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.
How can I block an IP Address to prevent multiple submissions from one formuser?Asked by cnaughton on November 01, 2016 at 12:12 PM
how do i block an IP address from someone filling out the form multiple times.
In order to block an ip address to prevent a formuser from filling in your form multiple times you would need to change the submission type for unique submissions.
Please see https://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form for details.