IP Address Blacklist : It is a list of IP addresses or domains that are known sources of spam. Blacklisting occurs for any reason, usually when there is a suspicion of sending spam to an IP address. Continuously blacklisting will affect your IP reputation because your IP address will be recognized as a regular source of spam.
This tool will show you the list of spam reporting services colored in Red by which your IP Address is blacklisted.
Lear more about the IP Address Blacklist