Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Mon, 29 Sep 2025 06:01:25 +0000

This is the mail delivery agent at Symantec Email Security.cloud.

I was unable to deliver your message to the following addresses:

[email-masked]

Reason: 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DU2PEPF0001E9C5.eurprd03.prod.outlook.com 2025-09-29T06:01:25.119Z 08DDFB9C936BC140]

The message subject was: Kurs om hur man förebygger och hanterar utbrott av legionella
The message date was: Mon, 29 Sep 2025 08:01:19 +0200
The message identifier was: 2B/F5-30062-4B02AD86
The message reference was: server-4.tower-850.messagelabs.com!1759125680!92368!1

Please do not reply to this email as it is sent from an unattended mailbox.
Contact your email administrator if you need more information, or
instructions for resolving this issue.