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 IP and Domain Reputation Checker. From here you will be able to enter your IP or Domain and begin your request for removal.
Please note that the Project’s IP and Domain Reputation Checker 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.
Data for Integration
Enhance your service and create competitive advantage by integrating Spamhaus’ world-class IP and domain reputation data.
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.
Spamhaus Intelligence API
Threat intelligence data in API format to enable users to easily integrate metadata relating to threats with their own applications, programs, and products.
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.
The Blocklist Tester
A tool to help you check if your servers are correctly configured to use Spamhaus DNSBLs.
Help for the Project's legacy DNSBLs users
Using the Project’s legacy blocklists and suddenly experiencing email issues? This page may be able to help.
In depth information about the technical details and implementation of our products.
The Free Data Query Service is provided free of charge subject to the Fair Use Principles set out in these terms. Spamhaus reserves the right in its absolute discretion to restrict, revoke, or prevent access to the Free Data Query Service without notice where in its reasonable opinion the Fair Use Principles are not respected.
1. FAIR USE PRINCIPLES
You are not automatically entitled to the use of Spamhaus’ Free Data Query Service. Use of the Free Data Query Service is free of charge provided you meet all of the following criteria:
1.1. The Data Query Service is provided free of charge for non-commercial use by small and medium-sized organizations.
1.2. Your Data Query Service query volume must not exceed volumes reasonably expected in circumstances of non-commercial use.
1.3. We work on a Know Your Client basis. Therefore, you need to ensure that your contact details in the Customer Portal are up to date at all times.
2. COMMERCIAL USE
Use of the Free Data Query Service by companies, organizations, individuals, and networks with email traffic likely to breach or exceed the fair use principles set out above, or by ISPs or commercial spam filter services, will require a subscription to our commercial Data Query Service, a service designed for users with professional DNSBL requirements.
We cannot promise that the Free Data Query Service will be fault-free. If a fault occurs we will attempt to correct the fault as soon as we can.
The Free Data Query Service is provided to certain non-commercial user’s free-of-charge and subject to the principles of fair use. Accordingly, you agree that we shall have no liability to you for any losses to you caused by your use of the Free Data Query Service. This section 4 shall not limit or affect our liability if something we do negligently causes death or personal injury.
Apply for the Free Data Query Service