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yaugenka's questions

Martin Hope
yaugenka
Asked: 2021-02-07 10:15:19 +0800 CST
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我需要拒绝所有主机名未知或与其地址不匹配的 smtp 连接。已尝试在 hosts.deny 中设置：

smtpd: UNKNOWN
smtpd: PARANOID

但 Postfix 日志显示他们仍在通过邮件守护进程。

postfix/smtpd[3426]: warning: hostname server1.reselect.org does not resolve to address 89.33.194.240
postfix/smtpd[3426]: connect from unknown[89.33.194.240]
postfix/smtpd[3426]: NOQUEUE: reject: CONNECT from unknown[89.33.194.240]: 450 4.7.25 Client host rejected: cannot find your hostname, [89.33.194.240]; proto=SMTP
...
postfix/smtpd[3997]: connect from unknown[193.56.29.102]
postfix/smtpd[3997]: NOQUEUE: reject: CONNECT from unknown[193.56.29.102]: 450 4.7.25 Client host rejected: cannot find your hostname, [193.56.29.102]; proto=SMTP

为什么它不起作用？

postfix