1.安裝postfwd
sudo apt-get update
sudo apt-get install postfwd
2.配置 postfwd規則
設定檔是/etc/postfix/postfwd.cf,若不存在,直接新增一個,並編寫內容如下:
# 限制每個帳號每日寄件總數為 500 封,並記錄日誌,sender 是內定參數
id=sender_rate
action=rate(sender/500/86400/REJECT 550 User $$sender reached daily sending limit)
3.修改postfix的main.cf檔案內容,找到 "smtpd_recipient_restrictions =",並將 "check_policy_service inet:127.0.0.1:10040"加在這個項目的最上方!
smtpd_recipient_restrictions =
#postfwd
check_policy_service inet:127.0.0.1:10040
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4.將postfwd設為開機啟動,並啟動!
sudo systemctl enable postfwd
sudo systemctl start postfwd
5.重新啟動postfix
sudo systemctl restart postfix