Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 19 Aug 2025 02:33:42 -0700

The following message to <[email-masked]> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [BN2PEPF000044A6.namprd04.prod.outlook.com 2025-08-19T09:33:42.849Z 08DDDBFEACDA931F]'