[exim] Forward emails to a certain server

Hello all,

As I found, there's a Blackberry system connected to the Exchange server I'm
replacing, and that the Blackberry server will only work with Exchange, is it
possible to forward a copy of some people's emails to the Exchange server so
they can read on their Blackberries? Also don't delete it off the Exim server?
This is just a temporary solution.

Thanks very much for your help in advance

Cheers - Piers