How do I set up a forwarding email?

Do you want to send Email Notification to multiple recipients once your form is submitted? 

If that is the case, inside of this guide you can find how to sent email Notifications to multiple recipients: http://www.jotform.com/help/39-Send-Notifications-to-Multiple-Recipients 

You can also create multiple Email Notifications. 

In case that you want that your users also receive email once they submit your form, then you need to create Autoresponder email as well. 

If I did not understood your question correctly, please explain in more details what you are trying to achieve. 

Let us know if you need further assistance.