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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    Asked by sotostg on August 14, 2014 at 03:04 PM
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    JotForm Support

    Answered by Welvin on August 14, 2014 at 05:24 PM

    Hi,

    Please check this guide: http://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question. This feature is to simply stop the same email address from submitting to your form. However, it's not possible to just block a single email address from a specific submitter.

    Thank you!