Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Tue, 13 Jan 2026 09:03:51 +0200

The original message was received at Tue, 13 Jan 2026 09:03:51 +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 [DU2PEPF00028CFE.eurprd03.prod.outlook.com 2026-01-13T07:03:51.751Z 08DE4E4E2A996C26])

   ----- 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 [DU2PEPF00028CFE.eurprd03.prod.outlook.com 2026-01-13T07:03:51.751Z 08DE4E4E2A996C26]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DU2PEPF00028CFE.eurprd03.prod.outlook.com 2026-01-13T07:03:51.751Z 08DE4E4E2A996C26]
<<< 503 5.5.2 Need rcpt command [DU2PEPF00028CFE.eurprd03.prod.outlook.com 2026-01-13T07:03:51.751Z 08DE4E4E2A996C26]