DNS_ERR_REFUSED   686 third_party/libevent/evdns.c 		DNS_ERR_NOTIMPL, DNS_ERR_REFUSED
DNS_ERR_REFUSED   704 third_party/libevent/evdns.c 		case DNS_ERR_REFUSED:
DNS_ERR_REFUSED  3023 third_party/libevent/evdns.c 	case DNS_ERR_REFUSED: return "refused";