how to verify if the email is in our database?

when the user submit the form with his email, i wouldlike to know if it's possible to check if the email is in our database.

And then, after check, if yes forward to a positive thanks page.
if not, forward the user to negative page : the email doesn't exist.

thank you

Hi Alyah,

Thanks for reaching out to Jotform Support. It is not possible to check if the email address already exists on the Tables and then send the user to a negative page, but we can use the Unique Field feature that prevents duplicate submission. Here's how to do it:

1. In Form Builder, in the orange navigation bar at the top of the screen, click on Settings.

2. Click on Show More Options.

3. Scroll down to Unique Field.

4. Select Email form element.

We also have a guide about How to Set Form Limits Based on a Unique Field that you can check out.

Give it a try and let us know how it goes.