2. save these emails in a database for audit, to enforce corporate security policy
MS Exchange 2003 is configured to send a copy of every message to firstname.lastname@example.org. DLP software at smtp.monitoring.local listens 25 port and accepts smtp messages.
From time to time smtp.monitoring.local is too busy to accept messages. Also, we have to restart it for mainteinance very often. [strong]Problem is[/strong] - emplyees get Delivery Status Notification from MS Exchange "can't deliver your message to email@example.com"! But emplyees should not be aware about firstname.lastname@example.org at all!