extern BOOL disable_logging; /* Disables log writing when TRUE */
#ifndef DISABLE_DKIM
+extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
+extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
+extern int dkim_key_length; /* Expansion variable, length of signing key in bits */
extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */
extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */
extern uschar *dkim_verify_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */
-extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
-extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
#endif
#ifdef EXPERIMENTAL_DMARC
extern BOOL dmarc_has_been_checked; /* Global variable to check if test has been called yet */
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 uschar *process_log_path; /* Alternate path */
extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
-#ifdef EXPERIMENTAL_PROXY
-extern uschar *proxy_host_address; /* IP of host being proxied */
-extern int proxy_host_port; /* Port of host being proxied */
-extern uschar *proxy_required_hosts; /* Hostlist which (require) use proxy protocol */
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+extern uschar *hosts_proxy; /* Hostlist which (require) use proxy protocol */
+extern uschar *proxy_external_address; /* IP of remote interface of proxy */
+extern int proxy_external_port; /* Port on remote interface of proxy */
+extern uschar *proxy_local_address; /* IP of local interface of proxy */
+extern int proxy_local_port; /* Port on local interface of proxy */
extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy */
extern BOOL proxy_session_failed; /* TRUE if required proxy negotiation failed */
-extern uschar *proxy_target_address; /* IP of proxy server inbound */
-extern int proxy_target_port; /* Port of proxy server inbound */
#endif
extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
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