format
username new location Taichung
add this line to main.cf
relocated_maps = hash:/etc/postfix/relocated
to take effect
postmap /etc/postfix/relocated
postfix reload
then mail to username, system will sned a returned mail said
User has moved to new location Taichung
我不想把未知邮件用户的信退回，直接丢弃，或者转发到一个信箱
relocated 要手工建立么？
具体我要怎么做？
加入relocated_maps = hash:/etc/postfix/relocated
然后手工建立 relocated 文件
然后在relocated里边加入 转发邮件地址？
未知知郵件用户的信本來就會退回(Unkown user),
不需用到 relocated