Case Study: Rackspace achieves better spam filtering and lower server load with Cloudmark

Rackspace - Customer Case Study

Rackspace Email & Apps, a hosted business-class email provider, needed a more accurate and scalable messaging abuse solution as its customer base and spam volumes grew. Its existing filtering tools were putting increasing strain on computer resources, so it sought a way to improve email security while continuing to use its Apache SpamAssassin platform.

Cloudmark provided the Cloudmark Authority plug-in for SpamAssassin, helping Rackspace Email & Apps achieve 98% accuracy in detecting and stopping spam and phishing with near-zero false positives. The deployment also cut filtering server usage by 50%, reduced CPU load, and delivered savings in infrastructure, power, and administration costs, improving customer satisfaction and operational efficiency.

Rackspace