我们从另一家ISP继承了DNS,现在我们的邮件服务器被每分钟大约1000封电子邮件轰炸,其中99.99%的电子邮件只是垃圾邮件.我们正试图优化过滤/拒绝垃圾邮件,没有太多运气.
您认为smtpd_recipient_restrictions的最佳设置是什么?
系统配置:Ubuntu Amavis Postfix MySQL Fail2Ban-Postfix
欢迎任何建议!
UDPATE,2012-08-08
在将posftix配置更改为folows并配置Potrgey服务时,垃圾邮件级别已经衰减了10次
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_non_fqdn_hostname,reject_invalid_hostname,reject_non_fqdn_sender,reject_unknown_sender_domain,reject_non_fqdn_recipient,reject_unknown_recipient_domain,check_policy_service inet:127.0.0.1:10023,reject_rbl_client zen.spamhaus.org,check_recipient_access MysqL:/etc/postfix/MysqL-virtual_recipient.cf,reject_unauth_pipelining,reject_unauth_destination
你的规则顺序很糟糕.如果您想保留所有这些而不添加任何其他内容,则订单必须为:
原文链接:https://www.f2er.com/ubuntu/348210.htmlsmtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination,check_recipient_access proxy:MysqL:/etc/postfix/MysqL-virtual_recipient.cf,reject_non_fqdn_recipient
如果仍然不够,那么请阅读http://www.postfix.org/POSTSCREEN_README.html中的postscreen.