Nowadays, with the increasing popularity of the network, Email system is used widely more and more. Since the e-mail comes to our life, people do not just depend on the traditional letters, either. It’s reliable, fast, convenient and flexible, which makes people accept and use it widely. The graduation designment is a way to let us know how to develop an email system based on WEB. This system uses an agent mail which gets through SMTP and POP3 protocol to achieve the email system. It is similar to OUTLOOK which is based on WEB Service. The mainly used soft wares are Eclipse, Mysql. Java is also used too, under which we can use JSP programming to achieve for various functions. This system supports users’ authentication. Before accessing the system, users must have a proper registration. In this system, users can not only check their mail but also send them to any mail boxes. When sending the e-mail, they can also send the attachment. During this period, not only can I deepen the understanding of professional knowledge, but also I practice my self-agility. At the same time, I realized that, with the rapid development of the informational technology, more and more people will be concerned with the efficient, fast and convenient mail system. After that, perhaps most of them will have a try. In a word, e-mail will make our life more efficient and convenient.
Key words: B/S; mail system; SMTP; POP3; JSP