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.
I'm not sure about your question, what are you referring with "not to be an user"?
It could be possible to send the form to someone only using the email address and you do not need to have this user added on any place, only on the condition on your form where will be specified that the form should be sent to this email address once it is submitted.
But provide us more details about what are you referring to, we will be glad to assist you on what you are trying to achieve.