The Black Lists Checker is a tool created to help monitor multiple IP addresses with multiple anti-spam blacklists (also known as DNSBL and DNS blacklists).
This tool is useful to mail server administrators and web hosting providers. It helps to troubleshoot e-mail delivery problems.
You can create your own lists of DNSBL and IP addresses. Both may have unlimited size.
There are 2 configuration files with the program parameters:
- DNSBL.txt - place your list of DNSBL servers here.
- IP.txt - place your mail servers IP addresses here. (By the way: 127.0.0.2 is a test IP address, it is blacklisted in all black lists)
There are some popular DNSBL services already, but you can add your favourite ones.
No installation required! Just run it and enjoy.




