I need to write an application that will read messages in several shared mailboxes.
https://graph.microsoft.com/v1.0/users/myaccount@mydomain.com/messages
This request is sent with an authorization token. Great for me. The general mailbox belongs to me. However:
https://graph.microsoft.com/v1.0/users/sharedmailbox@mydomain.com/messages
Always return 403 Unauthorized. Is it possible? If not, what are the alternatives?
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