·基于规则的评分技术 (Rule-based Scoring System) ·贝叶斯过滤技术(Bayesian Filter) ·指纹识别技术(Fingerprinting) ·关键字过滤技术(Word Filter) ·黑白名单技术(Black List & White List) ·DNS MX反向查技术(DNS MX record lookup) ·行为过滤技术(Behavioral Analysis) ·速率控制技术 (Rate Control) ·邮件意图分析(Intension Analysis) ·微软Exchange加速器(MX Exchange Accelerator) |