Not sending inmediat emails. Why?

Not sending inmediat emails. Why?

Hello,

I have created a signup campaign with send inmediatly when user registerd into list intruction.

I realize that when i add a user to the list, the system is not sending that email.

http://prntscr.com/4fyk5i

Can you please take a look into my account?

I dont know what i am doing wrong.

thanks