摘要:分析了當前企業電子郵件系統運作中面臨的垃圾郵件、開放性中繼和流動辦公帶來的非法使用等安全隱患。有針對性地介紹了若干關鍵技術——限制轉發、主機過濾和SMTP身份認證。最終在Linux平臺下制定了一套支持多重安全機制的跨域郵件系統的解決方案。
關鍵詞:垃圾郵件;開放性中繼;限制轉發;主機過濾;身份認證
Application of Multi-safety-mechanism in E-mail System
Zhang Yingchun
(Department of Computer, Shanghai Technical Institute of Electronics and Information, Shanghai, 201411, China)
Abstract:The hazards in current enterprise e-mail system including spam, open relay and unauthorized accessing was analysed. Some key techniques——limit forwarding, host filtering and identity authentication——were pertinently introduced. Finally, a multi-domain solution of an e-mail system supporting multi-security-mechanism was formulated on Linux.
Keywords:spam; open relay; limit forwarding; host filtering; identity authentication
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