I think the information at the end of the latest postfix ebuild script is a bit confusing: "NOTE: Be sure to update /etc/postfix/master.cf to the latest version or else postfix will no longer work." I didn't upgrade from an earlier version and was confused as to what I was supposed to do. Perhaps it should be more descriptive. Something like: "NOTE: If config file protection is enabled and you upgraded from en earlier version of postfix you must update /etc/postfix/master.cf to the latest version (/etc/postfix/._cfg????_master.cf). Otherwise postfix will not work correctly."
alright, thanks.