Subject: Undelivered Mail Returned to Sender

From: [email-masked] (Mail Delivery System)
Date: Tue, 19 Aug 2025 13:08:52 +0000 (UTC)

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<[email-masked]>: host
    lujohotel-com.mail.protection.outlook.com[52.101.68.21] said: 550 5.4.1
    Recipient address rejected: Access denied. For more information see
    https://aka.ms/EXOSmtpErrors [DU6PEPF0000A7E2.eurprd02.prod.outlook.com
    2025-08-19T13:08:52.727Z 08DDDC3075FE8B7A] (in reply to RCPT TO command)