Turn off the prompt that appears when you use a certificate or
PGP
key that is not recommended for use
-
On the home screen
or in a folder, click the
Options
icon.
-
Click
Security >
S/MIME or PGP.
-
In the General section, clear the
Warn About Problems With My Certificates checkbox or Warn About Problems With My PGP Keys checkbox.
-
Press the
key >
Save.