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) Firewall
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 a parter
Discover our partners and how they can support you.
Become a partner
Learn about the benefits of being a Spamhaus partner and how to get started.
Discover a wide range of blog posts, case studies and reports.
Spamhaus’ insight into malware, botnet C&Cs, and the domain reputation landscape.
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.
Posted by Sarah Miller on 16 Dec 2021
We've brought everything together in our customer portal to streamline access to various aspects of our DNS Firewall service. Whether you need to request a hostname removal from a zone or if you want to check which threat feeds you have access to, you can do it all from one place. Here's an outline of what's new by service type.
This is the DNS Firewall service used by those who manage their own DNS infrastructure.
1. Access and Settings – Here, you can view what service you have access to, i.e., the standard feeds, premium Zero Reputation Domain, or just the four basic free feeds.
You can also update the IP addresses you are pointing to our servers.
2. FAQs – these speak for themselves!
3. Host Checker – This tool enables you to search for a hostname easily, review the listing details, and request removal from the zones.
4. Ticket Center – you can view any open removal requests (for DNS Firewall Threat Feeds) via the Ticket Center. This can be accessed from Support in the header menu. When the removals team sends you an update on your ticket, you will always receive an email notifying you that a new response is waiting for you.
Please note: This tool is only available for commercial customers; it is not available to users of the free feeds.
5. Config Check – This shows which zones you are currently protected by:
For users who utilize Spamhaus’ DNS Firewall Managed Service.
1. Access and Settings – Enter and amend the endpoint IP addresses you are pointing to our master servers.
2. Rewrites – View the following statistics:
3. Logs – View the rewrites/blocks for a specific zone, day, or the 1,000 most recent rewrites that your network has made. We provide the following data for each rewrite:
If you want to export this data, you can download the look-ups in a CSV format.
To request the removal of a hostname from a zone, you can simply click on the hostname in the list and explain why you are making the request before submitting it.
4. Host Checker – This tool enables you to search for a hostname easily, review the listing details, and request removal from the zone(s).
5. Ticketing Center – you can view any open removal requests (for DNS Firewall Threat Feeds) via the ticketing center. You can access this from Support in the header menu. You will always receive an email for ease of use when a new response is sent to you from the removals team.
6. Config Check – This shows which zones you are currently protected by:
Now that you’ve seen the added functionality for requesting removals from our DNS Firewall Threat Feeds, you may be asking when this will be available for removals from our DNSBLs?
The answer is within the first half of 2022. As soon as we have further information on this, we’ll be in touch.
In the meantime, if you have any feedback for us regarding these portal updates or would like to see additional functionality, please don’t hesitate to get in touch with us via the contact form in the Customer Portal.
Applied at the DNS level of your infrastructure, these threat feeds automatically stop users from accessing malicious sites including phishing and malware dropper websites.
These threat feeds can be integrated with existing recursive DNS servers, or for those who don’t manage their own DNS, we have a managed service available.
17 March 2019
When choosing DNS Firewall Threat Feeds its key to ensure you pick the right ones based on the relevant level of protection your business requires, otherwise you could be making things more tricky than they need to be.
14 September 2018
With the ever increasing demands on IT, security and networking teams, tools that reduce workloads, which don't cost the earth, are always welcome. One such tool is DNS Firewall. Find out how it works, and the benefits it provides.
11 September 2018
With such a huge growth in the DNS Firewall market over the past few years there are plenty of options to choose from. Read our Top 10 questions for your next DNS Firewall provider.