Event Espresso automatically sends out notifications to the event admin or the person who created the event after registration.
Could you check to see if it arrived in your spam folder? If it did, then please try setting up a transaction email service like Mandrill or Postmark app:
The support post ‘I want to receive email upon registration’ is closed to new replies.
Have a question about this support post? Create a new support post in our support forums and include a link to this existing support post so we can help you.
Support forum for Event Espresso 3 and Event Espresso 4.