I have two users jane.doe@mydomain.com John.smith@mydomain.com, Both users were added to the test group with onmicrosftonline.com as jane.doe.temp@onmicrosoft.com and john.smith.temp@onmicrosoft.com. The .temp was removed when we went to our own domain now when I add jane.doe to a shared mailbox I see the jane.doe.temp for the send as but full access displays her name correctly. When I add John.Smith as a manger he is displayed as John.Smith.Temp.
Thank you.