Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Thu, 25 Sep 2025 08:20:49 +0200

The original message was received at Thu, 25 Sep 2025 08:20:10 +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 [AMS0EPF000001B2.eurprd05.prod.outlook.com 2025-09-25T06:20:49.097Z 08DDFAE017818EB8])

   ----- 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 [AMS0EPF000001B2.eurprd05.prod.outlook.com 2025-09-25T06:20:49.097Z 08DDFAE017818EB8]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [AMS0EPF000001B2.eurprd05.prod.outlook.com 2025-09-25T06:20:49.097Z 08DDFAE017818EB8]
<<< 503 5.5.2 Need rcpt command [AMS0EPF000001B2.eurprd05.prod.outlook.com 2025-09-25T06:20:49.097Z 08DDFAE017818EB8]