Spamhaus Blocklist (SBL) listings are moving
Any abuse desk worker or Trust and Safety team member who has received a Spamhaus Blocklist… Continue reading Spamhaus Blocklist (SBL) listings are moving
Collaborate Disseminate
Any abuse desk worker or Trust and Safety team member who has received a Spamhaus Blocklist… Continue reading Spamhaus Blocklist (SBL) listings are moving
The modern use of NAT poses a problem for both users and reputation vendors alike. Network… Continue reading The conundrum that is the modern use of NAT at a carrier grade level
On October 4th the Internet Systems Consortium (ISC) issued an article highlighting a problem… Continue reading QNAME Minimization and Spamhaus DNSBLs
If you haven’t noticed, the Threat Intel Community is in beta, and to be honest, it will be… Continue reading The beta nature of the Threat Intel Community Portal
For many years Spamhaus has been asked if it accepts data from third parties. The standard… Continue reading Want to submit data? Be our guest!
Further to requests from the community we’ve reinvigorated the ASN-DROP. With a new algorithm,… Continue reading The return of the ASN-DROP
Writing “Qakbot” and “takedown” in the same sentence is quite something…. Continue reading Qakbot – the takedown and the remediation
The recent spate of informational listings from our researchers has created waves in the sending… Continue reading Poor sending practices trigger a tidal wave of informational listings
Q4 saw a 23% rise in the number of new botnet command and controllers (C&Cs) identified… Continue reading Spamhaus Botnet Threat Update: Q4-2021
If you query our free DNSBLs and use a Cloudflare DNS resolver to make those queries, please… Continue reading SERVICE UPDATE | Spamhaus DNSBL users who query via Cloudflare DNS need to make changes to email set-up