Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Tue, 19 Aug 2025 12:32:58 +0300

The original message was received at Tue, 19 Aug 2025 12:32:58 +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 [DB1PEPF00039231.eurprd03.prod.outlook.com 2025-08-19T09:32:58.783Z 08DDDC14247815E1])

   ----- 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 [DB1PEPF00039231.eurprd03.prod.outlook.com 2025-08-19T09:32:58.783Z 08DDDC14247815E1]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB1PEPF00039231.eurprd03.prod.outlook.com 2025-08-19T09:32:58.783Z 08DDDC14247815E1]
<<< 503 5.5.2 Need rcpt command [DB1PEPF00039231.eurprd03.prod.outlook.com 2025-08-19T09:32:58.783Z 08DDDC14247815E1]