Who is Spamhaus - the leader in IP & domain reputation data

About Spamhaus Project's Heritage

Originally founded by Steve Linford in London in 1998, Spamhaus Project, a non-profit organization, is now based in Andorra. In the early days of the Project, Steve and like-minded individuals focused on tracking IP addresses that were sending spam, listing them on a DNS Blocklist (DNSBL). Email administrators used this list to filter their emails and still do today.

Over time, the research has expanded to include IPs, domains and ASNs associated with not only spam but also phishing, malware, and ransomware. As requests grew for real-time delivery at volume, we made this data available via a partner, Spamhaus Technology . Our legacy DNS blocklists and DROP lists are still offered today at no cost, along with a host of other free tools.