Subject: [Postmaster] Email Delivery Failure

From: "Exchadmin" <[email-masked]>
Date: Tue, 19 Aug 2025 14:09:07 +0100

This is a delivery failure notification message indicating that
An email with the following information :
-- From    : [email-masked]
-- To      : [email-masked]
-- Subject : [EXTERNAL] Get Ready for a Cool New Experience in Copenhagen!
-- Sent    : Tue, 19 Aug 2025 15:02:36 +0200

could not be delivered. The problem appears to be :
-- Recipient email address is possibly incorrect

Additional information follows :
-- 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [LO1PEPF000022FC.GBRP265.PROD.OUTLOOK.COM 2025-08-19T13:09:03.071Z 08DDDD9AD4DCFF70]

This condition occurred after 1 attempt(s) to deliver over
a period of 0 hour(s).

If you sent the email to multiple recipients, you will receive one
of these messages for each one which failed delivery,  otherwise
they have been sent.

This enhanced system notification has been specially generated
for you by Mimecast - the brain for your email.