class mail::schleuder(
  $subdomain = hiera('schleuder_subdomain', 'encrypted')
) {

  # Schleuder subsystems
  include mail::packages::schleuder

  postfix::config { "schleuder_destination_recipient_limit": value => '1', nonstandard => true }

  postfix::transport { "${subdomain}.$domain":
    ensure      => present,
    destination => "schleuder",
  }
}