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.
abuse.ch Real Time Feeds - coming soon
Actionable data signals on cyber threats, with a focus on malware and botnets, to strengthen threat investigations, detections, and help prevent data breaches.
Integration | MDaemon
Block over 99% of email-borne threats with Spamhaus’ real time DNS blocklists and MDaemon® Email Server.
Integration | Halon
Safeguard your email stream using Spamhaus’ real time DNS blocklists and Halon’s secure email infrastructure.
Integration | Messageware
Enhance Microsoft Exchange protection by blocking malicious IP addresses from connecting to your on-premise server in real time.
A wide range of datasets, providing multiple layers of protection. They can be plugged directly into your existing hardware, making them an affordable choice.
Exploits Dataset Statistics
View the geolocation, hosting network, malware names associated with each detection, and other critical data points.
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.
abuse.ch Threat Intelligence Feeds – coming soon
URLhaus, MalwareBazaar, ThreatFox, YARAify, Feodo Tracker and Sandnet enrich CTI feeds and support vulnerability mangement.
Find out more about us.
Learn more about Spamhaus; who we are, and what we do.
Find a partner
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 26 Apr 2022
We’re delighted to provide our commercial customers with easy access to our IP and domain Reputation Checker via the Customer Portal. Here's an outline of the benefits, a quick overview of this new functionality, and a step-by-step guide to using the Checker in the Customer Portal.
Here’s a quick review of how to use the Checker in the Customer Portal:
To take an in-depth look at this functionality keep reading, or view this video.
Once you have logged into the Customer Portal, search for an IP, domain, or hostname, using the search bar in the header. You can do this from any page within the portal.
If no listing exists, you will see the following:
Where a listing does exist, you will see something similar to this:
To get more details on the listing, click on Show detail.
Suppose the IP address you searched for has an SBL listing. In that case, removal requests from this blocklist can only be made, via email, by the Internet Service Provider (ISP) responsible for the IP in question. An ISP’s abuse team usually handles these requests. SBL removals cannot be done via the Checker.
Where an IP is listed on additional blocklists, e.g. CSS, XBL or PBL, you will not be able to request removal from these blocklists until the SBL listing has been resolved.
Take time to read ALL the information provided by the delisting team. Now is not the time to rush ahead and request removal if you have not taken the recommended remediation steps.
If you do, the resources will end up re-listed, and where frequent re-listings occur, automatic removals are denied. This enables the delisting team to engage with you directly to resolve the issues before another removal takes place.
Once you’re confident you’ve resolved the issue(s) that led to your resource listing, check the box at the bottom of the listing information page and click Next steps.
Complete the pop-up box, select your name from the drop-down box, explain what remediation steps you’ve taken and why you wish to remove the IP or domain and click Submit.
If an automatic removal has been allowed, then you will see the following screen, and no further action is required:
Where automatic removals are not permitted, then the Checker will automatically raise a ticket and navigate you to the Ticket Center:
You can access this from two places:
1. Via the top menu from Support / Ticket Center:
2. If tickets are waiting for your review, i.e., the delisting team has responded to you, a notification will appear on your Dashboard:
From the Ticket Center, you can sort by various fields by clicking on the table header:
To view the full details of a removal request, including correspondence with the delisting team, click View next to the relevant ticket in the Ticket Center.
Simply view/open the relevant ticket to send them a message. Whenever the delisting team responds to a ticket, you will receive an email notification advising you that a response is waiting in the Ticket Center.
We’re always looking for ways to improve the tools we’re providing our customers, so please reach out to us via the contact form in the Customer Portal with suggestions for future releases.
Spamhaus Intelligence API (SIA) contains context-rich metadata relating to IP and domain reputation. Integrate this data with your applications to enhance existing data feeds, or consume as an independent data source.
In this easy-to-consume format, SIA can be used for threat detection and investigation, risk scoring, customer vetting, validation and much more.
To ensure our DNSBLs protect your email stream, a simple tool is available called the Blocklist Tester. It’s quick and easy to use; once you have verified an email address associated with your email server, test emails are sent. These emails contain resources listed on our blocklists and should be rejected.
Once the test is complete, a full detailed report is available, and the SMTP exchange of each email sent is available to help you understand where any problems may lie in your configuration.
Spamhaus’ Data Query Service (DQS) is an affordable and effective solution to protect your email infrastructure and users.
Using your existing email protection solution, you will be able to block spam and other related threats including malware, ransomware, and phishing emails.
The service has never failed and utilizes the longest established DNSBLs in the industry.
20 October 2022
We bear good news regarding domain name abuse: almost all numbers are down compared to last quarter! See the Q3 trends and find the insight into some of the tactics used by bad actors and advice to circumvent falling victim.
18 May 2022
Desideriamo informare tutti i clienti di LibraEsva che utilizzano le liste di blocco legacy gratuite di Spamhaus, disponibili su spamhaus.org (ad es. con query in “zen.spamhaus.org”), che questo servizio non sarà più disponibile a partire dal 1° giugno 2022.
1 April 2022
If you've been using Spamhaus Project's free DNSBLs you need to be aware this is a legacy service. With an easy config change you could be getting more value from the Spamhaus data.