How does Mailwizz handle opt-outs?


Lets say I have a customer that provides me a list of 100,000 subscribers. The customer also supplies a list of opt-out totaling 15000. How does Mailwizz handle both lists? Can both lists be imported then Mailwizz reads from the opt-out list and then doesn't send to that subscriber? How does that work? Thanks! :)
You'll import your 100k like you usually do and then from your list -> subscribers, you'll do a bulk action against your list by uploading those 15k emails and unsubscribing them from your master list. That's how it works :D