Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Mon, 29 Sep 2025 06:02:05 +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 [AM2PEPF0001C713.eurprd05.prod.outlook.com 2025-09-29T06:02:05.061Z 08DDFC41B054C904]

The message subject was: Kurs om hur man förebygger och hanterar utbrott av legionella
The message date was: Mon, 29 Sep 2025 08:01:53 +0200
The message identifier was: 5D/A4-32352-CD02AD86
The message reference was: server-10.tower-830.messagelabs.com!1759125723!46490!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.