Plesk sends mail notification each night: Please read /usr/share/doc/tmpreaper/README.security.gz first

Symptoms

• Plesk sends mail notification each night with the content below: 

  Subject: Cron (root@plesk.example.com) test -x / usr / sbin / anacron || (cd / && run-parts --report /etc/cron.daily)
  Body: /etc/cron.daily/tmpreaper:
  Please read /usr/share/doc/tmpreaper/README.security.gz first;
  edit /etc/tmpreaper.conf to remove this message (look for SHOWWARNING).

• The extension Imunify360 or LMD Manager is installed in Plesk > Extensions > My Extensions.

Cause

The post-install configuration of the tmpreaper package was interrupted.

Resolution

1. Log into the server via SSH.
2. Run the command below to disable the notifications:

   # sed -i 's/SHOWWARNING=true/SHOWWARNING=false/' /etc/tmpreaper.conf