Design and Implementation of E-mail Filtering System

Abstract

Nowadays, email is growing on communications between corporations, educational institutions, government agencies, and all kinds of organizations. Due to this, the importance of their email systems is enhancing within their information infrastructure. However, the significant growth of spam, viruses and other types of email-borne attacks in the past year is causing the system managers to face more challenges in managing and protecting this critical communications asset. In this paper, we designed and implemented an intelligent e-mail filter, EMF (Electronic Mail Filtering system), which is a general purpose Internet mail filtering tool. It acts as an email gateway to filter inbound and outbound messages by enforcing an organization’s email policies. It can be used to block junk mail, prohibit mail relaying, and diffuse mail bomb attacks. In the EMF system, we also provided a web-based administrative interface for the system administrators to do the system configuration and to set up their filtering policies. The EMF system can also give detail statistics and reports that will give a great help to the administrators for the analysis task.