The Spamhaus Project

Spamhaus is a leading provider of threat intelligence solutions specializing in cybersecurity. Their Exploits Blocklist (XBL) is a real-time database that identifies compromised IPv4 and IPv6 addresses used by hijacked devices exploited by third-party attackers. The XBL features approximately 2 million listings, with around 650,000 new detections every day, enabling email administrators to filter out malicious emails and improve overall security.

In addition to the XBL, Spamhaus offers a range of other services, including the Spamhaus Blocklist (SBL), Combined Spam Sources Blocklist (CSS), and Policy Blocklist (PBL), all aimed at enhancing email filtering efficiency. They provide tools for reputation checks, data APIs, and guidance on best practices for maintaining positive IP reputation.

Spamhaus’ comprehensive threat intelligence empowers organizations to reduce the risk of email-related security incidents, lower operational costs, and improve their overall email infrastructure. With their free datasets and commercial options, Spamhaus is dedicated to safeguarding millions of mailboxes worldwide.