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SonicWALL Takes on Non Delivery Report (NDR) Spam Surge

June 25, 2008

SUNNYVALE, Calif., June 25 /PRNewswire-FirstCall/ — SonicWALL, Inc. , a leading secure network infrastructure company, today announced SonicWALL Email Security 6.2, which features the Bounce-Address-Tag-Validation (BATV) specification to combat an increase in Non-Delivery Report (NDR) spam or backscatter messages. With the BATV mechanism turned on, the product can distinguish a legitimate NDR message from an NDR spam message — dropping the connection from the NDR spam server.

NDR spam is yet another form of spam mimicking a useful email capability — the bounce back message received when a valid email is unable to make it to its final destination inbox. By implementing BATV, each outbound message is “tagged” with a private key, transparently to the sender. Arriving NDR messages are checked for the “tag” to ensure the validity of the inbound NDR email with legitimate NDR messages being delivered to the receiver as desired. Because SonicWALL Email Security can process both inbound and outbound email on the same system the actual implementation of BATV can be seamless to the customer as well as the end-users of the system.

“More than 90 percent of the email messages our customers receive are spam, phishing, viruses, or policy violations — simply junk mail,” said Andrew Klein, Email Security Product Manager for SonicWALL. “For NDR spam, the real solution is to not only to block invalid messages and allow legitimate ones, but to make the process easy for the administrator. With email security 6.2, administrators will no longer have to write, manage and update countless policies and rules for NDR spam. BATV is an easy and effective method to detect and drop fake NDR messages with minimal overhead and no additional administration.”

Other SonicWALL Email Security 6.2 features include:

— Enhanced international effectiveness by improving language detection capabilities. This allows SonicWALL Email Security to properly determine the language of an email regardless of the tricks a spammer may use to disguise or misuse different character sets. In this release Dutch, French and Swedish are added

— Enhanced performance monitoring which allows administrators to see a visual representation of performance metrics on the SonicWALL Email Security system

— Simplified Licensing — SonicWALL has eliminated user-bands and now allows a customer to choose any SonicWALL Email Security Appliance or Software system for their organization. Subscription services can be purchased and stacked in user packs of 25, 50, 100, 250, 500, 750, 1000, 2000, 5000, and 5000+ as needed

For more information about SonicWALL Email Security 6.2, please visit http://www.sonicwall.com/.

About SonicWALL, Inc.

SonicWALL is committed to improving the performance and productivity of businesses of all sizes by engineering the cost and complexity out of running a secure network. Over one million SonicWALL appliances have been shipped through its global network of ten thousand channel partners to keep tens of millions of worldwide business computer users safe and in control of their data. SonicWALL’s award-winning solutions include network security, secure remote access, content security, backup and recovery, and policy and management technology. For more information, visit the company web site at http://www.sonicwall.com/.

Safe Harbor Regarding Forward-Looking Statements

Certain statements in this press release are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. The forward-looking statements include but are not limited to statements regarding the features and benefits associated with email security 6.2. These forward-looking statements are based on the opinions and estimates of management at the time the statements are made and are subject to certain risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. In addition, please see the “Risk Factors” described in our Securities and Exchange Commission filings, including our Annual Report on Form 10-K for the year ended December 31, 2007, for a more detailed description of the risks facing our business. All forward-looking statements included in this release are based upon information available to SonicWALL as of the date of the release, and we assume no obligation to update any such forward-looking statement.

NOTE: SonicWALL is a registered trademark of SonicWALL, Inc. Other product and company names mentioned herein may be trademarks and/or registered trademarks of their respective companies.

SonicWALL, Inc.

CONTACT: Colleen Nichols of SonicWALL, Inc., +1-408-962-6131,cnichols@sonicwall.com; or Ben White of Bite Communications, +1-415-365-0392,ben.white@bitepr.com, for SonicWALL, Inc.

Web site: http://www.sonicwall.com/




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