[cobalt-users] get sendmail to relay to internal server?

["Matt Kehler" <matt@xxxxxxxxxxxxx>]

I have a Qube2 setup as a firewall; working fine. I also have an internal
email server (groupwise) that we use on our LAN.  I have configured the
internal groupwise server to forward out all email through the Qube2 (using
it as a relay) successfully.

BUT, how can i configure the Qube2 to relay ALL incoming email to the
internal groupwise box?  I simply want it to relay ALL email to the
groupwise.  I don't want to create users on the qube reflecting users on the
groupwise, as then i would have to create forwarding rules for each user on
the qube2, and it wouldn't keep the originating sender anyway (and it also
screws up the formatting of the messages once they get to groupwise).

so do i
1) use ipfwadm to map port 25 on the qube to the internal groupwise server?
2) configure sendmail to relay all incoming email to the internal server?

or?
thanks
matt