MailFrontier Charges Ahead with 1,000th Enterprise Customer,
One Million End Users
Channel-centric Approach Pays Off with New Partnerships Legitimate Emails

PALO ALTO, Calif. – March 30, 2005– MailFrontier™ a leader in email security, today announced the company has signed 1,000 enterprise customers for its MailFrontier Gateway™ solution, providing comprehensive email protection against spam, phishing, viruses, directory harvest and zombie attacks for enterprises of every size. As further proof of MailFrontier’s extensive reach in the email security market, the company also announced it has one million end users globally.

MailFrontier reached the one-thousand customer mark with SSA Marine, the largest privately held container terminal operator and cargo handling company in the world. SSA Marine handles approximately 18 million container TEU’s (twenty-foot equivalent units) per year at its marine and rail terminals. SSA Marine has 150 operations worldwide, including Panama, Mexico, Chile, South Africa and New Zealand, and more than 10,000 employees.

“Our focus on helping enterprises stay one step ahead of email security threats is clearly resonating with customers,” said Anne Bonaparte, president and CEO of MailFrontier. “These are important and gratifying milestones for MailFrontier, our partners and our many loyal customers.“

The sale was made in tandem with MailFrontier channel partner Software House International (SHI), a global procurement outsourcing company and leading business-to-business solution provider.

“MailFrontier’s commitment to its channel program, including dedicated channel sales, marketing and technical support resources, allows us to provide greatly enhanced solutions to our customers,” said Janet Valvano, marketing manager at SHI. “Reaching the 1,000 customer mark is a true testament to MailFrontier‘s channel-centric approach.“

MailFrontier’s robust channel program has played a major role in MailFrontier’s rapid ascent to 1,000 customers and one million end users. Extending its market reach globally, MailFrontier also announced the following three new associate-level channel partners: Acuity Solutions, Cal Net Technology Group and Wolcott Systems Group.

The MailFrontier channel program is designed for enterprise channel partners with expertise in email and security solutions and services. The program provides partners with resources to effectively market, sell and support MailFrontier email security solutions. MailFrontier supports all of its channel partners at multiple program levels with a variety of benefits that include high margins, innovative SPIFs, information resources and tools.

About MailFrontier
MailFrontier is a leading provider of email security solutions that stop unwanted email by protecting enterprises from the growing number of dangerous and costly email threats while giving them the ability to anticipate and stop new threats as they emerge. MailFrontier offers a comprehensive defense against all known email threats, including spam, viruses, phishing, blended threats and other attacks, such as directory harvest attacks. The company has more than 1,000 customers, including HealthEast Care System, Peet’s Coffee & Tea, Pier 1 Imports, San Francisco Giants and Wyndham International. Founded in 2002, MailFrontier is headquartered in Palo Alto, California. For additional information, go to www.mailfrontier.com .

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MailFrontier and MailFrontier Gateway are trademarks of MailFrontier, Inc. All other company and product names are trademarks or registered trademarks of their respective holders.