Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Fri, 10 Oct 2025 02:17:15 -0700

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  [email-masked]
    host edeco-se.mail.protection.outlook.com [52.101.68.36]
    SMTP error from remote mail server after RCPT TO:<[email-masked]>:
    550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B95.eurprd02.prod.outlook.com 2025-10-10T09:17:15.916Z 08DE0660D861D592]