Have you been blocked?
All blocklists are researched and managed by The Spamhaus Project.
Simply click on the link below, which will take you to the Project’s Blocklist Removal Center. From here you will be able to enter your IP or Domain and begin your request for removal.
Please note that the Project’s Blocklist Removal Center is the only place where removals are handled.
IT and security teams consistently face multiple business challenges. Discover how our solutions can help overcome some of those issues.
From processing issues, to email-borne threats our blocklists easily integrate with your current email set-up to improve anti-spam & anti-virus email filtering.
Employ our threat intelligence to increase visibility across security events, reveal potential weaknesses in your network, and threats to your brand.
Stay on top of the latest threats and proactively combat botnet infections, and other forms of abuse, with our solutions.
From clicking on phishing emails to visiting malware dropper sites, our threat intelligence provides automatic protection for your users.
Our products provide additional layers of security for networks and email. They also present security teams with additional insight into malicious behavior.
Border Gateway Protocol (BGP)
Block the worst of the worst at your network edge, taking advantage of your existing BGP-capable routers. Configuration only takes minutes.
Data Query Service (DQS)
Benefit from industry-leading real time blocklists. These DNSBLs easily plug into your existing email infrastructure to block spam and other email threats.
A powerful research tool to investigate relationships between internet infrastructures. Quickly pivot to new areas of concern to rapidly investigate potential threats.
Immediately block connections to dangerous sites, including phishing and malware dropper websites. A ‘set and forget’ solution.
A wide range of datasets, providing multiple layers of protection. They can be plugged directly into your existing hardware, making them an affordable choice.
Border Gateway Protocol (BGP) Feeds
Do Not Route Or Peer (DROP) and Botnet Controller List (BCL) datafeeds can peer with your existing BGP-capable router.
Domain (DBL), Zero Reputation (ZRD) and Hash blocklists (HBL) enable you to block content in emails, filtering out a higher rate of email-borne threats.
Data for Investigation
Passive DNS and extended datasets give you additional information on internet resources. They provide deeper insights into incidents and possible threats.
DNS Firewall Threat Feeds
A wide range of feeds to apply to your DNS recursive server. Choose the right level of protection for your organization.
Spam (SBL), Policy (PBL), Exploits (XBL) and Auth (AuthBL) blocklists allow you to filter email from IPs associated with spam, botnets, and other threats.
Find out more about us.
Learn more about Spamhaus; who we are, and what we do.
Find out who we work with and how you can become a Spamhaus Partner.
Discover a wide range of blog posts, case studies and reports.
Commonly asked questions about Spamhaus products and processes.
In depth information about the technical details and implementation of our products.
Find a wealth of threat intelligence related content here including blog posts, reports and case studies.
29 September 2020
Analyzing your network, and beyond, for potential cyber threats is hugely time-consuming. However, utilizing Passive DNS data can quickly highlight possible issues. Spamhaus' expert researcher Carel, will be walking you through real-life scenarios to demonstrate how Passive DNS can help you.
6 October 2020
Data Query Service enables email provider, Universo Online (UOL) to protect millions of users from spam and other malicious email threats while freeing-up 20% of the team’s time resources.
Spamhaus produces many different DNSBLs (blocklists). The question is which ones to apply where? This simple guide provides you with all the information you need.
Grasp the specifics relating to email source code, so you can apply IP and domain threat intelligence to the right place in your email filtering process.
23 September 2020
Discover how Passive DNS data can help brand specialists and marketing teams quickly identify potentially harmful domains.
30 July 2020
Botnet operators certainly were busy during in lock-down. It's unfortunate to report a 29% increase quarter on quarter of newly observed botnet Command and Controllers (C&Cs) after last month's reduction.
29 July 2020
Watch this on-demand webinar, where our malware and industry experts, Raashid and Matt, provide an overview of the Emotet botnet.
7 July 2020
Watch this on-demand webinar with Emanuele and Matt from The Spamhaus Project to learn how to increase your block rates, using content blocklists. These DNSBLs an help you block malicious email from large ISPs you previously wouldn't have been able to block.
18 May 2020
It's a well-known fact that filtering emails using IP blocklists (DNSBLs) blocks the vast majority of malicious emails. It's effective and economical, using minimal computational power. So why should you also use domain and hash blocklists for filtering?