Blacklisted addresses and list count

Blacklisted addresses and list count

Hi, I've seen that your price depends on the number of subscriptions. My list has more than 5,000 address of which some are not valid anymore ( just a few have unsubscribed, opt-out, some are addresses not valid anymore, hard-bounce). So my valid addresses are less than 5,000. With my present provider those addresses are inserted in a blacklist list so that email won't be sent anymore. How are they treated in Zoho campaigns? Do they count as subscribers? Will I fit in the less than 5,000 price range or will you put me in the next range? Have you got something like a blacklist list so that I can add those addresses to that list and avoid emails to be sent?
Regards,
Andrea