Listing 3. sendmail.cf

# Ruleset 93 -- convert header names toll
# masqueraded form
S93
# handle generics database
R$+ < @ $=G . >       $: < $1@$2 > $1 < @ $2 . > @    mark
R$+ < @ *LOCAL* >     $: < $1@$j > $1 < @ *LOCAL* > @ mark
R< $+ > $+ < $* > @   $: < $(generics $1 $: $) > $2 < $3 >
R< > $+ < @ $+ >      $: < $(generics $1 $: $) > $1 < @ $2 >
R< $* @ $* > $* < $* >  $@ $>3 $1 @ $2   found qualified
R< $+ > $* < $* >    $: $>3 $1 @ *LOCAL*   found unqualified
R< > $*              $: $1               not found