NetMail-Light
NetMail is a mail system for local networks and mobile access. You can use the built-in webmail interface, or the NetMail client software. Users can read/write e-mails from any LAN workstation. Also optimized for GSM, GPRS, UMTS, TCP/IP connections. Includes heuristic virus detection and rule-based spam filter. (Note: NetMail has its own client software, Outlook etc. cannot be used.)