+#ifdef EXPERIMENTAL_DBL
+ { "dbl_defer_errno", vtype_int, &dbl_defer_errno },
+ { "dbl_defer_errstr", vtype_stringptr, &dbl_defer_errstr },
+ { "dbl_delivery_confirmation", vtype_stringptr, &dbl_delivery_confirmation },
+ { "dbl_delivery_domain", vtype_stringptr, &dbl_delivery_domain },
+ { "dbl_delivery_fqdn", vtype_stringptr, &dbl_delivery_fqdn },
+ { "dbl_delivery_ip", vtype_stringptr, &dbl_delivery_ip },
+ { "dbl_delivery_local_part",vtype_stringptr,&dbl_delivery_local_part },
+ { "dbl_delivery_port", vtype_int, &dbl_delivery_port },
+#endif