linux – 如何使spamassasin根据分数拒绝邮件？

我正在使用Postfix,Dovecot,Postgrey和spamassasin / spamd运行 Linux.

这是我的main.cf

smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination,reject_invalid_hostname,reject_unauth_pipelining,reject_non_fqdn_sender,reject_unknown_sender_domain,reject_non_fqdn_recipient,reject_unknown_recipient_domain,check_policy_service inet:127.0.0.1:10030

我有spamassasin将垃圾邮件标题添加到postfix没有捕获的其他电子邮件,但如何让它拒绝？

解决方法

您可以配置postfix以使用Spamassasin / Amavis作为代理过滤器.这样可以防止退回：在完成垃圾邮件检查之前,与SMTP远程端的连接将保持打开状态,并且后缀将以OK或REJECTED消息进行响应.这样,远程端负责跳出.

# master.cf

# mail inbound
smtp      inet  n       -       -       -       -       smtpd
    -o smtpd_proxy_filter=127.0.0.1:10024
    -o smtpd_client_connection_count_limit=10
    -o smtpd_proxy_options=speed_adjust

# spamassasin/amavis is listening to port 10024 and sending it's
# checked mail to port 10025
amavis    unix  -       -       n       -       2       smtp
   -o smtp_data_done_timeout=1200
   -o smtp_send_xforward_command=yes
   -o disable_dns_lookups=yes

# SMTP return (from amavis/spamassasin)
localhost:10025 inet  n -       n       -      -        smtpd
   -o content_filter=
   -o local_recipient_maps=
   -o relay_recipient_maps=
   -o smtpd_restriction_classes=
   -o smtpd_client_restrictions=
   -o smtpd_helo_restrictions=
   -o smtpd_sender_restrictions=
   -o smtpd_recipient_restrictions=permit_mynetworks,reject
   -o smtpd_override_options=no_address_mappings
   -o mynetworks=127.0.0.0/8
   -o receive_override_options=no_unknown_recipient_checks

# main.cf

# for rejecting spam
header_checks = pcre:/etc/postfix/header_checks

# header_checks

/X-Spam-Level: \*{9,}/ REJECT Looks like spam to me.

如果你使用Amavis来调用spamassasin,你可以让Amavis为你拒绝邮件 – 拒绝threashold可以配置$sa_kill_level_deflt.使用Amavis时,将SMTP返回条目中的no_header_body_checks添加到receive_override_options.