I have a test environment running with postfix and a mail server on the SAME machine.

my box name is univ.abc.com IP

the mail account on the mail server is mail.abc.com

I have a second, client, machine with outlook express.

I send an email to someone@mail.abc.com

I want postfix to forward/relay this mail to the other mail server (remember running on the same box). How can I do this?

This box is NOT connected to the internet, it is its own network.

Thnaks in advance