# Spam and Open Relay Blocking System

> list of e-mail servers suspected of enabling spam

**Wikidata**: [Q198674](https://www.wikidata.org/wiki/Q198674)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spam_and_Open_Relay_Blocking_System)  
**Source**: https://4ort.xyz/entity/spam-and-open-relay-blocking-system