How to add a validation option on Exclusion list?
I have a form field question(with 3 form fields) where I want respondents to enter email ID.
I have a certain 'exclusion list'- A list of email IDs(30+) I don't want in the form fields.
My main question is that I want to add a validation where the form field wont go forward if Emails from the 'exclusion list' are entered.
Also, adding Validation on each and every email ID is an option, but a lengthy one. So please suggest something else.
Attaching Screenshot for better understanding.