streamline symbolic links?

[Eric Lalonde]

It seems taht unless there is a symbolic link from /var/spool/mail/user to
/home/user/Mailbox, the user will not be notified, if they are logged into
the box, that they have new mail.
Since I want users to be notified when new mail arrives, is there a way to
streamline the process of creating symbolic links when new users are added
to the box? Make it so whenever a new user is added to the box, a symbolic
link from /var/spool/mail/user is also created?

any ideas are appreciated.

eric lalonde