Log_tracking MTA option
Log Tracking Information (
log_tracking MTA option controls logging of message tracking/recall information. Bit 0 (value 0), if set, includes the tracking id and the current tracking in transaction log entries. The two appear as a single field; the id appears first and is separated from the timeout value by a colon. Tracking information appears immediately after the envelope id and before the deferred delivery time. An "
mt" attribute is used in XML or JSON format (
log_format set to 4 or 5, respectively).
mt attribute only appears in XML or JSON format logs if there is tracking information to log. As of MS 18.104.22.168, setting bit 2 (value 4) will cause the attribute to appear unconditionally.
If bit 1 (value 2) is set in the
log_tracking MTA option, then the tracking id and timeout, again separated by a colon, appear in the
LOG_ACTION mapping table probe, again immediately after the envelope id and before the deferred delivery time.