Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 08 Jan 2026 08:02:34 +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 [DB1PEPF000509F6.eurprd02.prod.outlook.com 2026-01-08T07:02:34.995Z 08DE4E3157A2BC5E]'

Subject: Kurs om tappvattensystem - energieffektivisering och legionella
From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Date: Thu, 08 Jan 2026 08:02:23 +0100