[Exim] Exim

Hi folks - B4 I start down the Exim path I'd like to confirm that Exim will
indeed
do what I'm thinking it will do.

The vision:

My linux masquerading gateway sits there & automatically checks my account
at my ISP every so many minutes. It also checks my wife's account. It collects
both our email accounts all day long and distributes the mail into local
mailboxes.

Both the wife & I will point our pop3 clients at the linux box and get the
mail from
the linux box. (We both have our own seperate computers).

When either of us send mail, it goes to the linux box, which turns around
and shoots
the mail out to our separate IPS accounts.

I assume Exim can re-write whatever headers are necessary to do this.
I realize I'll need a pop3 agent riding on top of Exim.

So whaddya say folks - is it possible or am I looking at the wrong software
to do what I'm wanting? Anybody doing things this way?

All comments & opinions are much appreciated.
Thanks.