Postini is the industry's leading provider of email security and management solutions that protect email communications by providing complete email intrusion prevention, effectively eliminating threats before they impact your network.
Unlike any other vendor, Postini's patented managed services model utilizes exclusive preEMPT™ technology to eliminate spam and viruses, stop denial-of-service and directory harvest attacks, safeguard content, and improve email performance - offering the most comprehensive protection available.

Postini's unmatched expertise is gained from operating the world's largest and most sophisticated email protection system.

As the leading email security provider, Postini processes more than 2.5 billion email messages per week for more than 4,000 companies worldwide.