Community and System Banks Turning to Postini to Meet Growing Email Security Requirements.

Business Editors

REDWOOD CITY, Calif.--(BUSINESS WIRE)--May 20, 2003

Ease of Implementation, Advanced Security Capabilities and

Sophisticated Administration Functions among

Key Benefits of Postini Service

Postini (www.postini.com), the leading email security services provider, today announced that several of the nation's leading community and system banks are deploying the company's email security service to protect their corporate networks from spam and viruses. As with other Fortune 500 and mid-sized businesses, banks and other financial institutions are experiencing increased operational threats and business liabilities from email security breaches. In addition, these corporations are also facing a host of confidentiality, security, record keeping and other compliance requirements mandated by FDIC audits. For security and compliance reasons, many of these institutions are seeking a solution to their needs from Postini.

For community and system banks including AgFirst Farm Credit Bank, City National Bank of Florida, First Commercial Bank, and First Reliance Bank, Postini's Perimeter Manager(TM) helps block spam and viruses from reaching their employees. Perimeter Manager protects email systems at the perimeter of the network, ensuring that a corporation's valuable network capacity and other email system resources are not wasted processing spam, email viruses and SMTP-based attacks.

According to Chris Hutchinson, vice president of operations for Florence, South Carolina-based First Reliance Bank, "The Postini service has made a dramatic difference in the amount of unwanted spam reaching our employees and partners. Not only has Perimeter Manager been extremely effective, it is easy to deploy and even easier to administer, allowing us to set usage policies for the various employee groups within our banks."

AgFirst Farm Credit Bank, headquartered in Columbia, South Carolina, provides funding and financial services to 24 Farm Credit and AgCredit associations in 15 eastern states and Puerto Rico. These associations provide real estate and production financing to more than 80,000 farmers, agribusinesses and rural homeowners. "Postini blocks all of our incoming email that is classified as spam, which is about one fourth of our total messages," said Robert Zeman, vice president, information management services at AgFirst Credit Bank. "The fact that this unwanted email is now not even touching our network is a huge enhancement to the overall security of our corporate network."

First Commercial Bank, headquartered in Seguin, Texas, is a locally owned and managed financial institution. First Commercial Bank focuses on small business and relationship banking. "We have been extremely pleased with the Postini service and, frankly, we were surprised at just how much email -- more than 50% -- coming through our networks was actually spam," said Paul Thompson, MIS officer at First Commercial Bank. "Not only is Perimeter Manager extremely accurate and reliable, we have been impressed with its ease of deployment."

About Postini

Postini Inc. is the leading email security solution provider. The company's award-winning technology provides email system security and management for more than 1,200 customers worldwide. Postini's services block unsolicited email from reaching end users and provide the only email system intrusion prevention solution now available. Postini's managed services secure both email connections and content in real time, to provide a unique level of email system security and reliability. More information on Postini can be found at www.postini.com.

Postini is a registered trademark of Postini, Inc.