Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 07 Dec 2025 08:11:28 +0100

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 [DB1PEPF000509F7.eurprd02.prod.outlook.com 2025-12-07T07:11:29.131Z 08DE2EBEFF6E14EA]'

Subject: Kurs om hur energiförluster minskas i VVC- och tappvattensystem
From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Date: Sun, 07 Dec 2025 08:11:28 +0100