News Release

Leading Email Performance Company Partners With National Nonprofit Dedicated To Curing Multiple Sclerosis

New York, NY and Boston, MA- November 29, 2005 - Return Path, Inc., the leading email performance company, today announced a wide-ranging philanthropic partnership with the Accelerated Cure Project for Multiple Sclerosis, a national nonprofit dedicated to curing multiple sclerosis by determining its causes.

Inspired by a former employee diagnosed with MS, Return Path decided to focus the company's charitable donations and activities on an organization devoted to curing the disease. Accelerated Cure Project, founded in 2001, began as the Boston Cure Project for Multiple Sclerosis and branched out nationally in 2005 under the umbrella name Accelerated Cure Project for MS. Multiple Sclerosis is a demyelinating disorder of the central nervous system affecting over 400,000 people in the US and 2 million individuals worldwide. It often results in severe disability including the inability to walk, impaired vision or in some cases blindness, cognitive dysfunction, bladder and bowel problems, extreme fatigue and other serious symptoms.

The Accelerated Cure Project is focused on identifying the causes of MS. For its partnership with the Accelerated Cure Project, Return Path will aid the organization in a variety of ways, including: free use of relevant Return Path services to assist Accelerated Cure Project in its email communications with volunteers and donors; the ability for consumers who receive cash incentive payments for participating in surveys via Return Path's Survey Direct market research panel to donate those incentives to the Accelerated Cure Project; direct cash donations, including 50 percent of all royalties Return Path receives from Sign Me Up!, a book on email marketing that the company published earlier this year; and paid-time-off volunteer support from Return Path employees for Accelerated Cure Project events in New York or Denver.

"Seeing a good friend and long-time employee who was affected by MS was a very moving experience for us," said Matt Blumberg, Chairman and CEO of Return Path. "We decided to rally our employees and resources to support those researching a cure for MS, and the minute we met the team at Accelerated Cure, we knew we had found a great partner."

"Return Path's enthusiastic support of our mission to identify the causes of MS has been a tremendous boost to our efforts," said Art Mellor, President and CEO of Accelerated Cure Project. "Their services have connected us with hundreds of new supporters and helped individuals affected by MS find valuable resources provided on our web site."

About Return Path

Return Path is an e-mail performance management company dedicated to improving the reach, delivery performance and overall success of permission-based e-mail programs. More than 1,500 companies use Return Path's services to generate superior results from their e-mail programs, taking advantage of Return Path's pioneering innovation in deliverability, ECOA, list hygiene, double-opt-in list acquisition and best practices strategy. Solutions include list maintenance, deliverability, data acquisition, online sampling, marketing technology and e-mail strategy. Return Path's Postmaster Direct file is the largest, most targeted double opt-in database available for e-mail acquisition. The company's investors include Sutter Hill Ventures, Mobius Venture Capital, Flatiron Partners, and JP Morgan Partners. For more information, please visit www.returnpath.net, e-mail info@returnpath.net, or call toll-free 866-362-4577.

About Accelerated Cure Project

Accelerated Cure Project for Multiple Sclerosis, www.acceleratedcure.org, is a national nonprofit organization dedicated to curing Multiple Sclerosis (MS) by determining its causes. Accelerated Cure Project believes this effort can be accelerated by organizing the research process and encouraging collaboration between research organizations and clinicians. A "Cure Map" is currently being developed by the Accelerated Cure Project to establish what is known and what is not known about the causes of MS. From the Cure Map, Accelerated Cure Project will facilitate research most likely to reveal the causes of MS in the shortest time through a large-scale, multidisciplinary, MS Repository. For more information about the Accelerated Cure Project or to make a corporate or individual donation, call 781/487-0008, visit acceleratedcure.org, or send an email to info-web1207_no_spam_please_@i_mean_it.no_spam_whatsoever.acceleratedcure.org.

About Multiple Sclerosis

Multiple Sclerosis is a chronic demyelinating disorder of the central nervous system that often results in severe disability including the inability to walk, blindness, cognitive dysfunction, extreme fatigue and other serious symptoms. MS affects over 400,000 people in the US and 2 million individuals worldwide. The disorder occurs twice as often in women as in men. The cause is not known and there is no known cure.