Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Tue, 22 Apr 2025 06:15:06 +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 [DB1PEPF000509FB.eurprd03.prod.outlook.com 2025-04-22T06:15:06.074Z 08DD7CF7F51BF90E]

The message subject was: Kurs om legionella och energiförluster i VVC- och tappvattensystem
The message date was: Tue, 22 Apr 2025 08:14:59 +0200
The message identifier was: FB/BF-01054-9E337086
The message reference was: server-8.tower-837.messagelabs.com!1745302503!2122331!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.