Your OS version (e.g. Ubuntu 22.04) Mail-in-a-Box version (v72a) Symptoms (e.g., nsd won't start, SERVFAIL for MX, cert renewal blocked) What you did (e.g., reran setup.sh, reinstalled dns_update.py, tried regenerating zones) Logs (e.g., from journalctl, nsd-checkzone, dig, etc.)