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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    In the newsletter form: if the client sign a second time is there is any possibility to tell her/him that already subcript the newsletter?

    Asked by Dalma on July 02, 2015 at 12:56 PM
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    Answered by Sammy on July 02, 2015 at 01:28 PM

    You can set the form limits settings for the unique question and then specify a field like an email address, this will ensure that only one email fields exists for each submission and thus will prevent the same user from re-submitting with the same email.