uschar *return_path = NULL;
BOOL return_path_remove = TRUE;
int rewrite_existflags = 0;
-uschar *rfc1413_hosts = US"*";
-int rfc1413_query_timeout = 5;
+uschar *rfc1413_hosts = US"@[]";
+int rfc1413_query_timeout = 0;
/* BOOL rfc821_domains = FALSE; <<< on the way out */
uid_t root_gid = ROOT_GID;
uid_t root_uid = ROOT_UID;