The Design And Implement Of An E-m,ail Gate System Based On Sendmail

Our world is following the information gradually for ages, the E-mail service is important way and meanness of the information communication, with it fast, convenience etc. The characteristics became the Internet up one of the most important applications. But spam, the virus mail the problem also perplexes us every moment. How carry out the key that the system terrace and the safety of the structures becomes the mail system service quantity. Guard against for the spam, definitely processing methods of the product of most factories are all percolations that are absorbed in to carry on some constitutions and rule in its particular mail system, aiming at them particular product, but did not carry on the consideration from the structure of the mail server. One aim at the above-mentioned problem, the design carries out a mail server system, can not change the existing calculator network environment and the foundation of the parameters up, and resolve the supervision processing problem to the existing E-mail server come-and-go mail information.This topic design and research period, the main realization completed also as follows what time contents:1. Accord to currently the characteristics of the domestic and international mail server system, consider the request of stability, safety etc of the mail server, design also carried out that net pass the mail delivers the server system.2. Take Linux as the operate system terrace, Sendmail as different from work principle carry on analysis and study, put forward to aim at customer of the system structure that the mail delivers the service terrace combination to install the model and design parameters demandingly.3. Aim at currently for the characteristics that the network information filter put forward the solution of the transparent net pass, match with the design to the system the structure of the improvement, basically carried out the E-mail to filter the service system.4. Combine the characteristics of the E-mail, aim at the text originally way of spam put forward the percolation model that the method of the improvement and solid hours handle.