1 

     2 begin routers

     3 

     4     remote:

     5         driver = dnslookup

     6         domains = !+local_domains

     7         transport = remote_smtp

     8         more = no

     9 

    10     alias:

    11         driver = redirect

    12         require_files = ALIASES

    13         data = ${lookup{$local_part}lsearch{ALIASES}}

    14 

    15     mbox:

    16         driver = accept

    17         check_local_user = yes

    18         transport = local_mbox