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.
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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.
Yes, this is possible, you can enable the feature of the email field to confirm the email entered by user. Here's a quick guide.
1. Add the email field found under the "Quick Tools" section. Click Show Properties.
2. Inside the Properties window, enable the "Confirmation" option.
Enabling the above option will let your users to confirm the email they entered.
I hope this helps. Do let us know if you need more information on this.