How can I setup an Autoresponder?

I'd like to set up a confirmation email to go to anyone who submits information to an existing form. This form already contains data/submissions and I need to be sure this won't get lost if I edit the form to create a confirmation auto-response for all future submissions. Is this possible? 

Thanks

What you need to setup is called an Autoresponder. We have a short but detailed guide on how to setup one on this page: Creating-a-Form-Autoresponder

If you stumble upon an issue while setting it up, don't hesitate to let us know.