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 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.
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.
Block malicious connections at the network edge, utilizing your existing Border Gateway Protocol (BGP) routers.
Border Gateway Protocol (BGP) Feeds deliver real time threat intelligence, allowing you to block connections from malicious IP addresses at the network edge, utilizing your existing BGP routers or Firewalls. This provides an additional layer of protection for your network without capital expenditure.
The feeds consist of Do Not Route or Peer (DROP), Botnet Controller List (BCL) and Extended Do Not Route or Peer (eDROP). These feeds are designed to have no false positives.
Configuring your BGP router to peer with the Spamhaus BGP router only takes minutes. After installing BCL and DROP in your router’s routing table, communications with botnet command & controllers (C&C) are stopped.
When used in conjunction with intrusion detection systems (IDS), e.g. Snort, the BCL identifies IP addresses of infected devices that are trying to contact botnet C&Cs, and blocks traffic to and from these devices.
This lists the worst of the worst; networks entirely controlled by criminal organizations, which send zero legitimate traffic.
These networks are solely used for spamming, hosting malware-infected sites, distributing phishing email, hosting botnet command and control (C&C) servers, and launching DDoS attacks against other networks. DROP also contains a list of IP ranges that cybercriminals have leased from ISPs for the same purposes.
Any traffic from your network to a DROP listed IP address is likely to be a user responding to a phishing email, or a device infected with botnet malware.
Addtional details about our Border Gateway Protocol (BGP) service, which utilizes this feed, can be found on our BGP Product page.
This dataset is specially designed for use with BGP Routers and some Firewalls. It is an advisory “drop all traffic” list consisting of single IPv4 addresses that are being used to host botnet command and control (C&C) servers to control infected computers (bots). Used on the network edge, it will prevent any infected devices on your network from communicating with a botnet C&C.
The BCL does not contain any subnets or CIDR prefixes larger than /32.
This dataset is an extension of the DROP list. It includes sub-allocated netblocks controlled by spammers or cybercriminals.
This list should be used in addition to the standard version.
You can trial our BGP feeds for 30 days for free. No credit card or payment details required.