How to add record to message tracking log from transport agent

Question

Hi,

I'm writing custom transport agent that is registered with OnSubmittedMessage event.

Now I am searching for a way to add record to the message tracking log with some custom information so that it is listed in the output of Get-MessageTrackingLog cmdlet.

The following MSDN article defines AGENTINFO value of EventId field of message tracking log record in the following way: This event is used by transport agents to log custom data.

So, there should be a way to add record to the message tracking log.

Is there API that allows to do it?

Oleksii