uschar *tls_verify_hosts = NULL;
#endif
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
/* Per Recipient Data Response variables */
BOOL prdr_enable = FALSE;
BOOL prdr_requested = FALSE;
uschar *acl_smtp_auth = NULL;
uschar *acl_smtp_connect = NULL;
uschar *acl_smtp_data = NULL;
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
uschar *acl_smtp_data_prdr = NULL;
#endif
#ifndef DISABLE_DKIM
US"MIME",
US"DKIM",
US"DATA",
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
US"PRDR",
#endif
US"non-SMTP",
US"550", /* MIME */
US"550", /* DKIM */
US"550", /* DATA */
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
US"550", /* RCPT PRDR */
#endif
US"0", /* not SMTP; not relevant */