Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Tue, 18 Nov 2025 10:51:48 +0100

The original message was received at Tue, 18 Nov 2025 10:51:12 +0100
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 [AM2PEPF0001C70D.eurprd05.prod.outlook.com 2025-11-18T09:51:48.915Z 08DE244E499DB412])

   ----- 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 [AM2PEPF0001C70D.eurprd05.prod.outlook.com 2025-11-18T09:51:48.915Z 08DE244E499DB412]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [AM2PEPF0001C70D.eurprd05.prod.outlook.com 2025-11-18T09:51:48.915Z 08DE244E499DB412]
<<< 503 5.5.2 Need rcpt command [AM2PEPF0001C70D.eurprd05.prod.outlook.com 2025-11-18T09:51:48.916Z 08DE244E499DB412]