Come impostare l'obbligo di una sola registrazione per ogni utente

Come posso impostare l'obbligo di una sola registrazione per ogni utente? Ogni e-mail registrata potrà votare con la stessa mail una sola volta.

Hi agenziaideando, 

Thanks for reaching out to Jotform Support. Unfortunately, our Italian Support agents are busy helping other Jotform users at the moment. I'll try to help you in English using Google Translate, but you can reply in whichever language you feel comfortable using. Or, if you'd rather have support in Italian, let us know and we can have them do that. But, keep in mind that you'd have to wait until they're available again.

Now, let me help you with your question. To verify, you are asking how to limit the submissions to one per email address? Are you referring to this form? If so, let me show you how to do that:

• Open your form in Form Builder, and in the orange navigation bar at the top of the screen, click on Settings.
• On Form Settings, click Show More Options.
• Scroll down to Unique Field and set it to Email. That's it!

If the form fillers filled up the form using the same email address, it will not submit. If that’s not exactly what you’re looking for, can you explain a bit more, so I can help you better?

Once we hear back from you, we'll be able to move forward with a solution.