Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 26 Jun 2025 10:02:57 +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 [AMS0EPF00000194.eurprd05.prod.outlook.com 2025-06-26T08:02:58.208Z 08DDB123DF81E6DB]'