Study And Application Of Intranet Mail Filtering Gateway For Public Security Bureau

Email the entire network as well as all other network systems for the exchange ofinformation between people, systems, and data sender and recipient are all humanbeings, so great to meet abound between peoplecommunication needs. E-mail is animportant application of the Internet, and with the further development of thetechnology of the Internet, e-mail has become one of the Internet users are mostcommonly used communication Contact with a certain status and role, the emailantivirus imminent, mail filtering gateway the hardware proprietary system developedjust to meet the demand. The subject POP3protocol-based mail filtering gateway, tomeet the needs of Wenzhou City Public Security Bureau, the mail system, the practicalvalue.The working process of the e-mail follow a client-server mode. Each e-mailshould be sent to the sender and the recipient, a sender client, a recipient server, e-mailservers with many users. The sender through the mail client, the edited e-mail sent tothe post office server (SMTP server). The address of the post office server to identifythe recipient, to the management of the address of the mail server (POP3server) to senda message. Mail server know the message is stored in the recipient’s e-mail and informthe recipient of the arrival of a new message. Recipient via e-mail client program toconnect to the server, you will see the server notice, to open up their own e-mail tocheck your email. This paper analyzes the mail filtering technology development, thedemand from the customer’s point of view, the analysis of the feasibility of the POP3protocol-based e-mail filtering gateway. Design sub-module that supports the POP3protocol and its corresponding function, and its encoded testing. Difficulty and keytechnologies are described in detail in the encoding process. Mail filtering gatewayfurther assumptions, clustering and load balancing techniques to realize.