PRESS RELEASE

GULF BREEZE, FL—March 9, 2009—AppRiver, LLC, a leading provider of e-mail messaging solutions, today announced the company expanded its security portfolio to include a best-of-breed, comprehensive, and cost-effective Web filtering solution to protect businesses of all sizes against today's Web threats. By adding SecureSurf Web Protection to its in-the-cloud security services, AppRiver protects companies from multi-vector blended threats by thoroughly securing every connection to the Internet.

"As online threats continue to increase in sophistication, organizations have to use Web filtering options to better shore up their defenses," said Richard Stiennon, chief research analyst, IT-Harvest. "Hosted solutions include the option to add layers of protection and eliminate the need for deploying and supporting applications internally. When these Web filtering capabilities are delivered using the SaaS model, organizations can easily scale as they grow without the cost of new software or hardware."

Given today's economic landscape, businesses are looking for ways to operate more efficiently with a secure infrastructure they can rely on. Mitigating the risk of exposure coupled by the need to protect information from serious threats, including spam, viruses, worms, phishing, malware infections, maliciously-coded Web sites, Internet misuse, and other security compromises remain top of mind for most organizations.

To protect businesses against Web-based threats, AppRiver is launching SecureSurf Web Protection, which provides a combination of Web filtering and malware protection that can be deployed from a single PC to an entire enterprise through a reliable, hassle-free security-as-a-service deployment option. Customers receive comprehensive security protection for Web traffic, from enforcing an Internet use policy and minimizing productivity drains to reducing legal liability and receiving immediate protection against Web-borne malware.

"With the ever increasing number and complexity of Internet threats, Web protection ranks high among the concerns of our customers," said David Irvine, president, Irvine Consulting. "Since 2006, Irvine Consulting has used AppRiver's e-mail security services to successfully meet the security needs of our growing customer base. We are excited about AppRiver's new SecureSurf Web protection service because of its breakthrough 'intent based' malware protection, ease of use, and price. The result is improved control and productivity for organizations without the worry of inadvertent infection while connected to the Web."

With no applications or hardware to install or deploy, organizations simply redirect Web traffic to AppRiver secure data centers for a high level of protection. This on-demand, subscription-based security solution includes the following capabilities:

No software or hardware required for transparent user authentication. Ensures protection against malware and spyware threats " even if threats are hidden in blended content or hidden in encrypted SSL traffic " with intent-based filters that block today's constantly changing global threat landscape. Scales to the largest enterprise, easily integrating with existing technology investments with no noticeable latency. Stops threats before entering the network with comprehensive reputation-based filtering protection. Eases administration through informative reports and dashboards, offering an instant view into an organization's Web traffic. These corporate, user, and departmental reports depict valuable information such as top categories accessed, bandwidth consumed, bandwidth saved due to blocking, and malicious or suspicious sites requested. Easily defines Internet usage policies for any corporation.

"We have seen a growing demand for Web protection security in our market," said Michael Murdoch, CEO of AppRiver. "Today, the vulnerabilities discovered in Web browsers leave computers wide open to exploitation as they are technologically sophisticated, comprised of multiple components, and spawn numerous variants. That's why it is so important for companies to uphold prudent security practices."

SecureSurf Web Protection is offered at $3.95 per user per month. For a free 30-day trial, please visit www.appriver.com.

About AppRiver AppRiver is a software-as-a-service (SaaS) security provider offering secure messaging and Web solutions to businesses of all sizes. In addition to spam and virus protection, the company provides a complete managed service for Microsoft' Exchange. With more than 35,000 customers around the world " and an impressive 97 percent customer retention rate since its inception " AppRiver is one of the largest e-mail security managed service providers worldwide. In 2009, AppRiver was voted "Best Channel Vendor" by Business Solutions magazine, receiving the highest published scores in Service/Support, Product Reliability and Channel Friendliness. The company was also identified as one of the top 100 companies to watch in 2008 by Red Herring magazine. For more information, please visit www.appriver.com.