Similar to the question here Accessing Office 365 user mail data with admin authorisation only
Currently i am implementing an application that will access a set of mailboxes on Office365 using a service account.
There is an MSDN blog post announcing oauth support for Office 365 http://blogs.msdn.com/b/exchangedev/archive/2014/03/25/using-oauth2-to-access-calendar-contact-and-mail-api-in-exchange-online-in-office-365.aspx
Can our app use the technique in that link and get authorization from the administrator for the set of mailboxes using the service account for this "group" of mailboxes ?