Email to Team Member Using Dynamics365WorkflowTools

Hii, i just tried Dynamics365WorkflowTools to send an email into team member. The email succesfully generate and the "to" field contains all team member. However, when i check in the activities, the email just sit on the "draft" status. It's not sent automatically by Dynamics365WorkflowTools  ? 

Here is the step on the workflow:

Those step i leard from the Dynamics365WorkflowTools documentary.