Dear,
Previously I have exchange 2013 in my environment, and suddenly the server(vm) is crashed i have no way to uninstall exchange 2013 correctly from environment.
now i install echange 2016 cu 17 and delete all exchange 2013 configuration from active directory.
the installation complete and, i can enable mailbox for new users.
but the users that previusly has mailbox didn't show on ecp, and when i use the following command on powershell:
get-user -identity | FL *Type*
I get the following error:
WARNING: The object ofoghdadeha.org/ODI/Technician/Identity has been corrupted or isn't compatible with Microsoft support requirements, and it's in an inconsistent
state. The following validation errors happened:
WARNING: ExternalEmailAddress is mandatory on MailUser.
WARNING: The mail contact and mail user must have a valid external e-mail address.
WARNING: The mail contact and mail user must have a valid external e-mail address.
Regards,
