1.3.7 Source Journaling
Source journaling is the process of storing copies of outgoing messages on a source computer. Source journaling is selected on a per-message basis and is programmatically implemented as a property set by a message queuinq application. Source journaling can be used to track messages that were sent successfully, messages that could not be delivered, or both. By default, source journaling is not selected.
There are two types of source journaling: positive source journaling and negative source journaling, as described in the sections that follow.