Subject: [Postmaster] Email Delivery Failure

From: "Exchadmin" <[email-masked]>
Date: Thu, 15 Jan 2026 13:41:33 +0000

This is a delivery failure notification message indicating that
An email with the following information :
-- From    : [email-masked]
-- To      : [email-masked]
-- Subject : [EXTERNAL] Season’s greetings from Scandinavia!
-- Sent    : Thu, 15 Jan 2026 14:31:27 +0100

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 [LO1PEPF000022FF.GBRP265.PROD.OUTLOOK.COM 2026-01-15T13:41:32.373Z 08DE540CC9DA194A]

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.