In addition to these traditional content filtering methods GMS Anti Spam Update Service also includes Commtouch's Recurrent Pattern Detection (RPD). RPD is based on the most fundamental characteristic of spam and email-born Malware - its mass distribution over the Internet. Recognized by key industry analysts as a leading technology in email outbreak detection, RPD achieves the industry's best detection/accuracy performance (Osterman Research) and "detects and blocks spam in the first few minutes of an outbreak"(IDC).
