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Prevent Duplicate Email Submission via Form

Hi, my website has a page where users can download resources that requires a email submission. Is it possible to set the forms to not re-submitting or prevent same email submission?

For example, user uses ‘user@gmail.com’ is submitted in the form to download a resource once.

  1. He enters ‘user@gmail.com’ again in the same form submission and we still get the form submission log/ record but won’t be notified.
  2. He enters ‘user@gmail.com’ again in the same form submission and form knows it’s a email that’s already been submitted and won’t do anything.

I am also open to implement any third party solutions as well.