清华大学毕业设计论文PAGE\*MERGEFORMATii反垃圾邮件管理系统摘要随着Internet的普及，电子邮件作为一个主流的应用也日益得到了更多的使用。但是随之而来的垃圾邮件也越来越猖獗。经统计，从2001年开始，垃圾邮件增长的速度非常快，网民每周收到的垃圾邮件数量是非垃圾邮件数量的两倍，针对近几年来垃圾邮件的愈演愈烈，急需一种能有效防范垃圾邮件的方法。反垃圾邮件管理系统，开发该系统的主要目的是了解当前垃圾邮件过滤的发展现状，学习有关过滤的技术，能有效的阻止垃圾邮件的泛滥。通过学习和实践，发现垃圾邮件过滤发展中遇到的问题，并结合自己的研究工作提出一些看法和见解。关键词：反垃圾邮件管理系统；系统开发；学习实践MailfiltrationsystemAbstractAlongwiththeInternetpopularization，theemailtookamainstreamtheapplicationalsodaybydaytoobtainmoreuses.Butthefollowingjunkmailisalsogettingmoreandmorerampant.Afterthestatistics，startedfrom2001，thejunkmailgrewthespeedwasquick，thewebcamreceivedeveryweekjunkmailquantityrightandwrongjunkmailquantity'stwotimes，inviewofjunkmail'sescalation，wereurgentlyneededonekindtobeableinthelastfewyearstoguardagainstthejunkmaileffectivelythemethod.Themailfiltrationsystem，developsthissystem'smainpurposeistheunderstandingcurrentjunkmailfiltrationdevelopmentpresentsituation，thestudyrelatedfiltrationtechnology，caneffectiveimpedimentjunkmailbeinginflood.Throughthestudyandthepractice，discoveredinthejunkmailfiltrationdevelopmentmeetsthequestion，andunifiesownresearchworktoproposesomeviewsandtheopinion.Keywords：Mailfiltrationsystem;Systemdevelopment;Studypractice目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc390385852"摘要PAGEREF_Toc390385852\hiHYPERLINK\l"_Toc390385854"AbstractPAGEREF_Toc390385854\hiiHYPERLINK\l"_Toc390385855"1引言PAGEREF_Toc390385855\h1HYPERLINK\l"_Toc390385856"1.1选题背景PAGEREF_Toc390385856\h1HYPERLINK\l"_Toc390385857"1.2课题研究意义PAGEREF_Toc390385857\h1HYPERLINK\l"_Toc390385858"1.3可行性研究PAGEREF_Toc390385858\h2HYPERLINK\l"_Toc390385859"1.3.1经济可行性PAGEREF_Toc390385859\h2HYPERLINK\l"_Toc390385860"1.3.2技术可行性PAGEREF_Toc390385860\h2HYPERLINK\l"_Toc390385861"1.3.3运行可行性PAGEREF_Toc390385861\h2HYPERLINK\l"_Toc390385862"1.3.4时间可行性PAGEREF_Toc390385862\h2HYPERLINK\l"_Toc390385863"1.3.5法律可行性PAGEREF_Toc390385863\h2HYPERLINK\l"_Toc390385864"2相