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 Spamhaus Public Mirror users
Using the Project’s Public Mirrors and suddenly experiencing email issues? This page may be able to help.
In depth information about the technical details and implementation of our products.
Datasets providing additional insight into networks and their associated internet resources, helping to reduce investigation times for security professionals.
Our Passive DNS data and extended blocklists provide increased insight, shining a broader light on malicious activity. This helps security teams and researchers speed up investigations and verify potential threats.
Many of these datasets can be consumed via the Spamhaus Intelligence API, and Passive DNS is available via a web portal or continuous datafeed. The Passive DNS PRO plan is available for a free 30-day trial, and our Basic Passive DNS subscription is free.
Passive DNS data is collected with special probes activated on a DNS resolver. The probes record anonymized data every time a DNS resolver is unable to return a domain name from its caches and sends a recursive request to another name server (cache miss).
Spamhaus data is collected through numerous recursive DNS servers from around the globe. A broad network of service providers and a community of security researchers who are dedicated to combatting DNS abuse share this data for the good of the internet.
Researchers at The Spamhaus Project utilize Passive DNS data daily in their research and threat hunting.
The following records are listed in Spamhaus’ Passive DNS data: A, AAA, NS, MX, CNAME, TXT, SPF, SOA, SRV, PTR. Date and time stamps are included with each record.
Multiple search functions are available in the Spamhaus Passive DNS tool; these simplify and quicken the ability to search the billions of Passive DNS records listed.
This dataset lists IP addresses belonging to devices that are showing signs of compromise. This can include traffic from the Internet of Things (IoT) devices alongside more traditional spam. Potential reasons for our research team to list IPs on the eXBL include:
Metadata in the eXBL includes; timestamp of the last connection, the botnet’s name controlling infected nodes, the IP address and port number of the command and control server for some connections, the countries where compromised devices are located, and the type of malware used to exploit devices.
This data is available via the Spamhaus Intelligence API (SIA) to enable easy integration with SIEMs and SOCs, along with other security and reporting applications.
Developers can get limited free access via our Developer License.
This dataset only focuses on SMTP traffic i.e. port-25 based detections. These target spam and other low-reputation sources. Triggers for listing on the CSS include:
Metadata in the eXBL includes; timestamp of the first seen date and last connection, the HELO string used in the SMTP session triggering the detection, the geolocation of the IP address.
This provides detailed information on each domain listing and is available via an API. This enables you to query the DBL engine, returning a JSON record for each domain that you are investigating.
The Enhanced Domain Blocklist (eDBL) helps you to track a particular domain’s score over a longer period, or combine Domain Blocklist data with information from your own threat intelligence platform.
Data included in the eDBL: DBL score, the date that the domain was first seen and last seen, along with additional data fields.
To find out more about the eDBL or for a 30-day free trial, please complete our contact form.
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