On 10.30.2017 I turned off Dovecot and DNS server on my CentOS 7.4 server running PLESK Onyx using Tools & Settings / Services Management in PLESK. When I checked the server today, 11.30.2017, they are running. The last server reboot was 10.27.2017.

Do you have any advice or pointers on where and when these services get restarted, and how I might stop this happening?

Thank you!

Regards
Mike