How to Prevent Users from Submitting the Form?

Hello, how can I block certain email addresses or phone numbers from filling out our form? We have someone spamming our form.

Hi christinaEZETech,

Thanks for reaching out to Jotform Support. You must set up conditional logic so that if people enter those email addresses or phone numbers, the submit button is hidden. Let me show you how:

1. In Form Builder, go to Settings at the top.
2. Select Conditions on the left.
3. Add a new Show/Hide Field condition.

The conditional logic is as follows:

Check out the screencast below to see my results:

We also have a guide about How to Hide or Show Multiple Fields Conditionally that you can check out.

Give it a try and let us know if you have any other questions.

Thank you, that worked.