Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Mon, 10 Nov 2025 11:20:25 -0600

The original message was received at Mon, 10 Nov 2025 11:20:23 -0600
from m0440770.ppops.net [127.0.0.1]

   ----- 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 [BN2PEPF000044A0.namprd02.prod.outlook.com 2025-11-10T17:20:24.933Z 08DE1E6763E8167A])

   ----- Transcript of session follows -----
... while talking to afamilylegacy-com.mail.protection.outlook.com.:
>>> DATA
<<< 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [BN2PEPF000044A0.namprd02.prod.outlook.com 2025-11-10T17:20:24.933Z 08DE1E6763E8167A]
550 5.1.1 <[email-masked]>... User unknown
<<< 503 5.5.2 Need rcpt command [BN2PEPF000044A0.namprd02.prod.outlook.com 2025-11-10T17:20:24.933Z 08DE1E6763E8167A]