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.

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    Is there a way to limit respondents to those with a known email address

    Asked by Naugahyde on July 18, 2017 at 04:38 AM

    Is there a way to limit respondents to those with a known email address? Can I limit each email address to one response? This is similar to an election/vote scenario as described in https://help.surveymonkey.com/articles/en_US/kb/Can-I-create-a-poll-or-voting-environment.

    This is a re-post of a comment on How to Send a Form via Email

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    JotForm Support

    Answered by liyam on July 18, 2017 at 06:13 AM

    Somehow there is a possibility to limit the form submission against certain email address domains by using conditional logic on your form. Here is a sample condition which you can set

    To know more about conditional logic on forms, please check this guide: https://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic

    If you have questions or if you need assistance, please let us know.

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    Answered by Naugahyde on July 18, 2017 at 07:01 AM

    Unfortunately, that does not help. We have members using all sorts of domains (e.g. gmail.com, yahoo.com, etc.) and not just those from one domain.

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    JotForm Support

    Answered by jonathan on July 18, 2017 at 09:41 AM

    I think you can achieve the limiting of the submission to that one known email address only. Meaning the same email address cannot be used anymore on the 2nd time to submit the form. The email address used will be a unique value of the form.

    User guide: How-to-set-Form-Limits-Based-on-a-Unique-Question

    Example, if I submitted your form using my email jonathan@jotform.com then no other respondent will be able to submit the form using the same email address.

    Let us know if this still will not work for you.