How to track who RSVP's?

Also, we send out mass invitations for certain events is there tracking of who RSVP's and is it set so that the guest can't invite others?

Hi Saysha,

You have an option to set the form in Private. Private Form means only people who are invited and have accepted the invitation to become assignee(s) can access your form. Accepting means having an account with Jotform to access the form. Every person who completes the form will be added automatically to Jotform Tables where you can see who filled out the form along with the details collected. You can also set up a Notification email where you will receive an email every time fill out the form. 

Let us know if you have any other questions.