extern uschar *tls_verify_hosts; /* Mandatory client verification */
#endif
+#ifdef EXPERIMENTAL_DSN
+extern uschar *dsn_envid; /* DSN envid string */
+extern int dsn_ret; /* DSN ret type*/
+extern const pcre *regex_DSN; /* For recognizing DSN settings */
+extern BOOL smtp_use_dsn; /* Global for passed connections */
+extern uschar *dsn_advertise_hosts; /* host for which TLS is advertised */
+#endif
/* Input-reading functions for messages, so we can use special ones for
incoming TCP/IP. */
extern uschar *acl_smtp_auth; /* ACL run for AUTH */
extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
extern uschar *acl_smtp_data; /* ACL run after DATA received */
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
extern uschar *acl_smtp_data_prdr; /* ACL run after DATA received if in PRDR mode*/
const extern pcre *regex_PRDR; /* For recognizing PRDR settings */
#endif
extern uschar *pid_file_path; /* For writing daemon pids */
extern uschar *pipelining_advertise_hosts; /* As it says */
extern BOOL pipelining_enable; /* As it says */
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
extern BOOL prdr_enable; /* As it says */
extern BOOL prdr_requested; /* Connecting mail server wants PRDR */
#endif