Subject: Mail Delivery Failure

From: Mail Delivery System <[email-masked]>
Date: Thu, 04 Sep 2025 06:19:16 +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 [DU2PEPF00028D0B.eurprd03.prod.outlook.com 2025-09-04T06:19:16.727Z 08DDE86850E22203]

The message subject was: Kurs om klimatberäkning för uppföljning av byggprojekt, för klimatdeklaration eller för certifiering
The message date was: Thu, 04 Sep 2025 08:19:14 +0200
The message identifier was: F4/85-29928-46F29B86
The message reference was: server-28.tower-878.messagelabs.com!1756966754!49496!1

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