讓 sendmail 擋除浮動 IP 傳送的信件

作者：Joe Horn（ joehorn AT leobbs DOT net ）

授權：[CC授權：姓名標示-非商業性-相同方式分享 2.5]

附註：本文件適用於 FreeBSD 平台，其它 UNIX-Like OS 可能有所不同。

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初始化設定檔

請使用以下指令：

# cd /etc/mail
# make

更改設定檔

請用編輯器開啟 /etc/mail/`hostname`.mc 這個檔案，例如：

# vi /etc/mail/`hostname`.mc

加入以下這一行：

FEATURE(`delay_checks')dnl

用編輯器編輯 /etc/mail/access ，除了原本的 IP 兩行，加進以下這段：

dynamic.apol.com.tw  REJECT We can not allow dynamic IP to relay!
dynamic.best.lsc.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.brdterra.com.br REJECT We can not allow dynamic IP to relay!
dynamic.cctv.lsc.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.eatel.net REJECT We can not allow dynamic IP to relay!
dynamic.giga.net.tw  REJECT We can not allow dynamic IP to relay!
dynamic.hinet.net REJECT We can not allow dynamic IP to relay!
dynamic.hiway.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.lsc.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.kingnet.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.mts.net  REJECT We can not allow dynamic IP to relay!
dynamic.seed.net.tw  REJECT We can not allow dynamic IP to relay!
dynamic.seeder.net REJECT We can not allow dynamic IP to relay!
dynamic.so-net.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.tfn.net.tw REJECT We can not allow dynamic IP to relay!
dynamic.ttn.net  REJECT We can not allow dynamic IP to relay!

安裝設定檔

請使用以下指令：

# cd /etc/mail
# make
# make cf install

重新啟動 sendmail

# cd /etc/mail
# make restart