What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
To my understanding, you would like to have an email field added to your form and a way to validate it, is that correct?
To do that, please check the image below:
You may also want to set the email field as required so it will not be skipped.
I hope this helps. If, in any case, I have misunderstood your concern, please feel free to contact us anytime and provide us with more information.