If you were to log in, you'd be able to get more information on your fellow community member.
When I went to find this software I got this: Attention Post.Office Customers: As of September 1, 2001, Openwave will discontinue the sale of Post.Office* from our corporate Web site and through our sales force. We will continue to offer support services for Post.Office through Openwave’s Technical Assistance Center (TAC) for an additional twelve (12) months with support ending August 31, 2002. openwave apear to have taken software.com as given by P. Greenspun in the link at the head of the article.