Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Mon, 06 Oct 2025 06:03:47 +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 [AMS0EPF0000019F.eurprd05.prod.outlook.com 2025-10-06T06:03:47.295Z 08DE036D211FB9BA]

The message subject was: Lär dig energieffektivisera byggnadens installationssystem
The message date was: Mon, 06 Oct 2025 08:03:16 +0200
The message identifier was: 24/BD-05620-3CB53E86
The message reference was: server-13.tower-878.messagelabs.com!1759730625!1542!1

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