This publicly available DNS blacklist is permanently regenerated by the NiX Spam project of the German IT magazine iX. It contains IP addresses of spam senders and hash values (fuzzy checksums) of incoming spam. The blacklist can be used to protect mailservers against spam. But checking a single DNSBL should not be the only criterion for spam.
Is the information on our site wrong or incomplete? You don't want us to monitor your blacklist? Or do you operate a similar blacklist? We would like to hear from you!