Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Tue, 30 Sep 2025 04:01:17 -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 talarforum-se.mail.protection.outlook.com [52.101.80.150]
    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 [GVX0EPF00042751.SWEP280.PROD.OUTLOOK.COM 2025-09-30T11:01:17.023Z 08DDFAD44BC2A578]