Used for application system to send mail. The official e-mail system of Sun Yat-sen University includes personal e-mail and * * * e-mail opened for work needs, which are set for specific purposes and uses, such as short-term meetings and sending emails to application systems. Sun Yat-sen University, founded by Dr. Sun Yat-sen, is a high-level research-oriented comprehensive university directly under the Ministry of Education and under the national "985 Project" and "21/project". It is the first batch of "double first-class" colleges and universities to build classes.