LDN - Luminis Developer Network

Tulane University is going to be using Microsoft's live@edu for student email accounts. We currently use an in-house Outlook server for email. I see where other schools have been able to modify the Luminis SSO for email to work with live@edu, but in our case, we will still have Faculty & Staff on our in-house server.
Any idea if we'll still be able to have SSO to email for Students as well as Faculty & Staff?