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我已經設置了Office365設備郵箱，以便我可以在Outlook中打開它（使用Open-> Other User's Mailbox），但我無法使用C＃EWS API訪問郵箱。 代碼來訪問郵箱：無法使用EWS訪問Exchange設備郵箱
_service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, delegateBox);
_inbox = Folder.Bind(_service, WellKnownFolderName.Inbox);
結果是以下異常：
Exception in ProcessWebException
Microsoft.Exchange.WebServices.Data.ServiceResponseException: The SMTP address has no mailbox associated with it.
at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.ProcessWebException(WebException webException)
at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.GetEwsHttpWebResponse(HttpWebRequest request)
at Microsoft.Exchange.WebServices.Data.SimpleServiceRequestBase.InternalExecute()
at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.Execute()
at Microsoft.Exchange.WebServices.Data.ExchangeService.BindToFolder(FolderId folderId, PropertySet propertySet)
at Microsoft.Exchange.WebServices.Data.ExchangeService.BindToFolder[TFolder](FolderId folderId, PropertySet propertySet)
at Microsoft.Exchange.WebServices.Data.Folder.Bind(ExchangeService service, WellKnownFolderName name)