extern uschar *tls_ocsp_file; /* OCSP stapling proof file */
# endif
extern uschar *tls_privatekey; /* Private key file */
+# ifdef EXPERIMENTAL_REQUIRETLS
+extern uschar tls_requiretls; /* REQUIRETLS active for this message */
+extern uschar *tls_advertise_requiretls; /* hosts for which REQUIRETLS adv */
+extern const pcre *regex_REQUIRETLS; /* for recognising the command */
+# endif
extern BOOL tls_remember_esmtp; /* For YAEB */
extern uschar *tls_require_ciphers; /* So some can be avoided */
extern uschar *tls_try_verify_hosts; /* Optional client verification */