Ever found your self in a messed up Hybrid Exchange environment, and some or all of your synced identities are missing something. maybe the onmicrosoft.com missing domain bug has infected your tenant? (No its not really...
Tag - UPN
Ever found your self in a messed up Hybrid Exchange environment, and some or all of your synced identities are missing something. maybe the onmicrosoft.com missing domain bug has infected your tenant? (No its not really...
Michael Mardahl