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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    How to Prevent Spammed Form Submissions and Ban the IP

    Asked by rdolmat on May 20, 2013 at 12:02 PM

    I need to ban an ip address from spamming my form submissions. How can I do that?

    Submissions spamming unique submission limit submission ban ip strict check captcha field spam submissions spam prevent spam
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    JotForm Support

    Answered by KadeJM on May 20, 2013 at 12:39 PM

    You can actually do this by changing your form submissions to Unique Submissions then set it to " Strict Check ". This will prevent an IP from sending more then one submission. Also, something else that will help with that is Limiting the Submissions as well. Additionally you may find it useful to apply a Captcha Field to your form which can help too.

    If you continue having spamming issues on your form please let us know so that we can help you to further prevent this problem.