This needs to happen before we read the main configuration. */
init_lookup_list();
+#ifdef EXPERIMENTAL_INTERNATIONAL
+if (running_in_test_harness) smtputf8_advertise_hosts = NULL;
+#endif
+
/* Read the main runtime configuration data; this gives up if there
is a failure. It leaves the configuration file open so that the subsequent
configuration data for delivery can be read if needed. */