pmta status Or inspect the log file:
License: valid (unlimited/1000000/hour) If the license is missing, expired, or mismatched (e.g., wrong MAC), you will see errors like: powermta license key
systemctl restart pmta To check if your license is active and recognized, use: pmta status Or inspect the log file: License:
tail -f /var/log/pmta/pmta.log A successful validation will show: or mismatched (e.g.