Spamhaus

New Feature | Spamhaus Reputation Checker: Troubleshoot your listing

It’s not always immediately clear why your IP has been listed or how to fix it. To help, we’ve added a new “troubleshooting” step to the IP & Domain Reputation Checker, specifically for those whose IPs have been listed on the Combined Spam Sources (CSS) Blocklist - IPs associated with low-reputation email. Learn how you can diagnose the issue using this new feature.

How I’m fighting cybercrime with Spamhaus (and how you can too!)

Meet Jeroen Gui - student, founder of JustGuard, and a top contributor to Spamhaus' Threat Intel Community Portal. Passionate about making the internet a safer place, Jeroen submits thousands of malicious domains, URLs, and raw email sources every month. But what drives him to share his data, and how can you get involved too?

Between input and output: The enigma of being a Spamhaus threat investigator

Spamhaus processes millions of IPs and domains every day. Given the vast amount of incoming data, automation is a necessity. But is technology alone enough? Let’s find out. Meet one of our researchers, Jonas Arnold, as he sheds light on the threat investigators' role in Spamhaus and the fight against Internet abuse.