inps.de DNS IP blacklist (INPS)
This blacklist contains IP addresses from which inps.de received mails, that were classified as spam. It's very important to know, that a listing here doesn't mean that you are a spammer, but it means that inps.de (or one of the reporting clients) received at least one spam message from the listed IP address.
The inps.de-DNSBL exists since 2007-12-29. It is queryable free of charge via the Domain Name System and can be used in conjunction with other DNSBL's for a better spam filtering, although it was primarily designed to protect our own systems.
We monitor this blacklist since 2015-02-17. More information: http://dnsbl.inps.de/