Postfix only listens on localhost

Out of the box, CentOS 4 (and probably other versions of RHEL and Fedora) has Postfix configured to only listen on This is intentional, to ensure that the default installation is as safe as possible.

However, it seems that the Virtualmin installer should adjust the Postfix configuration, since one of the core purposes of a Virtulamin server is mail. The problem is easily solved by adding (or uncommenting) 'inet_interfaces = all' in /etc/postfix/, but I could see how a less experienced sysadmin would not see this as an obvious post-install task.

Closed (fixed)