Exch2K Design & Configuration

Hello,

I have the following scenario:-

Server A with domain called UVW.COM
Server B with domain called XYZ.COM

Both servers are of separate entities with its own group of users. If I install Exch2K on the servers respectively, can I use a common domain name eg. @ABC.COM for the email domains. If this is possible, how do I go about doing it? and if it’s not possible, is there another way to do so?

Appreciate any ideas from anyone.

Thank you,
Joyce