> By default, this feature is turned off. This closes a nasty open relay loophole where a backup MX host can be tricked into forwarding junk mail to a primary M

> By default, this feature is turned off. This closes a nasty open relay loophole where a backup MX host can be tricked into forwarding junk mail to a primary MX host which then spams it out to the world. http://www.postfix.org/postconf.5.html#allow_untrusted_routing http://www.postfix.org/postconf.5.html#allow_untrusted_routi...