Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 09 Jun 2025 15:34:50 +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 [AM4PEPF00027A68.eurprd04.prod.outlook.com 2025-06-09T13:34:50.819Z 08DDA602EAB04EC5]'