Really happy to see Microsoft moving towards the right direction. This knowledge was supposedly internal and admins had to work hard to connect the DOTs. This would definately help troubleshooting and keep things clear as coming directly from Microsoft.
Few clarifications:
- ExchangeGuid generated by EXO, makes its way back to OnPrem, how? It would be good to clarify this write-back. Sometimes it doesn't though.
- Set-ADUser hearing it for the first time we can use it for EXO Directory services, surely there is no information about endpoints. It would be useful atleast the Get-ADUser for extracting automapping list (msExchDelegateListLink/msExchDelegateListBL ).
- The new self-serve diagnostic option is good, looking forward for more such tools empowering the tenant admins