Envelope Journaling is used by Exchange Server to capture the complete recipient list of a message. The Enterprise Vault Journaling task automatically recognizes an envelope message and processes it accordingly.

In the body of the envelope message there may be uncategorized recipients, in addition to the TO, CC and BCC recipients. This happens when there is no way of discovering the original category of such recipients; for example, when a message is sent over SMTP by Exchange Server 2007. Enterprise Vault classifies such recipients as Undisclosed recipients.

You can search for Undisclosed recipients using the Recipient field option on the advanced page of the Enterprise Vault browser search. (The search index property, RNDN, is used for Undisclosed recipients.)

Undisclosed recipients are recognized in Compliance and Discovery Accelerator searches.

This chapter describes how Enterprise Vault Journaling task handles the envelope messages from Exchange 2000, Exchange Server 2003, and Exchange Server 2007.