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Postini™ is the industry's leading provider of email security for the enterprise. Awarded PC Magazine's Editors' Choice award for best corporate anti-spam service, Postini's flagship Perimeter Manager protects and secures the email systems of over 36,000 enterprises from malicious email attacks including spam, viruses, and Directory Harvest Attacks. Using Postini's high performance heuristics engine and secure processing infrastructure, the Postini enterprise messaging security platform guarantees 99.999% availability and provides a comprehensive set of policy-based email filtering tools and detailed real-time reports for email administrators who require the highest level of visibility and control of their email systems.

Postini™ has captured and is currently doing mail filtering for Merrill Lynch, Hormel Foods, Rand McNally, Skywest Airlines and The NHL just to name a few of their corporate accounts.

Postini™ services secure and managed email systems, without the need for software or hardware. Using patent-pending pass-through technology (versus store-and-forward methods). Email bound for a company's email server is processed in real-time through a highly secure service architecture.

Within milliseconds, Postini's award-winning email security solution separates spam and viruses from legitimate messages. Legitimate email is instantly passed on to the destination mail server. Suspicious email can either be quarantined in a web-based, password-protected message center for administrator or end-user review, or tagged and delivered. The entire process is fully automated and virtual – valid emails are not stored or written to disk, nor are they physically accessed by any persons other than the recipient or authorized administrator.

Postini Perimeter Manager is:

Accurate. Postini's world-class heuristics and ensemble scoring engine captures up to 99% of all spam with false positive rates as low as 1 in 80,000 messages.

Reliable. Backed by a 99.999% service level guarantee.

Easy to Manage. The most comprehensive suite of monitoring and management tools available today, allowing email administrators to monitor the Postini service and their own email infrastructure in real-time.

Because Postini handles billions of connections every day, they are constantly developing the latest, highly accurate intelligence on what is happening on the internet. When they block a virus from one sender, they alert the entire network. So your protection stays ahead of the "bad guys." This "network effect" makes Postini's protection more efficient than any firewalls or anti-spam software can be. This is possible with an expansive, multi-tenant operations capability that only Postini can offer.

The Postini Real-time Evaluation and Message Processing Technology, or PREEMPT™, provides five layers of protection against all email-borne threats. Backed by a 100% anti-virus service level agreement, PREEMPT includes the following components:

Postini Threat Identification Network® (PTIN) technology to block connections from malicious internet protocol (IP) addresses

Signature-based anti-virus scans with signature updates checked every 60 seconds

Anti-virus heuristics that monitor current virus activity and help predict the likelihood of future attacks

Statistical analysis and evaluation of message components for level of threat

Proactive checks on attachments to block or quarantine specific file types including compressed files

The Postini Threat Identification Network blocks messages coming from specific IP addresses based on observed, malicious behavior. This means that your company is protected as soon as a new threat is detected anywhere on the network. Because the blocks are based on real-time IP traffic analysis, your protection does not need to wait for spam, virus, or worm signatures.

This allows Postini to block attacks at the network layer to give you the best protection from threats, coupled with the highest performance and scalability.

The Postini Anti-Spam Engine (PASE) is a heuristic framework, developed by Postini to analyze the content of messages and learn as spammers present new threats. PASE can block emerging threats, such as image spam and other day-one attacks, because it has learned to identify these new threats before they can cause damage. It can also address a variety of traffic such as instant messaging (IM) and web, and supports your policies by taking the appropriate actions based on your unique settings by user, group, and company.

High-performance characteristics and multi-lingual capability make it ideal for global deployments.