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I'm sorry, I'm not sure what you meant here? Would you like to map an email field as a recipient for an autoresponder which will be triggered once a form is submitted? Is that correct? If you wish to create an autoresponder, please refer to this guide: https://www.jotform.com/help/26-Creating-a-Form-Autoresponder
To learn more about our email alerts, I strongly advise checking this guide: https://www.jotform.com/help/30-Explanation-of-Email-Notification-and-Autoresponder-Settings
Let us know if I misunderstood your concern.