New messaging destination option for messages without primary object

In the PolicyCenter messaging system, many messages are associated with a primary object such as a policy. For messages without a primary object, documentation refers to those messages as non-safe-ordered messages.

In version 7.0, there was a messaging destination option called Strict Mode. Strict Mode was either enabled or disabled using a check box in the user interface.

If Strict Mode was enabled, messages without a primary object were sent in a strict order, and waited for an acknowledgement before sending the next message.
If Strict Mode was disabled, messages without a primary object were immediately sent in a single thread, and did not wait for an acknowledgement before proceeding to the next message.

In version 8.0, both those modes are available but there is a third choice, which is a multi-threaded sending with no ordering and no waiting for an acknowledgement. The precise order of sending of messages without a primary object is non-deterministic.

The messaging editor offers three choices for the option Messages Without Primary:

Single thread
Multi thread
Strict Mode