Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Tue, 14 Oct 2025 08:30:58 +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 [DB1PEPF00039230.eurprd03.prod.outlook.com 2025-10-14T08:30:58.864Z 08DE09BF745FD568]

The message subject was: Den mest lönsamma energisparåtgärden är ...
The message date was: Tue, 14 Oct 2025 10:30:41 +0200
The message identifier was: 42/DF-32378-24A0EE86
The message reference was: server-4.tower-850.messagelabs.com!1760430656!54194!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.