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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    Как я могу занести отправителя в черный список?

    Asked by bogdansinokop on December 08, 2015 at 01:24 AM

    Уже четыре дня приходит через форму отправки одно и то же письмо от одного и того же отправителя. Хотим занести его в черный список по параметру e-mail, чтобы перестать получать эти сообщения.

    Может ли это быть сбой самой формы отправки или это может делать только человек вживую?

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    JotForm Support

    Answered by Charlie on December 08, 2015 at 02:55 AM

    To confirm you are getting multiple submissions from one person, is that correct? That is quite not possible because there's a back end code that validates the input. It is possible that this is more related the user's end.

    You could do the following:

    1. First, add a captcha field to avoid your form being used as a spam.

     

    2. You can use the following widgets:

    http://widgets.jotform.com/widget/google_recaptcha 

    http://widgets.jotform.com/widget/playthru_captcha 

    http://widgets.jotform.com/widget/drawing_captcha 

     

    3. If you want to limit the submission by IP address or via it's cookies, you can follow this guide: http://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form 

    4. If you want to limit the submission by unique question, you can follow this guide: http://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question 

     

    I hope that helps.