#define vopt_callout_no_cache 0x0040 /* disable callout cache */
#define vopt_callout_recipsender 0x0080 /* use real sender to verify recip */
#define vopt_callout_recippmaster 0x0100 /* use postmaster to verify recip */
-#define vopt_success_on_redirect 0x0200
+#define vopt_callout_hold 0x0200 /* lazy close connection */
+#define vopt_success_on_redirect 0x0400
/* Values for fields in callout cache records */