Looking to respond to after the harvest kc invite.

Hi, this is JotForm, a powerful online application that allows anyone to quickly create custom online forms. Could you please let us know what you are looking for?

Are you looking to respond the users who submit your forms? You can setup an Email Notification, and put the Email form field(where the users enter their email address) in the "Reply-to Email" dropdown option: https://www.jotform.com/help/25-Setting-up-Email-Notifications

Let us know if you need more help, we will be glad to assist you.