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 can I limit the e-mail submission field only to valid e-mail addresses?

    Asked by colectivocoral on October 03, 2010 at 04:45 PM

    Is it possible for a form to check if the e-mail a subscriber claims as theirs is real and then validate the field?

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    JotForm Founder

    Answered by aytekin on October 04, 2010 at 08:05 AM

    You can check if the email address looks valid. Click on the email question on the form builder, and then click on "Validation" button on the toolbar and select "Email".

     

    However, it will not actually check if the email address really belongs to the user. It only checks if the email address has a correct syntax. Such as the @ and . characters.