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In the Notification settings, the "Recipient Email" should be your email address, your colleagues, or clients who'll get the response data from your form.
In the Autoresponder settings, the "Recipient Email" should be the person's email who fills out your form. It is attached to your email field from your form.
You can find more details in this guide: http://www.jotform.com/help/30-Notification-Autoresponder-Email-Details.