Abusix Mail Abuse Management: Block Malicious IPs and Domains

Improve network reputation by blocklisting abusive IPs and domains from sending spam and malware to your hosted mailboxes.
Most blocklists today are policy-based. Infrastructure gets listed because it falls into a category someone decided should be blocked, whether or not anything inside it has actually sent an attack. That is where false positives come from.Abusix works the other way round. A global sensor and spam trap network observes live attack traffic 24/7, processing over 80 million signals a day. When an IP, domain or URL is seen sending spam, malware, or phishing, it is classified on that observed behavior and published to our DNSBL within a tenth of a second. A built-in Welcome list keeps known-good infrastructure from being listed by mistake.This ensures that every entry traces back to a real, observed attack event.
Abusix Mail processes +80M spam trap signals daily and updates threat reputation within 1/10th of a second.
This, in combination with our unique built-in Welcome list that protects known-good infrastructure, means you can reduce false positives by +40 %, instantly.
Our email security is built on a single principle: every listing must be earned through direct observation of malicious behavior.
IPs, domains, and URLs are automatically classified based on observed behavior, delivering you a +55 % reduction in spam complaints.
Curated blocklists lag behind real-world attack infrastructure, so we built a DNSBL covering the full mail threat surface.
Abusix Mail is based on empirical threat intelligence that captures live attack traffic 24/7 across the internet, granting our customers +94 % inbox placement results.
Your abuse desk shouldn’t start every morning triaging delisting requests and blocked accounts tickets.
Abusix Mail filters inbound mail at scale using real-time DNSBL data and a built-in Welcome list, so fewer legitimate messages get caught and fewer complaints reach your team.
"Abusix Mail has dramatically improved our ability to keep user inboxes clean and secure while reducing our team’s workload, allowing us to focus on higher-value tasks and strategic goals."
Most blocklists are built on policies and editorial decisions—they decide what to block based on category rules. Abusix only lists what has actually been observed attacking. Every single entry traces back to a real observed attack event. And with our built-in Welcome list that flags known-good infrastructure as safe, your false-positive rate drops on day one.Run it in parallel to what you already have in place. Test it out for free. Start your trial today.
Go to customer stories for more insights on how network providers use Abusix to manage network abuse →
Learn how Abusix Mail blocks abusive IPs and domains from sending spam and malware to your hosted mailboxes.
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Book a demo, and we will run our data alongside yours, so you can size the gap in your current setup against your own traffic before you commit.
Telcos, ISPs, and global enterprises use Abusix network abuse management and real-time threat intelligence to protect their customers from malicious traffic and email-borne threats.
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