Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 06 Oct 2025 08:03:26 +0200

The following message to <[email-masked]> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB1PEPF000509FF.eurprd03.prod.outlook.com 2025-10-06T06:03:26.393Z 08DE037ED410DD17]'

Subject: [BULK] Lär dig energieffektivisera byggnadens installationssystem

X-MG