Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Thu, 11 Sep 2025 09:13:19 +0300

The original message was received at Thu, 11 Sep 2025 09:13:19 +0300
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 [DB5PEPF00014B98.eurprd02.prod.outlook.com 2025-09-11T06:13:19.689Z 08DDF0095250A411])

   ----- Transcript of session follows -----
... while talking to strangbetong.se.:
>>> DATA
<<< 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B98.eurprd02.prod.outlook.com 2025-09-11T06:13:19.689Z 08DDF0095250A411]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B98.eurprd02.prod.outlook.com 2025-09-11T06:13:19.689Z 08DDF0095250A411]
<<< 503 5.5.2 Need rcpt command [DB5PEPF00014B98.eurprd02.prod.outlook.com 2025-09-11T06:13:19.690Z 08DDF0095250A411]