#define af_cert_verified 0x01000000 /* delivered with verified TLS cert */
#define af_pass_message 0x02000000 /* pass message in bounces */
#define af_bad_reply 0x04000000 /* filter could not generate autoreply */
-#ifdef EXPERIMENTAL_PRDR
+#ifndef DISABLE_PRDR
# define af_prdr_used 0x08000000 /* delivery used SMTP PRDR */
#endif
#define af_force_command 0x10000000 /* force_command in pipe transport */