I tried to enable the Email Policy Server. I undersatnd Cyberpanel uses its own Email Policy Server that listens on port 1089 called cpecs .
When enabled it advises that all is working OK but produces the following problems.
The service cannot start due to permissions and other errors.
Postfix reports warning: connect to /var/log/policyServerSocket: No such file or directory
Also
● cpecs.service - CyberPanel Email Policy Control Daemon
Loaded: loaded (/etc/systemd/system/cpecs.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2019-12-17 18:46:13 AEDT; 16h ago
Process: 276619 ExecStart=/usr/local/CyberCP/postfixSenderPolicy/policyCTRL.py start (code=exited, status=1/FAILURE)
Dec 17 18:46:12 vito.bbsnoc.com policyCTRL.py[276619]: subprocess.Popen(shlex.split(command))
Dec 17 18:46:12 vito.bbsnoc.com policyCTRL.py[276619]: File “/usr/lib64/python2.7/subprocess.py”, line 711, in init
Dec 17 18:46:12 vito.bbsnoc.com policyCTRL.py[276619]: errread, errwrite)
Dec 17 18:46:12 vito.bbsnoc.com policyCTRL.py[276619]: File “/usr/lib64/python2.7/subprocess.py”, line 1327, in _execute_child
Dec 17 18:46:12 vito.bbsnoc.com policyCTRL.py[276619]: raise child_exception
Dec 17 18:46:12 vito.bbsnoc.com policyCTRL.py[276619]: OSError: [Errno 13] Permission denied
Dec 17 18:46:13 vito.bbsnoc.com systemd[1]: cpecs.service: control process exited, code=exited status=1
Dec 17 18:46:13 vito.bbsnoc.com systemd[1]: Failed to start CyberPanel Email Policy Control Daemon.
Dec 17 18:46:13 vito.bbsnoc.com systemd[1]: Unit cpecs.service entered failed state.
Dec 17 18:46:13 vito.bbsnoc.com systemd[1]: cpecs.service failed.
When you disable the service, there are entries left in the cron which don’t get removed, so you get an email notification every hour
mkdir: cannot create directory ‘/home/cyberpanel’: File exists
Lots of work needs to be done