Overall, there are 9 separate times Email can be sent during the Evaluation Event described by a Workflow, and each time an email can be sent either to the Observee, or to the Observer, or both, and a different Email Template can be used for each transmission. This is all described in the "Email Options" portion of a Workflow:
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article