Main box (Inbox and Sent box)

Hi,

In my Employer site, I want the employer to send a message to an
existing employee whose details are already in the database (so, there
will be a user id for the employee).

The employee should receive this message when he LOGS  IN to the site
in HIS INBOX and also the employer should be able to view the sent
messages in his SENT BOX.

Is there a way to do this?



Thanks,
 


...