In the most of cases employees emails monitoring is permitted if his is done in a reasonable
manner and is backed up by an company email policy.

Display monitoring policy on user logon allows to display special warning
on user system logon to inform employees about company email monitoring policy.
You can either modify default policy text example (if it's suitable for you of course) or
enter own text.
Restore default allows to restore default text example if it's needed.
Preview allows to view how company email monitoring policy alert will
look for employees.
