Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Mon, 15 Sep 2025 08:13:28 +0200

The original message was received at Mon, 15 Sep 2025 08:13:27 +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 [DB5PEPF00014B92.eurprd02.prod.outlook.com 2025-09-15T06:13:28.328Z 08DDF04392D06902])

   ----- 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 [DB5PEPF00014B92.eurprd02.prod.outlook.com 2025-09-15T06:13:28.328Z 08DDF04392D06902]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B92.eurprd02.prod.outlook.com 2025-09-15T06:13:28.328Z 08DDF04392D06902]
<<< 503 5.5.2 Need rcpt command [DB5PEPF00014B92.eurprd02.prod.outlook.com 2025-09-15T06:13:28.328Z 08DDF04392D06902]