Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 29 Sep 2025 08:02:18 +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 [DB1PEPF00039233.eurprd03.prod.outlook.com 2025-09-29T06:02:18.910Z 08DDFAC1C0ABCA48]'

Subject: [BULK] Kurs om hur man förebygger och hanterar utbrott av legionella