如何设置部分postfix邮箱不能发送外部邮件？

proasiazh

如何设置部分postfix邮箱不能发送外部邮件？
但是这些邮箱可以接收外部邮件，且能收发内部（公司域名下的邮箱）邮件。

robbin

http://www.postfix.org/RESTRICTION_CLASS_README.html


Restricting what users can send mail to off-site destinations
How can I configure Postfix in a way that some users can send mail to the internet and other users not. The users with no access should receive a generic bounce message. Please don't discuss whether such access restrictions are necessary, it was not my decision