Welcome to SpamRATS!

SpamRATS is one of the industry's leading IP Reputation lists providing RBL (Real-Time Blackhole lists) services and data feeds. With over 15 years of threat data, it is one of the most reliable sources of threat intelligence. We provide several different IP Reputation lists to better suit your individual needs.

SpamRATS Whitepaper

Learn why SpamRATS is the right solution for you, read our whitepaper.

Subscription Info

Interested in using SpamRATS? Learn more here.

No longer able to query SpamRATS? Find out more here.

Want to contribute to the fight against Spam? Please visit our Subscription page for more information.

Other AntiSpam Tools

Dynamic Regex - Dynamic Regular Expression Testing is part of our suite of tools, used to identify address spaces that are not meant to be mail servers.

Blacklist Monitoring - HetrixTools will monitor all your IPs and notify you if they get blacklisted, highly recommended

MIPSpace - MIPSpace is a list of IP Addresses associated with known commercial marketing companies.


RATS-Dyna - Probable PC or home connection infected with a Trojan, Bot, or Emailer Program


RATS-NoPtr - An IP Address which has no reverse DNS, and probably the home of a SpamBot


RATS-Spam - An IP Address that has been shown to be abusive


RATS-Auth - An IP Address that has been shown to be used in an Authentication Attack

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