Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Mon, 6 Oct 2025 08:23:51 +0200

The original message was received at Mon, 6 Oct 2025 08:23:17 +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 [DB1PEPF000509F3.eurprd02.prod.outlook.com 2025-10-06T06:23:51.860Z 08DE0368FF5D47AF])

   ----- 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 [DB1PEPF000509F3.eurprd02.prod.outlook.com 2025-10-06T06:23:51.860Z 08DE0368FF5D47AF]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB1PEPF000509F3.eurprd02.prod.outlook.com 2025-10-06T06:23:51.860Z 08DE0368FF5D47AF]
<<< 503 5.5.2 Need rcpt command [DB1PEPF000509F3.eurprd02.prod.outlook.com 2025-10-06T06:23:51.860Z 08DE0368FF5D47AF]