1.3.4 Source Journaling
Source journaling is the process of storing copies of outgoing messages on a source computer. It is configured on a per-message basis and is implemented as a property set programmatically by a message queuing application. Source journaling can be used to track messages that were sent successfully, that could not be delivered, or both. Source journaling is disabled by default.<2>
There are two types of source journaling: positive source journaling and negative source journaling.