Spam mail is the content sent to the recipients even though they do not want it. They are emails that are mostly advertisements and are sent to a large number of recipients at once. Its main feature is that it is sent to a large number of people at the same time, is sent without permission, and is often with data stealing, virus infection or commercial advertising. The place where your server is located has nothing to do with entering or leaving the e-mail blacklists.
Some blacklist centers may charge you to blacklist your server ip address first and then remove them. they follow the rules of the centers.