Single checkbox with custom values?

Hello,

I am trying to figure out how to create a single checkbox that allows the user to agree to receive emails if they check it. Here is what I am using: [checkbox email-me use_label_element “By clicking submit, I agree to receive emails from you”]. Is there a separate value flag that I can pass so that “Yes” or “No” is submitted in the email but doesn’t show up on the contact form?

What I’d like the user to see:
[] By clicking submit, I agree to receive emails from you

What I’d like the admin who receives the email to see:
I would like to receive emails: Yes (or No)