article will guide you on how to create Email Confirmation Sets
Confirmation Set Name: (Put in name for your confirmation set)
Which May Access this Confirmation Set: (Can choose multiple list)
can apply either one or both:
Confirmations: (Let recipient confirm their subscription)
Confirmations: (Let subscriber unsubscribe your mailing list)
fields is available when you choose the selection, fill in the detail
and click 'Add' to complete the process.