Glen, I just verified in code that UserAdded event is indeed fired when created a user via the API.  How do you have the Confirm Email Address event configured?

Hi,

Thanks for responding.

The messages are not being received.

and

BTW: I have tried changing the "Frequency" to every 5 minutes but still no email is sent. I can manually send it though.

I have created a task for us to investigate this further.

Glen, I most apologize. When I first started reviewing this task, I thought it was a SmarterMail issue.  I failed to see the SmarterTrack tag.  I have passed this issue along to the SmarterTrack dev team for review.  You should hear something from them.