Hi Evan,
Thanks for getting back to me.
I’m running v2.2.1
My shopping cart (WP eStore) allows me to change the setting for single opt-in. It was set up a while ago and I didn’t even remember. The plugins were conflicting and the shopping cart won!
I received an error within the cart files when I tested the mail form and then checked. So sorry to have wasted your time.
I appreciate your help!
Thanks, Crystal