Does an email get sent to the client when an Estimate is marked "accepted" and a Retainer Invoice is automatically created?

Does an email get sent to the client when an Estimate is marked "accepted" and a Retainer Invoice is automatically created?

When I mark an estimate as "accepted", Books asks if I want to automatically create the Retainer Invoice. When I select "accept and create", the Retainer Invoice is marked as "sent". However, in my testing an email is not being sent. 

Should an email be sent to the client for the Retainer Invoice automatically when an administrator marks the Estimate as "accepted"? I am pretty sure this happens automatically when a client accepts the Estimate in the Client Portal but I want to determine if this happens also when the Estimate is marked as "accepted" in the backend of Books.