Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 12 May 2025 08:26:28 +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 [AM4PEPF00027A63.eurprd04.prod.outlook.com 2025-05-12T06:26:28.393Z 08DD8C9891152D5E]'

Subject: [BULK] Kurs om legionella och energifrågor i VVC- och tappvattensystem