Nowadays , anti - spam measures commonly include black or white list technology , manual rules and keyword based content filtering 垃圾邮件的过滤技术也日渐成熟起来。基于内容的过滤技术是一个重要分支。
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Note : if you turn this feature off while the white list feature is on , you will only receive messages matching white list criteria 注意:如果您在白名单功能启用时，关闭该功能，您将只能收到符合白名单列表条件的邮件。
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This element is used to black / white list fonts from being listed or matched against . it holds acceptfont and rejectfont elements 这个元素用来设定黑名单或白名单，指示哪些字型该列出给应用程序，以及哪些字型可供比对。
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In this paper , we design a layered spam filtering system mainly against the ways used by spam senders . the system is highly staged and expansible , including improved distributed black and white list , reverse dns and na ? ve bayes filtering technologies 本论文主要针对垃圾邮件发送者采用的方法,设计出一个层次化的垃圾邮件过滤系统,该系统具有高度的层次化,包括改进型分布式黑白名单,域名反向解析,以及na
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Some measures of spam filtering , such as black or white list , manual rules and so on have been widely used . but it is difficult to maintain the rules because the features of spam are alterative , and the rules - based filtering is not satisfactory in practice . so these measures have certain limitations 近年来,有关垃圾邮件过滤技术的研究逐渐兴起,常见的过滤方法有黑/白名单技术、规则过滤等,但由于垃圾邮件的特征在不断地变化,规则难以维护、准确率不高等原因,这些方法都具有一定的局限性。
