关键词:SMTP协议;邮件;C++;客户端
The design and implementation of a SMTP Client
Abstract
This thesis is completed in the foundation of the SMTP protocol client software MyEMail. It relates to the software design, implementation, testing and so on. Through the design, the SMTP protocol can be mastered and the deficiencies of current mail service can be understood. The thesis focuses on analyzing the SMTP protocol used by the mail service and adds the authentication function which will increase the mail service security according to the provisions of the protocol ESMTP.
MyEMail SMTP software is based on the principles of the protocol, the model and working processes of agreement. And it is a practical and SMTP protocol based client software. The software analyzes the working model and processes of protocol. It starts with the conventional mail process and uses the C++ language and MFC framework in VC++ 6.0 platform. The SMTP protocol is implemented in this software. It can send authentication information and e-mail to the mail server. The users can send authentication information and E-mail to the server through local software.
At present, although the protocol stipulates that the website information can be used in the text, it means that the mail content can contain malicious code, which has potential safe problems. So, the support is not provided in the design.