+ /*
+ * Run the external hook to refile the old message as the
+ * temporary message number that is off of the end of the
+ * messages in the folder.
+ */
+
+ (void)snprintf(f1, sizeof (f1), "%s/%d", mp->foldpath, old);
+ (void)snprintf(newbuf, sizeof (newbuf), "%s/%d", mp->foldpath, mp->hghmsg + 1);
+ ext_hook("ref-hook", f1, newbuf);
+