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.
The Reputation Portal
A tool for ASN owners to get visibility of their IPs’ reputation and proactively manage listings.
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.
Spamhaus is uniquely placed in the industry because of our experience, strong ethics, impartiality, and the quality of our data.
Our focus is simple; to protect the internet and its users from malicious activity.
With over two decades experience, we do this by providing best in class threat intelligence datasets. These datasets protect email systems and networks, as well as enabling users to investigate incidents more quickly.
The most experienced researchers and developers are handpicked from across the globe, ensuring that the best threat hunters in the industry are working on your behalf.
Our blocklists and datasets are delivered in real time, ensuring you are protected from threats as soon as the researchers have observed and listed them.
With over 2 decades of experience, we understand the rapidly changing threat landscape.
Our data plugs into your existing infrastructure, so you incur no additional hardware or license costs.
You will have a team of highly experienced researchers working on your behalf 24/7.
Over 80 commercial servers across the globe provide a reliable service with low latency.
Data is drawn from multiple sources worldwide, and listing policies are compiled by working together with the industry.
Leading global technology companies trust our data. We are currently protecting over 3 billion mailboxes.
We're here to help make the internet a better place - Simon Forster, CEO
Regardless of your company size or industry, our partners can help you with buying and providing first line technical support for the services that best fit your unique security requirements. Spamhaus Partners are located throughout the world; this helps you to find a partner who is nearby, understands your regional markets and culture, in addition to speaking your language.
We work closely with our Preferred Partners to ensure they are fully trained across all our services, and are updated with the latest releases and products developments. Current Preferred Partners are listed below.
As long as the internet exists, there will be miscreants who wish to abuse it. Phishing, malware and spam are not going to go away, and our focus is to help organizations protect themselves using our data and leveraging their current infrastructure. This provides affordable protection that is effortlessly deployed across email systems and networks.
For flexibility in how you wish to work with Spamhaus, we provide 3 different Partner Tiers. To find out more about partnering with Spamhaus, please contact us.
Geschäftsführer: Peer Heinlein
Schwedter Str. 8/9B
+49 (0)30 40 50 51 – 0
Jan Stenbecks torg 17
164 40 KISTA
+46-8-5016 12 00
420 W. Huron- 1st Floor
5-3 Nihonbashi Tomiyacho
I.B Nihonbashi Bldg
+81 3 4405 5766
1769 Kelkar Bag
Besides ICICI Bank
7F-2., No.89, Sec. 1, Beixin Rd
New Taipei City