inet_interfaces defaults to all

manifests/init.pp

@@ -49,7 +49,7 @@
 #   }
 #
 class postfix (
-  $inet_interfaces     = 'localhost',
+  $inet_interfaces     = 'all',
   $mail_user           = 'vmail',     # postfix_mail_user
   $mailman             = false,
   $master_smtp         = undef,       # postfix_master_smtp

spec/classes/postfix_spec.rb

@@ -20,7 +20,7 @@ describe 'postfix' do
 
       it { should contain_postfix__config('myorigin').with_value('fqdn.example.com') }
       it { should contain_postfix__config('alias_maps').with_value('hash:/etc/aliases') }
-      it { should contain_postfix__config('inet_interfaces').with_value('localhost') }
+      it { should contain_postfix__config('inet_interfaces').with_value('all') }
 
       it { should contain_mailalias('root').with_recipient('nobody') }
 
@@ -51,7 +51,7 @@ describe 'postfix' do
 
       it { should contain_postfix__config('myorigin').with_value('fqdn.example.com') }
       it { should contain_postfix__config('alias_maps').with_value('hash:/etc/aliases') }
-      it { should contain_postfix__config('inet_interfaces').with_value('localhost') }
+      it { should contain_postfix__config('inet_interfaces').with_value('all') }
       it { should contain_postfix__config('sendmail_path') }
       it { should contain_postfix__config('newaliases_path') }
       it { should contain_postfix__config('mailq_path') }