AttachSTOR Closes Series B Equity Round with $7.5 Million in Funds.

Business Editors/High-Tech Writers

PHOENIX--(BUSINESS WIRE)--Sept. 8, 2003

Attachment Management Company Manages Costs,

System Performance and Administration Issues Created By

the Explosive Growth of Attachments in Email Environments

AttachSTOR Inc., the leading provider of Attachment Management software, announced today that it has closed its Series B equity round with a total amount of $7.5 million, bringing the total amount of equity financing issued, raised, and committed to $9.1 million, since the company's inception in 2000.

Prior investments include capital from individual investors in the Series A equity round and additional financing facilitated by GreenTree Partners. The Series B round was co-led by Canaan Partners and Trinity Ventures. AttachSTOR will use the new capital to aggressively expand its marketing, sales and service, while continuing to develop Attachment Management solutions that address the increasing impact of attachments in Microsoft Exchange email environments. Deepak Kamra, general partner at Canaan Partners, and Tim McAdam, general partner at Trinity Ventures, have been named to AttachSTOR's Board of Directors.

International Data Corporation, a leading industry analyst firm, estimates there will be a growth in the volume of corporate email from 3.4 billion per day in 2001 to 9.3 billion in 2004. Analysts say that 30% of corporate email has attachments and these attachments consume 90% of email resources -- bandwidth, storage and processing. AttachSTOR provides innovative, user-transparent Attachment Management solutions that address rising costs, system performance and administration issues created by the size and volume of email attachments. AttachSTOR reduces the annual Total Cost of Ownership for email systems 40%.

"We invested in AttachSTOR because it leads the industry in uniquely addressing the core problem associated with messaging and email systems -- attachments, while demonstrating a solid return on investment for IT management," remarked Deepak Kamra.

"Email is the killer application for corporate communication, and our belief is that AttachSTOR's technology will become a 'must have' addition for any enterprise email deployment," said Tim McAdam. "With Pat Sullivan at the helm, AttachSTOR has the leadership of a successful software industry pioneer -- founder of ACT! and SalesLogix -- to grow the company and bring its products to market successfully in order to dominate the Attachment Management market."

In May of 2003, Pat Sullivan was appointed president and chief executive officer of AttachSTOR. Sullivan, a two-time successful software industry entrepreneur as founder of ACT! and SalesLogix, has a long list of accomplishments and has received numerous awards. His accomplishments include being named one of the 80 Most Influential People in Sales and Marketing History by Sales and Marketing Management Magazine; twice awarded the coveted Ernst and Young Entrepreneur of the Year award; recognized as one of the ten most influential people in the Customer Relations Management (CRM) industry by Sales and Marketing Management Magazine; named Leader of the Year by the Arizona Software Association in 2000; and presented with the Pioneer of the Year Award by that same association in 2002.

"AttachSTOR is the only company focused on the multiple consequences associated with an overabundance of attachments within email systems. AttachSTOR elegantly tackles issues from performance to security, delivering dramatic results while reducing an organization's total cost of email ownership," stated Pat Sullivan.

About Canaan Partners

Canaan Partners (www.canaan.com) is a national venture capital investment firm formed in 1987. Canaan specializes in startup and emerging-growth companies in information technology and services, as well as health care and medical technology. Canaan Partners was an early backer in AdvancePCS (ADVP), Capstone Turbine (CPST), CommerceOne (CMRC), Concord Communications (CCRD), Copper Mountain Networks (CMTN), Esperion (ESPR), Genaissance Pharmaceuticals (GNSC), International Network Services (INSS), IntraWare (ITRA), Interact Commerce (IACT), iPrint (IPRT), Network Engines (NENG), ONI Systems (ONIS), Orapharma (OPHM), Pozen (POZN) and Praecis Pharmaceuticals Inc. (PRCS), along with dozens of other market-leading companies.

About Trinity Ventures

Founded in 1986, Trinity Ventures (www.trinityventures.com) is a value-added investor that provides capital, networks and resources to early-stage software, communications, and enterprise systems companies that offer critical infrastructure and services. Trinity's focus is to accelerate growth and improve the probability of long-term success for the companies in its portfolio by being an active, accessible partner. With more than $1 billion under management, Trinity Ventures has a proven track record of working in close collaboration with entrepreneurs to build lasting companies.

About AttachSTOR Inc.

AttachSTOR Inc. is the leading provider of Attachment Management solutions for Microsoft Exchange environments. Through the use of patent-pending technology, AttachSTOR solves the core problem impacting email systems, attachments. AttachSTOR optimizes email infrastructure performance, increases system security and reduces the total cost of ownership for email systems by 40% annually. For more information, visit AttachSTOR on the web at www.attachstor.com.

AttachSTOR is a trademark of AttachSTOR Inc. All other company, product and service names are the trademarks of their respective owners.