4 ms·
Mail servers are all pretty much blacklisted by IP unless you work some kind of deal with someone somewhere.
by ohiovr 5y ago
Mail servers are all pretty much blacklisted by IP unless you work some kind of deal with someone somewhere.
- nulbyte 5y agoNot really. By definition, a blacklist is a list of things to block, and things not found on the list get a pass. Most use IP address or domain. Unless someone has reported something, they don't get added. The only real exception I can think of is "residential IP addresses, " as some blacklists will try to keep up with multiple ISPs' residential assignments to block them. Even then, they still have to he added to the list to block. Most have forms easily accessible to request review or unblock. Even Spamhaus has a very easy process, and I find them to be rather more aggressive then the others.