How to make a white-listed server for email hosting?
I need a server with white-listed IP for using as a mail server. However, when buying a server (almost any kind), the IP can be blacklisted due to abuse of other users in the network. Many IP blacklisting systems black list group of IPs in a network instead of individual IP of a spammer.
Do you have any idea, how to keep a server IP clean for a mail server?
EDIT to general comments: I have servers without email hosting, but its IP has been blacklisted because of spam from IPs in the same subnet (other servers, which are not mine).