Is it possible to combine delegate and impersonation access types?
Example: Using service account credentials to impersonate Bill, I need to access Jane's calendar using Bill's permission levels.
Because I have the service account credentials, I could simply impersonate Jane and edit her calendar that way - but I want to verify that Bill should have access to Jane's calendar. Also, I want to ensure that there is an audit trail showing the calendar was edited on Bill's behalf.
Does EWS provide any kind of fake "credentials" to use for this purpose?
This is related to my other question because I believe the only way to access Jane's calendar is via delegate access, even though it was shared with Bill: What is the recommended way to access shared *personal* calendars in EWS?