I would like that both me and the user would receive an email when the form is submitted

How can I set up automatic email confirmations to someone who submits a form? how to link email address to form so submissions are received as email?

If you would like to receive a copy of the submitted form you need to setup an email notification:

http://www.jotform.com/help/25-Setting-Up-Email-Notifications 

If you would like the user to receive a confirmation you need to add an auto-responder:

http://www.jotform.com/help/26-Creating-a-Form-Autoresponder 

Let us know if we can assist you further.