cc:Mail was a store-and-forward LAN-based email system originally developed on Microsoft's MS-DOS platform by Hubert Lipinski in the 1980s. At the height of its popularity, cc:Mail had about 14 million users, and won various awards for being the top email software package of the mid-1990s.
Read more about Cc:Mail: Architecture Overview, Message Store, Client Technology, MTA (Router), Gateways, Directory Services, Server Technology, Advantages, Criticisms, Client/Server Cc:Mail, Acquisition By Lotus, End of Life