Automatic email notification through forms

Carolyn Tong
edited 12/09/19 in Smartsheet Basics

I created a form which includes a text field for the person's email address.  I want to create a workflow to trigger sending an email to the person when a specific field is changed.  However, the person's email is NOT part of the contacts.  How can I tell Smartsheets to email the person that a change has been made?  There does not seem to be a way for me to notify from a specific field...only from contacts.