I have installed Exchange 2019 (Cumulative Update 7) on a Windows Server 2019 Datacenter.
All preliminary activities went right (installing .Net, installing Microsoft Unified Communication Managed API, preparing AD, ecc.).
Of course WIndows Server 2019 hosting Exchange is domain joined.
I have launched Exchange setup and procedure ended with no errors or warnings: all seemed fine.
When I try to access Exchange Administration console (ECP) I got: error 503 service unavailable.
What can I check?
If need other details, please ask.
Thank you in advance.