Multiple domains pointing to a single user

Looking for pointers here...

Moving (evaluating) Messaging Server 6, 2005Q4.

It is installed, working and looking great so far.

My present system is just straight sendmail. My organization handles multiple domains and I have sendmail set up so that a given user can be reached at each domain we host. So if for example, I have three domains, domain1, domain2, domain3 and a user named bob, bob gets email regardless of which domain it was sent to.

How can this configuration be replicated in Messaging Server 6?

Thanks for your time,

Mike.

[583 byte] By [mhassey] at [2007-11-26 8:23:16]