:465
(TCP)
Low 风险
SMTPS
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TCP — Email
端口概览
端口号
465
服务名称
SMTPS
传输协议
TCP
类别
Email
安全风险
Low
端口范围
知名端口 (0-1023)
什么是端口 465?
SMTP over SSL/TLS (implicit TLS). Provides encrypted email submission from clients to mail servers. Reintroduced by RFC 8314 as the recommended port for message submission with implicit TLS.
TCP
Email
常用
安全注意事项
端口465（SMTPS）被归类为低风险。该服务使用加密或攻击面极小，相对安全可以暴露。
建议：应用标准安全实践。保持软件更新并监控访问。