How can I configure email notifications on my form?

I need to do in order to send the submission response emails I set up in my forms? Currently, the only response email going out is the one from authorize.net, confirming the successful transaction.

Yes, it's possible to set up emails to be sent to you and your submitter, please check the following guides that will help you doing so: 

https://www.jotform.com/help/30-Explanation-of-Email-Notification-and-Autoresponder-Settings

https://www.jotform.com/help/25-Setting-up-Email-Notifications

https://www.jotform.com/help/26-Setting-up-an-Autoresponder-Email

I hope this helps.