catchall:
  debug_print = "R: catchall for $local_part@$domain"
  driver = redirect
  allow_defer
  allow_fail
#  data = ${lookup{*@$domain}lsearch{/etc/aliases}}
#  data = postmaster@$domain
  data = \*@$domain
  qualify_preserve_domain
  retry_use_local_part
  check_ancestor