Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Mon, 25 Aug 2025 06:21:55 +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 [AM4PEPF00027A60.eurprd04.prod.outlook.com 2025-08-25T06:21:55.278Z 08DDE29B96564FE8]

The message subject was: Introduktionskurs om byggnaders klimatpåverkan och uppföljande fördjupningskurser
The message date was: Mon, 25 Aug 2025 08:21:52 +0200
The message identifier was: F4/46-14252-2010CA86
The message reference was: server-3.tower-850.messagelabs.com!1756102913!2407!1

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