List Field: I need to have all the field of list obligatory and not only one

I need to have all the field of the list obbligatory, but doesn’t work well because if i write the name and don’t write the email, the form work the same. What I have to do to have all the fields of list obbligatory?

I think this is what you need:

https://gravitywiz.com/require-all-columns-of-list-field/