Recipient email on auto responder missing

Hello, I cannot set up the auto responder, the recipient email dropdown is empty.
Any idea ?

In order to be able to setup and auto-responder, the form needs to have an email field:

After adding an email field, it will be displayed in the auto-responder wizard. You can see here more details:

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

Let us know if we can assist you further.