Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Mon, 25 Aug 2025 06:16:05 +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 [DB3PEPF0000885D.eurprd02.prod.outlook.com 2025-08-25T06:16:05.945Z 08DDE26742527A00]

The message subject was: Introduktionskurs om byggnaders klimatpåverkan och uppföljande fördjupningskurser
The message date was: Mon, 25 Aug 2025 08:16:03 +0200
The message identifier was: 9B/5D-30045-5AFFBA86
The message reference was: server-14.tower-850.messagelabs.com!1756102563!104065!1

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