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Research and Achievement of Anti-spam Webmail Model Based on Linux

Author: WangYue
Tutor: XuZhanWen
School: Shenyang University of Technology
Course: Applied Computer Technology
Keywords: Webmail qmail spam-filter source of Email
CLC: TP393.098
Type: Master's thesis
Year: 2005
Downloads: 187
Quote: 2
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Abstract


Our world has stepped into information times, and Email service is becoming one of the most important application by it’s prompt and convenient characteristic. Now Webmail is a necessary function on most website. But spam is a rebarbative byproduct of Email, the overrun of spams makes users bothered and affects the working order of Internet.Based on introducing the architecture of Email and analyzing spam status, the thesis present the research and achievement of anti-spam webmail model from three major aspects: improving the security of server; filtering spam and tracking source of spam.The safety of email system is a base of research. This thesis selects qmail as basal email server, improves it’s capability by adding patches, so the server can avoid open-relay effectively. Modifying part of qmail source for the sake of separating system-users and Email-users, which makes the management safer and more convenient.Filtering is a key technology in anti-spam. A scheme of two levels filtration was designed. The thesis combining ruler filter based on matching and blackhole list technic at server and users also can make filter in order to meet their own requirements.Most spams use spurious and valid information, baring them without analysis may lead misfiltration. Using actual spam as example, the thesis researches the head information of E-mail in order to track the source of E-mail, then give a feasible scheme to improve the technic of blackhole list.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network > E-mail ( E -mail )
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