Blocking senders

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    Asked on April 10, 2014 at 03:31 AM

    Is it possible to block a sender from submitting a form?

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    Answered on April 10, 2014 at 04:12 AM


    Do you mean blocking a particular IP from submitting the form? Unfortunately, banning or blocking of IP address is not doable in the form builder. You cannot create condition logic for this since IP addresses are only checked/recorded after submission process.

    Instead you can by create a hide condition rule on a particular email address, just set it in that If the E-mail is entered then hide: Submit button.

    The easier way to do it is on your web server. You can blacklist IPs that goes to your website/domain where the form is embedded.

    Do let us know if this addresses the issue you were reffering to, looking forward to serving you further.


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    Answered on April 11, 2014 at 03:19 AM



    I am refering to blocking specific senders from posting spam messages via Jotform and enclose a copy of what I mean:


    Jessica Graham
    e-mail address
    Query or comment
    I volunteer some of my time to help nonprofits with their websites. I worked in IT for 23 years and was a professional webmaster too. I've helped eight organizations so far. Do you have any interest in getting a new website for free? I just helped an animal shelter and their site is really nice now. I helped a women's center before that. Sincerely, Jessica Graham

    This person (Jessica Graham) is based in the Philippines and wants your FTP details to turn your website into a bot. Obviously I do not want her to be able to post mails on my forms; how do I block her from doing this?

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    Answered on April 11, 2014 at 05:31 AM

    Hi Icypee.

    You can limit the number of submittions,use captcha or unique submittions.This can be done by following this link

    I hope that works for you.

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    Answered on April 11, 2014 at 07:39 AM

    Unfortunately, it is not possible to block some senders. We have prevention against automated spam. But, this is obviously filled manually by a person.