com 2025-08-25T06:17:43.751Z 08DDE28DE6605F91]'