Express Mail System Implementation,

The Design of Fast Email server is a project funded by Electronic Development Funds of Ministry of Information Industry. With the explosively growing of the Internet at present, email is becoming a main carrier of the information exchange and the most common function. Meanwhile, in the domestic market there is a lack of the professional email system with high performance, reliance and security, which is suitable to middle or small enterprises and of our own knowledge rights. Thus, Fast Mail is coming into being.By analysing and comparing different internal architectures of network server, Fast Mail brings up process-pool-based SMTP Server, POP3 Server, WMG Server and SPCS technology.We speed up this system in three fields. Firstly, we use maildir; Secondly, we use fast queue mechanism to develop the performance of I/O; Finally, we use SPCS to build the whole MTA. The Specmail testing about the functions and the performance of Fast Mail approves that Fast Mail reaches our designing goals and has accomplished high performance.