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Case Study

WebAfrica secures platforms using Spamhaus real-time DNS Blocklists

South African ISP, Webafrica, faces a constant balancing act: stopping malicious authentication attempts without disrupting legitimate users. Find out how Spamhaus real-time DNS Blocklists (DNSBLs), helped Webafrica identify and block these threats, protecting both its platforms and its customers.

News Article

We're hiring! Abuse Prevention and Remediation Specialist

Spamhaus is looking for an 'Abuse Prevention & Remediation Specialist' to join our Remediation Team. We’re looking for someone who:

 knows how email providers operate
, has sharp technical instincts
, communicates clearly and factually
, and isn’t afraid to ask the right questions
! Is that you — or someone you know? Apply here.

Report

Domain Reputation Update April - September 2025

Over the last 6 months a total of 43.5 million new domains were registered — 75% of them gTLDs — with .top (+94%) and .xyz (+103%) among the top three. Domain listings surged by 48.3%, and one registry saw particularly huge increases (can you guess which one?). Read the latest report here.

News Article

If you query the Spamhaus Project’s legacy DNSBLs via Korea Telecom, move to the FREE Data Query Service

If your email infrastructure relies on Korea Telecom’s network and you’re using The Spamhaus Project’s free legacy DNS Blocklists (DNSBLs) through the Public Mirrors, it’s time to make an important update. To ensure continued protection and prevent potential email disruptions, you should transition to the free Data Query Service (DQS) before September 17th, 2025.

Report

Botnet Threat Update January to June 2025

Botnet activity increased by 26% this reporting period; the first increase we've observed for over 18 months. Five new malware families entered the Top 20, and disappointing increases for a number of global networks hosting the most active botnet C&Cs. Read the full report.

Blog

PRESS RELEASE | Amazon Web Services (AWS) and Spamhaus collaborate to strengthen trust and security for users

Today, Spamhaus Technology, the trusted authority on IP and Domain reputation data, is pleased to announce a strategic collaboration with AWS, a global leader in e-commerce, cloud services, and technology innovation. It marks a significant advance in AWS's efforts to enhance security measures across its platforms and protect millions of customers worldwide as pioneers of Spamhaus Technology's Enhanced Reputation Service (ERS).

Blog

Reputation: It isn’t black or white (dotmagazine)

In the latest issue of dotmagazine from eco - Association of the Internet Industry, Sven Krohlas, Detection Engineer at Spamhaus Technology Ltd, how blocklists have evolved from simple binary “yes/no” filters to powerful cyber threat intelligence feeds that extend far beyond email filtering. Read the full article here.

News Article

Spamhaus Customer Portal Updates

Further to a systems upgrade on May 20th, regular users of the Spamhaus Customer Portal will notice some minor changes to the user interface, notably for those who use the Data Query Service. Read on for more details.

Report

Spamhaus Domain Reputation Update, Oct 2024 - Mar 2025

Find the latest insights from Spamhaus Project researchers into domain abuse and trends with newly observed domains, in the Spamhaus Domain Reputation Update, Oct 2024 - Mar 2025.

Report

Domain Update, Oct 2024 - Mar 2025

Find the latest insights from Spamhaus Project researchers into domain abuse and trends with newly observed domains, in the Spamhaus Domain Reputation Update, Oct 2024 - Mar 2025.