Welcome to SpamRATS!

Protect your servers with SpamRATS IP Reputation – trusted for over 15 years in battle tested production environments worldwide.

Stop Email Threats at the Source

Anyone can use SpamRATS. It works with all major email platforms, you can start protecting your network today, works like any other RBL service, you simply need an API key.

IP Reputation is your Best Defense

Lightweight, fast, and reliable – designed for any mail platform that supports RBL / DNSBL lookups. More than just Spam - SpamRATS! identifies the Really Annoying Trouble Spots (RATS!) that spammers, botnets, and attackers abuse every day.

World Class Reputation, Lowest False Positive Ratings

SpamRATS is one of the world's leading IP Reputation lists, with consistently one of the lowest false positive ratings, your most reliable sources of threat intelligence.

SpamRATS! is the culmination of years of global data feeds powered by mThreat IP Intelligence, combining probes, sensors with real world threat activity. With SpamRATS! you are not just blocking spam and junk email, you are protecting your users and your infrastructure.

Email Providers Information

Want to know more about how to leverage SpamRats? Best RBL lists to use where..

Using SpamRats RBL

SpamRats can be used like any other RBL, and free for most people. RBL setup tips for your mail server are here

Subscription Info

SpamRats to protect your customers? Start by getting an API Key, or join our technology network. Learn more here.

Troubles accessing SpamRats RBL's? It might not be you, it might be your DNS provider. Find out why here

Other ways to contribute..

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

SpamRATS Whitepaper

Need to share information about us, read our whitepaper.