Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Mon, 13 Oct 2025 08:22:57 +0200

The original message was received at Mon, 13 Oct 2025 08:22:21 +0200
from:
[email-masked]

   ----- The following addresses had permanent fatal errors -----
[email-masked]
    (reason: 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DU6PEPF0000B621.eurprd02.prod.outlook.com 2025-10-13T06:22:57.778Z 08DE0A0EC127685B])

   ----- Transcript of session follows -----
... while talking to gavlefastigheter.se.:
>>> DATA
<<< 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DU6PEPF0000B621.eurprd02.prod.outlook.com 2025-10-13T06:22:57.778Z 08DE0A0EC127685B]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DU6PEPF0000B621.eurprd02.prod.outlook.com 2025-10-13T06:22:57.778Z 08DE0A0EC127685B]
<<< 503 5.5.2 Need rcpt command [DU6PEPF0000B621.eurprd02.prod.outlook.com 2025-10-13T06:22:57.778Z 08DE0A0EC127685B]