extern uschar *errors_reply_to; /* Reply-to for error messages */
extern int errors_sender_rc; /* Return after message to sender*/
-#ifdef EXPERIMENTAL_EVENT
+#ifndef DISABLE_EVENT
extern uschar *event_action; /* expansion for delivery events */
extern uschar *event_data; /* event data */
extern int event_defer_errno; /* error number set when a remote delivery is deferred with a host error */
extern BOOL message_logs; /* TRUE to write message logs */
extern int message_size; /* Size of message */
extern uschar *message_size_limit; /* As it says */
-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
extern BOOL message_smtputf8; /* Internationalized mail handling */
extern int message_utf8_downconvert; /* convert from utf8 */
const extern pcre *regex_UTF8; /* For recognizing SMTPUTF8 settings */
extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
extern BOOL smtp_use_pipelining; /* Global for passed connections */
extern BOOL smtp_use_size; /* Global for passed connections */
-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
extern uschar *smtputf8_advertise_hosts; /* ingress control */
#endif