To perform this task,
your work email account must use a
BlackBerry Enterprise Server
that supports this feature and your administrator must turn on message
BlackBerry smartphone is designed to use the default
message classification when you send a message to a contact that you haven't
sent a message to or received a message from previously. If you have sent a
message to or received a message from the contact previously, your smartphone tries
to use the message classification that was used for the last message.
On the home screen
or in a folder, click the
Advanced System Settings >
Default Classification field.