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

Title: How to Create a Mailbox Recipient Policy in Microsoft Exchange Server 2003

Objective: The objective of this demo/tutorial is to teach you how to create a mailbox recipient policy in Microsoft Exchange Server 2003. Mailbox recipient policies enforce corporate e-mail retention policies. When you create a mailbox recipient policy, you configure the Exchange Mailbox Manager to move or delete messages from some or all folders in users' mailboxes. For each recipient policy you create, you can define the membership of the recipient policy and select whether you want to delete messages based on age, size, or both. You can also choose to notify clients that their mailboxes were cleaned, and you can choose to have reports sent to an administrator.

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