EXCHANGE ALTERNATIVE

Many Linux servers work in heterogeneous environments, serving Windows clients that use MS Outlook for mail and calendar functions. Even if a new groupware system is introduced, the widespread use of Windows clients sometimes makes Outlook an inescapable alternative. Unfortunately, Outlook uses the native Windows Messaging Application Programming Interface (MAPI) for communication with other applications, and the Outlook client is designed to talk to a Windows Exchange server. This preference for Exchange makes the integration of Linux-based groupware systems difficult.