Strengthening trust and safety across the internet
Spamhaus Project is the authority on IP and domain reputation. This intelligence enables us to shine a light on malicious activity, educate and support those who want to change for the better and hold those who don't to account. We do this together with a like-minded community.
Are you listed in one of Spamhaus' blocklists?
Do you have problems sending email? Do you need to check if an IP address or domain name is on one of our blocklists?
Submit malicious activity to the Threat Intel Community Portal
Be part of our community; share IPs, domains, URLs or raw source of potentially malicious activity or threats.
SubmitSpotlight on Spamhaus data reputation statistics
Last updated: 10th April 2025Countries
Networks
gTLDs
ccTLDs
Registrars
Malware
Countries
News feed
📣 NEXT WEEK | If you use Microsoft infrastructure to query Spamhaus’ free DNSBLs and don’t change your email config by April 9th 2025, you may face issues with your email stream.
Read this blog to learn the simples steps you need to take to stay protected for free ⤵️
https://www.spamhaus.org/resource-hub/emai...l-security/query-the-legacy-dnsbls-via-microsoft-move-to-spamhaus-technology-s-free-data-query-service/
📣 NEXT WEEK | If you use Microsoft infrastructure to query Spamhaus’ free DNSBLs and don’t change your email config by April 9th 2025, you may face issues with your email stream.
Read this blog to learn the simples steps you need to take to stay protected for free ⤵️
https://www.spamhaus.org/resource-hub/emai...l-security/query-the-legacy-dnsbls-via-microsoft-move-to-spamhaus-technology-s-free-data-query-service/