In "An Exchange 2003 Journaling Primer" (April 2005, InstantDoc ID 45348), I described the fundamental differences between journaling, archiving, and compliance, and I talked about the most basic form of journaling: message journaling. However, message journaling might not provide the functionality you need for a comprehensive compliance system. For example, what if you need to support distribution list (DL) expansion and deal with message reports?
Exchange Server 2003 provides another form of journaling: envelope journaling. Envelope journaling is a more sophisticated form of journaling and is generally the most common form implemented by organizations that are serious about journaling. Let's take a close look at envelope journaling—how to enable it in both Exchange 2003 and Exchange 2000 Server and how to make it work in a multiserver environment.
Envelope-Journaling Benefits
Message journaling simply captures a copy of any messages sent from or received by a mailbox in a database on which journaling has been enabled, then forwards those captured messages to the journal mailbox. Message journaling looks only at the P2 message headers and uses those headers to determine the recipients and originators of the message. (See "An Exchange 2003 Journaling Primer" for information about both P1 and P2 headers.) . . .
