Guys,
Got a brand new install of Exchange 2013 in a co-existing 2010 SP3 environment, this is due to us moving to Office 365 and leaving an Exchange server onsite for management of mailbox attributes (Hybrid). As I understand from documentation out there only the CAS role is required on this server and the Mailbox role is not needed, however after the installation when I try to access Exchange 2013 ECP (https://localhost/ecp?ExchClientVer=15) I am presented with the logon page, once I enter my credentials I get a 'HTTP 404, website cannot be found error'. However if I install the Mailbox role it seems to work. Does anyone know why this isn't working with just the CAS role installed? My account is still on Exchange 2010 but be moved to Office 365 shortly.
Thanks.