Quest Software, Inc. (Nasdaq: QSFT), a leading provider of application, database and infrastructure management solutions, today announced that it has acquired AfterMail Limited, a privately held leader in enterprise e-mail intelligence. The acquisition expands the e-mail platforms supported by Quest Software’s archive solution from purely Microsoft Exchange to heterogeneous enterprises using IBM Lotus Notes, Novell GroupWise, Sendmail and other SMTP-based systems.

“This acquisition helps us continue to win in the storage management and compliance archiving space. In addition, it will allow our customers to extend beyond storage and compliance to enable collaborative information sharing and integration,” said Steve Dickson, general manager, Infrastructure Management Solutions, Quest Software. “Together with the people and products of AfterMail, Quest now strengthens its e-mail archiving solution to offer truly intelligent e-mail archiving that enhances the overall value and investments companies make in their critical messaging infrastructure.”

Quest plans to retain the AfterMail product development team based in Wellington, New Zealand. To further underscore its commitment to the Australian and New Zealand markets, Quest also plans to increase its sales focus in the region with the establishment of a New Zealand sales office.

“With the support and brand strength of Quest, our leading-edge technology and our aligned visions, we see this acquisition as a way of accelerating our growth as a leader in the strategic e-mail archiving market segment,” said Rod Drury, chief executive officer of AfterMail. “This is an exciting investment in our team, and in New Zealand. As a part of Quest, we now have access to a rapidly expanding global market.”

Under the terms of the acquisition, which closed January 4, 2006, Quest acquired all of the outstanding shares of AfterMail for a cash payment of approximately $14.7 million plus potential performance-based consideration of up to $30 million in cash over three years. Additional financial details will be provided during Quest Software’s Fourth Quarter and Fiscal 2005 Earnings conference call to be held on February 8, 2006.

Further details on Quest Software’s integrated e-mail archiving solution will be announced later this month.

About Quest Infrastructure Management

Quest Software's Infrastructure Management solutions simplify, automate and secure Active Directory, Exchange and Windows, as well as integrate Unix and Linux into the managed environment. Quest Infrastructure Management products deliver comprehensive capabilities for secure management, migration and integration of the heterogeneous enterprise.