How to allow only one vote per e-mail adres (IP adres can be the same). Can I control the email adres is an existing one?

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    IFMA
    Asked on April 01, 2015 at 08:57 AM
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    david
    Answered on April 01, 2015 at 11:38 AM

    Hi,

    You can indeed set your form to accept only unique submissions.  This check can also be set to a field within your form:

    http://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form

    Set this option to an email field within your form and it will only allow for one submission per email address.

    If you have any further questions, let us know and we will be happy to help.