email server?

["seg" <seg@vl.videotron.ca>]

 Hi,

  Let me explain my situation...I have a small LAN at home: 1 linux
firewall/gateway and 3 workstations (me, brother and dad). With my cable
modem access we are provided with 3 email addresses. We'd like to split the
adresses, one for me, one for my brother and the last one for my dad. The
problem is that they are all accessed using the same "email box"; meaning
you can't check them individually. I could set up outlook to simply seperate
the messages in different folders, but that doesn't really solve the
problem, as the messages will be spread around the 3 comps.

 I'd like to run a mail server on my firewall/gateway comp. That server
would dl the messages from my ISP, sort them into accounts (one for each
familly member)  and them each comp/user could access its proper account and
dl the messages (from the firewall) using outlook. Is that possible to set
up? What program, howtos or whatnot should I look into?

 Thx in advanced for the information.