Products

Guardian

Abusix’s Guardian platform is an all-inclusive suite of tools to enhance organizational security and compliance

Guardian Mail

Industry-leading real-time blocklists against email threats like spam, phishing, and malware.

Guardian Ops

Advanced SaaS tool to completely manage network abuse.

Guardian Intel

The leader in cutting-edge threat intelligence to prevent attacks.
Solutions

Email Security

Industry-leading real-time blocklists against email threats like spam, phishing, and malware

Network Abuse Management

Advanced SaaS tool to completely manage network abuse

Threat Intelligence

The leader in cutting-edge threat intelligence to prevent attacks

Global Reporting

A free abuse reporting service that aims to create a global network security ecosystem

Telecommunications and Internet Service Providers (ISPs)

Protect your infrastructure from network abuse.

Mailbox Hosting and Email Service Providers (ESPs)

Block spam, phishing, ransomware, and business email compromise (BEC).

Data Centers and Cloud Service Providers

Manage your network in compliance with regulations.

Executives (CISO, CIO, CTO)

Improve your security investments with high ROI tools.

Abuse Desk & Security Analysts

Reduce false positives and automate your alert responses.

Email Administrators and Postmasters

Block spam and malicious emails while ensuring valid email deliverability.

Systems Administrators and IT Support

Manage your IT resources effectively to ensure optimal performance.
About

Company

Discover who we are and what we do

Why Abusix?

What sets us apart

Careers

Join a team of innovators

Contact Us

Connect with us today
Resources

Customer Success Stories

Real-world examples of how Abusix helps customers

Data Sheets

Technical overviews of Abusix products and services

Press Releases

Latest company news and announcements

Webinars

Watch past sessions and learn from Abusix experts

Abuse Reporting

Learn how to submit and manage abuse reports effectively

Portal

Manage your Abusix services and account all in one place

AbuseHQ (Legacy)

Access documentation for the previous AbuseHQ solution

Guardian Ops

Protect your infrastructure with our operational security platform

Guardian Mail

Block spam, phishing, ransomware, and email-based threats

Guardian Intel

Unique threat data you won’t find anywhere else

Abuse Contact Database

Report network abuse directly

Threat Intel Lookup

Free tool at your fingertips

Blackhole MX

Free tool to combat spam and abuse

XARF

Reporting used to stop network attacks
Blog
Contact Us

·

September 11, 2025

Guardian Intel Is The Most Accurate & Unique Threat Intelligence Feed

There’s something oddly satisfying about seeing a sketchy IP come across your logs and knowing exactly what to do with it. You don’t have to...

Guardian Intel

Latest Blogs

Abusix’s guide to cybersecurity, data trends, and expert insights.

All
Cybersecurity Insights
Product Spotlight
Success Stories
Life At Abusix

All
Cybersecurity Insights
Product Spotlight
Success Stories
Life At Abusix

Blog Post graphic for Blog Post "Abusix’s approach of changing the blacklist market"

Steve Freegard

·

March 8, 2021

Abusix’s approach of changing the blacklist market

Hello, and welcome to the first in a series of blog posts where we’ll be detailing each of our Abusix...

Guardian Mail

Blog Post graph for "Introducing-Potentially-Compromised-Account-Reporting"

Tobias Knecht

·

March 19, 2020

Introducing (Potentially) Compromised Account Reporting

Compromised Account Reporting is extremely important while compromised accounts are one...

Guardian Mail

Why You Need AbuseHQ's Inbound Processing Capabilities

Tobias Knecht

·

September 11, 2019

Why You Need AbuseHQ’s Inbound Processing Capabilities

Whether you manage an email service, an ISP, or a corporation’s...

Guardian Mail

Tobias Knecht

·

March 26, 2019

Announcing Abusix’s Lookup & Delist Checker

IP/Domain lookup & delist blocklists (formerly known as blacklists) have played...

Guardian Mail

How Spam Experts and AbuseHQ Together can Improve Your Outbound Mail Abuse Handling Process

Tobias Knecht

·

July 24, 2016

How SpamExperts & AbuseHQ Improve Outbound Mail Abuse Handling

At Abusix, our philosophy is that in order to truly implement effective abuse-handling, you need to see issues faster with...

Guardian Mail

Abusix provides the missing piece in network security allowing quick and reliable mitigation of network abuse and other cyber threats.

Linkedin Youtube Facebook-f Twitter Github

Tools & Services

Abuse Contact DB
Threat Intel Lookup
Blackhole MX
XARF

Resources

Blog
Case Studies
Abuse Desk Course
Glossary
FAQs

Real Time Stats

Threats Blocked Today: 9.5B
Active IPs Blacklisted: 1.2M+

Industry Associations

Imprint
Security
Privacy Policy
Terms of Service

Imprint
Security
Privacy Policy
Terms of Service

We Value Your Privacy

We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Allow All", you consent to our use of cookies.

Functional Functional Always active

The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.

Preferences Preferences

The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.

Statistics Statistics

The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.

Marketing Marketing

The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.

Manage options Manage services Manage {vendor_count} vendors Read more about these purposes

Customize

{title} {title} {title}

Guardian

Abusix’s Guardian platform is an all-inclusive suite of tools to enhance organizational security and compliance

Guardian Mail

Industry-leading real-time blocklists against email threats like spam, phishing, and malware.

Guardian Ops

Advanced SaaS tool to completely manage network abuse.

Guardian Intel

The leader in cutting-edge threat intelligence to prevent attacks.

Email Security

Industry-leading real-time blocklists against email threats like spam, phishing, and malware

Network Abuse Management

Advanced SaaS tool to completely manage network abuse

Threat Intelligence

The leader in cutting-edge threat intelligence to prevent attacks

Global Reporting

A free abuse reporting service that aims to create a global network security ecosystem

Telecommunications and Internet Service Providers (ISPs)

Protect your infrastructure from network abuse.

Mailbox Hosting and Email Service Providers (ESPs)

Block spam, phishing, ransomware, and business email compromise (BEC).

Data Centers and Cloud Service Providers

Manage your network in compliance with regulations.

Executives (CISO, CIO, CTO)

Improve your security investments with high ROI tools.

Abuse Desk & Security Analysts

Reduce false positives and automate your alert responses.

Email Administrators and Postmasters

Block spam and malicious emails while ensuring valid email deliverability.

Systems Administrators and IT Support

Manage your IT resources effectively to ensure optimal performance.

Company

Discover who we are and what we do

Why Abusix?

What sets us apart

Careers

Join a team of innovators

Contact Us

Connect with us today

Customer Success Stories

Real-world examples of how Abusix helps customers

Data Sheets

Technical overviews of Abusix products and services

Press Releases

Latest company news and announcements

Webinars

Watch past sessions and learn from Abusix experts

Abuse Reporting

Learn how to submit and manage abuse reports effectively

Portal

Manage your Abusix services and account all in one place

AbuseHQ (Legacy)

Access documentation for the previous AbuseHQ solution

Guardian Ops

Protect your infrastructure with our operational security platform

Guardian Mail

Block spam, phishing, ransomware, and email-based threats

Guardian Intel

Unique threat data you won’t find anywhere else

Abuse Contact Database

Report network abuse directly

Threat Intel Lookup

Free tool at your fingertips

Blackhole MX

Free tool to combat spam and abuse

XARF

Reporting used to stop network attacks

·