Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Thu, 11 Sep 2025 08:13:47 +0200

The original message was received at Thu, 11 Sep 2025 08:13:10 +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 [AM2PEPF0001C70A.eurprd05.prod.outlook.com 2025-09-11T06:13:47.139Z 08DDF0AEEDDEC1EE])

   ----- Transcript of session follows -----
... while talking to gavle.se.:
>>> DATA
<<< 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [AM2PEPF0001C70A.eurprd05.prod.outlook.com 2025-09-11T06:13:47.139Z 08DDF0AEEDDEC1EE]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [AM2PEPF0001C70A.eurprd05.prod.outlook.com 2025-09-11T06:13:47.139Z 08DDF0AEEDDEC1EE]
<<< 503 5.5.2 Need rcpt command [AM2PEPF0001C70A.eurprd05.prod.outlook.com 2025-09-11T06:13:47.139Z 08DDF0AEEDDEC1EE]