IP Reputation

Manage IP & domain reputation wisely - they're valuable assets!

Trust. That’s a word with huge connotations. The Oxford Languages defines it as: believe in the reliability, truth, or ability of. But how can you believe in the reliability, truth or ability of an IP address or domain? In our world it boils down to reputation.

A website to effect change

We're thrilled to share our brand-new Spamhaus Project website with you! It was high time for an overhaul, but now we have a website that reflects who and what Spamhaus is today. The new site offers a wealth of education, support, and free data to the community covering topics such as IP and domain reputation, malware, DNS Blocklists, threat intelligence, service providers, and more.

There's no such thing as a "free" app!

Downloading a free application and installing it on an internet-connected device can lead to you not being able to send email. This is because some apps allow third parties to access your device without your knowledge. These third parties then use your network connection for malicious purposes, causing your IP address to be listed as unsafe.

Poor sending practices trigger a tidal wave of informational listings

The recent spate of informational listings from our researchers has created waves in the sending community. But perhaps more pertinently, it’s highlighted some pretty poor sending practices. Here’s further explanation, helpful hints and tools, and background to help calm the waters.

What does Spamhaus do?

I write this article for all of you out there who aren't deeply embedded in this industry because the people I work with are remarkable. The world should know what they are doing to quietly protect all those who say “Spamwho?” be that your grandma or the network nerd at work.

New IPv6 CIDR searching tools released: grepcidrs

Moving into IPv6 presents many, many challenges. Among the myriad tasks which are required in that transition, many IT admins and techs will find the need to search and filter IPv4 and IPv6 addresses matching CIDR patterns in data related to both those IP addressing systems. The standard tool for...