IP blocklists filter the vast majority of malicious emails. However, using domain and hash blocklists protects against additional potential threats.| Spamhaus Technology
Spamhaus Blocklist contains IPs identified as sending spam, hosting malicious content, hijacking IP space, or acting like a bulletproof hosting company.| The Spamhaus Project
Spamhaus DNS Blocklists Terms of Use| The Spamhaus Project
IP and domain reputation data for commercial purposes, with real-time updates, for email filtering, network protection and investigations.| The Spamhaus Project
An SMTP traffic blocklist, listing port-25 based detections due to unsolicited emails, poor list hygiene, or compromised accounts sending malicious emails.| The Spamhaus Project
© Copyright Spamhaus Technology Ltd.| docs.spamhaus.com
Data Query Service using SpamAssassin| docs.spamhaus.com
The configuration we provide here is similar to the SpamAssassin configuration used for the VBSpam email security tests carried out by Virus Bulletin. We keep it tuned and update it from time to time. It uses the Spamhaus Data Query Service as the only external data source, and does other safe tricks to decrease the amount of spam passing through.| docs.spamhaus.com
The Domain Blocklist contains domains showing signs of spam or malicious activity, including those owned by bad actors, or hijacked legitimate domains.| The Spamhaus Project
A dataset containing end-user IP address ranges from which email should never be sent directly to the final destination.| The Spamhaus Project