--- contrib/sendmail/src/sm_resolve.c.orig   Fri Jun 28 00:43:24 2002
+++ contrib/sendmail/src/sm_resolve.c        Thu Jul 10 01:21:17 2003
@@ -233,6 +233,7 @@
			dns_free_data(r);
			return NULL;
		}
+		memset(*rr, 0, sizeof(**rr));
		(*rr)->rr_domain = sm_strdup(host);
		if ((*rr)->rr_domain == NULL)
		{