Utility To Validate Email and Phone Number - Image 38

Doc ID 2768577.1 provides what the validations are but I can't find any documentation on which fields these validations are applied to. I have found some email address fields that are checked and some that are not. Want to know if there is a list of which are being validated and which aren't. Also if there is any configuration that can be done to turn this on for any fields that aren't being checked, specifically the email address on the Supplier - Contacts tab and the Supplier - Location - Payables tab.