Dan (mush's author) went on to start Z-Mail, a commercial GUI mail client, using mush as its basis, which likely explains the restrictive license. SGI eventuall

Dan (mush's author) went on to start Z-Mail, a commercial GUI mail client, using mush as its basis, which likely explains the restrictive license. SGI eventually bundled Z-Mail with IRIX, which is why I scored an Indigo workstation when Dan hired me away from SCO in the early 1990s to help support it. I'm not sure when Z-Mail Lite, the TUI version, was introduced, but I eventually made it my speciality because I fell in love with its speed. To this day, I detest web-based email clients; at a later gig, Windows ports of Pine, Vim and par, an awesome paragraph formatter, made life with Windows bearable. Dan eventually sold out to Judy Estrin at NCD, maker of X terminals and, later, X servers for Windows. Then NCD sold out to NetManage, then I left and eventually made my way to Netscape (post-IPO, sadly) to support their email server product.