Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 11 Jun 2025 09:01:32 +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 [AM1PEPF000252DD.eurprd07.prod.outlook.com 2025-06-11T07:01:32.801Z 08DDA80871A18F21]'