On Wed, 2003-12-31 at 12:13, technical wrote: > what is being forwared to what? what are rules? > > mailer-daemon: postmaster > postmaster: root The left name is an alias for the name on the right. The names are resolved until there are no ambiguities. There's a limit to the number of "redirections" or "depth" of aliases... I think the limit is 10. Effectively the above shows mailer-daemon is an alias for "root". This is determined by any thing sent to mailer-daemon will be sent to "postmaster".... anything sent to postmaster (including stuff sent to mailer-daemon) will be sent to "root". So, with only these two aliases, all mail sent to "mailer-daemon", "postmaster" and "root" will be delivered to "root". Nice thing is you can add a new alias so mail directed to root is directed to a non-privileged user. Just add "root: <username>" to the aliases file.
