Warning when using email-less form

If you create a form that doesn't include the standard email field, you will get a warning from Unstack when you go to add that form to a page. 

The reason for this warning is that without an email, Unstack isn't able to save the leads as contacts (we use the email as the root of the contact). That said, we will still try to send lead data collected by this form to any integrations that you have configured.