Bingo!  Only took 5 years to get an answer! Now, if there were just a way to do this without any interaction, whenever a new mailbox is created from AD....

I think the point is to help automate the onboarding of new users.  I'm running into the exact issue myself.  I don't use any kind of scripts - other than syncing with on-prem Active Directory.  There should be a way to populate the To field, with th...