diff --git a/scripts/95-woltguard.sh b/scripts/95-woltguard.sh
index 560c7bf..47642bc 100644
--- a/scripts/95-woltguard.sh
+++ b/scripts/95-woltguard.sh
@@ -130,7 +130,7 @@ cat >/etc/monit/conf.d/opendkim.conf <<'EOF'
 check process opendkim with pidfile /run/opendkim/opendkim.pid
   start program = "/bin/systemctl start opendkim"
   stop  program = "/bin/systemctl stop opendkim"
-  if does not exist file "/run/opendkim/opendkim.pid" then restart
+  if failed host 127.0.0.1 port 8891 type tcp for 2 cycles then restart
   if 5 restarts within 5 cycles then alert
 EOF