sender_from_whitelist_domain {
  type = "header";
  header = "from";
  filter = "email:domain";
  map = "file://$LOCAL_CONFDIR/local.d/maps.d/domain-whitelist.map";
  symbol = "SENDER_FROM_WHITELIST_DOMAIN";
  description = "Local sender domain whitelist";
  score = -6.0;
}