Multiple email servers on one machine

[primal23]

Is there a way to set this up? What I need is

1. mydomain.com <- is already setup
2. mydomain2.com <- this would be a address that was an ISP email service

We are trying to basically move users on the ISP server to our already setup server, but would not be migrating any mysql.

[till]

You can have as many email domains as you like in one email server, jsut add them all in the email module.