You have been tasked with creating a list of contacts that have unsubscribed from all email communication. Should you build this list?
A) Yes, you should create it to monitor the health of your contact database.
B) Yes, you should create so you can re-engage those that have unsubscribed after a year.
C) No, it is illegal to store contacts that have unsubscribed in your database.
D) No, you should be focusing your time on subscribers, not those that have unsubscribed.