postfix/manifests/init.pp

class postfix {
    package { ['postfix', 'nail']: }

    service { 'postfix':
        subscribe => Package['postfix'],
    }

    file { '/etc/postfix/main.cf':
        require => Package['postfix'],
        content => '',
        notify  => Service['postfix'],
    }
}
1	class postfix {
2	package { ['postfix', 'nail']: }
3
4	service { 'postfix':
5	subscribe => Package['postfix'],
6	}
7
8	file { '/etc/postfix/main.cf':
9	require => Package['postfix'],
10	content => '',
11	notify => Service['postfix'],
12	}
13	}