Subscribe Users Automatically to Mailchimp
The Mailchimp addon allows you to subscribe WordPress users to a specific email list immediately after they register via your custom registration form.
Adding New Users to a List
If you want to add users to a select immediately they signup using your registration form then follow the instructions below.
Go to ProfilePress>>Settings>>Mailchimp and select the list you want users added to. Scroll down to Automatically Add New Users and check “Enable” then save changes.
NB: Activating this will render all list selection in registration forms inactive
La fin! 😁