Until recently all emails sent to xyz.com was coming on my SMG. Thus in protocols>domains, I just had xyz.com. We are now doing some changes. Whereby xyz.com will now go through office365 first, then email for users not on office365 will be relayed to the SMG. For this MX change will have to be done.
I would like to know whether it is possible to put xyz.com as well as individual email address tom@xyz.com, bob@xyz.com (users not on office365) in protocols>domains. I want to do this so that once MX change is done I can just delete xyz.com and save time. Please help. This way will have limited impact on mail flow.