With the heavy and growing reliance on email for business communications, the ability to keep email servers running smoothly and spam free is becoming mission critical. If legitimate email becomes falsely classified as spam it can be equally disastrous for a corporation as critical communications can become impaired. Wasteful email server build-out, downtime, unknowing transport of spyware, greyware, intrusions or even embedded viruses are all side effects of unwanted spam email. Fortinet's FortiGuard Antispam Service provides automatic updates to FortiGate, FortiClient and FortiMail systems to reduce the amount of "obvious spam" at the network perimeter. To increase detection rates, the FortiGuard Antispam Subscription Service deploys "dual scan" technology to quickly identify, tag, or block obvious spam messages.