postfix垃圾邮件过滤机制，有谁全部使用了-优快云博客

本文介绍了一种基于POSTFIX的垃圾邮件过滤配置方案，详细展示了如何通过设置smtpd_restriction_classes、smtpd_helo_required等参数来实现严格的邮件接收策略，确保服务器免受垃圾邮件的侵扰。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

POSTFIX有传说中最强的垃圾邮件过滤机制，有谁把这些机制全部利用起来了。

smtpd_restriction_classes ＝
             spamlover
             spamhater
spamhater ＝
             reject_invalid_hostname
             reject_non_fqdn_hostname
             reject_unknown_sender_domain
             reject_rbl_client   nospam.example.com
spamlover ＝ permit
smtd_helo_required ＝ yes
smtpd_client_restrictions ＝
          check_client_access hash:/ect/postfix/client_access
smtpd_helo_restrictions =
       reject_invalid_hostname
       check_helo_access hash:/etc/postfix/helo_access
smtpd_sender_restrictions =
       reject_non_fqdn_sender
       reject_unknown_sender_domain
       check_sender_access hash:/etc/postfix/sender_access
smtpd_recipient_restrictions =
          permit_mynetworks
          reject_unauth_destination
          reject_non_fqdn_recipient
          reject_unknown_recipient_domain
smtpd_data_restrictions =
       reject_unauth_pipelining
header_checks = /etc/postfix/header_checks
body_checks = /etc/postfix/body_checks

本文转自 jxwpx 51CTO博客，原文链接：http://blog.51cto.com/jxwpx/238679，如需转载请自行联系原作者