A new demo has been added in the Exchange Server 2003 demo portion.The detail of this demo is

Title: How to Disable Outbound Mail in Microsoft Exchange Server 2003

Objective: The objective of this demo is to teach you how to disable outbound mail in Microsoft Exchange Server 2003.The Disable Outbound Mail option lets you disable outbound mail from all SMTP queues. For example, this can be useful if a virus is active in your organization.

If you are a subscriber, then click the Demos link in the navigation menu to view the complete list of demos.