I want to do a staged migration on my office 365 setup. What i'm trying to do is add a group of users cloud while keeping other users on Lotus Domino. If an email comes and they're not in the initial group it will send it on to the Lotus Group where other users have yet to be migrated.
Whenever we change our MX record all email will be flowing to office 365, and not Lotus so we want to do it in stages (groups). I know it can be done with exchange because it has send connectors. We aren't sure if you can do this in office 365.