The Spam and Open Relay Blocking System (SORBS) was conceived as an anti-spam project where a daemon would check "on-the-fly", all servers from which it received email to determine if that email was sent via various types of proxy and open-relay servers.

Site Down for Maintainance

The SORBS service is currently undergoing maintenance. During this time, web-site and IP reputation tools will be unavailable. Query services will remain available during this time, however updates will be delayed until maintenance is complete. Please check back with any inquiries as we are unable to process these during maintenance. We apologize for any inconvenience and appreciate your patience.

Copyright © 2002-2013 by SORBS | Terms & Conditions | Privacy Policy