Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Thu, 18 Sep 2025 10:11:02 +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 [DB1PEPF000509F1.eurprd03.prod.outlook.com 2025-09-18T10:11:02.591Z 08DDF571E9342B09]

The message subject was: Installationstekniska åtgärder som sparar energi – gå kursen!
The message date was: Thu, 18 Sep 2025 12:10:52 +0200
The message identifier was: 8B/F0-04390-5BADBC86
The message reference was: server-28.tower-837.messagelabs.com!1758190255!5411!1

Please do not reply to this email as it is sent from an unattended mailbox.
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