Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Tue, 14 Oct 2025 08:31:08 +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 [DB1PEPF000509F8.eurprd02.prod.outlook.com 2025-10-14T08:31:08.442Z 08DE09C63935C087]

The message subject was: Den mest lönsamma energisparåtgärden är ...
The message date was: Tue, 14 Oct 2025 10:30:43 +0200
The message identifier was: 0F/42-07206-B4A0EE86
The message reference was: server-15.tower-837.messagelabs.com!1760430662!52096!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.