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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    Is there a way to not allow free email addresses?

    Asked by transpay on July 14, 2015 at 04:17 PM

    Is there a way to only allow email fields with valid mail servers?

    On our B2B Automation program Pardot, there is an option to only allow people to submit emails with valid mail servers (paid email servers) to ensure that only business emails are entered. Is there a way to add this functionality to a jotform, where all free email that use free email servers (ie: gmail, yahoo, etc) receive an error message? 

    Here is a sample of one of our templates: http://pi.transpay.global/l/77232/2015-05-29/217sw 

    (simply try entering a gmail email address and you'll see the error)

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    JotForm Support

    Answered by BDAVID on July 14, 2015 at 07:48 PM

    Yes it is possible, when you are on the edit mode of your form, select your email field, click on the gear icon, then on Show Properties, you will see the Disallow Free Addresses option, just enable it:


    If you need anything else, please open a new thread, we will be glad to assist you.

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    Answered by transpay on July 15, 2015 at 03:51 PM

    Thank you so much for this. Just one last question. When I implement this change and export the files, which html/css/JS files would I need to update on my current form in order to implement this change? I ask this because I've already updated all the links from the HTML file and want to avoid having to do everything all over again.

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    JotForm Support

    Answered by BDAVID on July 15, 2015 at 05:40 PM

    If you use the downloaded full source code embedding option, you will need to update the code each time you do any changes on the editor.

    Other embedding options come with instant auto-update.

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    Answered by transpay on July 16, 2015 at 01:50 PM

    The free email addresses field does not show up for me. 

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    JotForm Support

    Answered by Mike on July 16, 2015 at 03:03 PM

    Please replace current Text Box based email field with E-mail field from Quick Tools. Then, you will see the "Disallow Free Addresses" option.

    Thank you.