Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Tue, 14 Oct 2025 08:31:02 +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 [AMS0EPF00000193.eurprd05.prod.outlook.com 2025-10-14T08:31:02.442Z 08DE0837E7A47C9B]

The message subject was: Den mest lönsamma energisparåtgärden är ...
The message date was: Tue, 14 Oct 2025 10:30:42 +0200
The message identifier was: D6/56-19999-54A0EE86
The message reference was: server-23.tower-830.messagelabs.com!1760430660!62547!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.