该帐户无权模拟请求的用户

我在尝试访问资源邮箱时收到此错误。请任何人帮助我解决这个问题。我是 EWS 新手。

我可以通过OWA（Outlook Web应用程序）访问资源邮箱。但我不是这个邮箱的所有者，因为它是共享邮箱。

my code:

ServicePointManager.ServerCertificateValidationCallback = CertificateValidationCallBack;
ExchangeService newExchangeService = new ExchangeService  (ExchangeVersion.Exchange2007_SP1);
newExchangeService.Credentials = new NetworkCredential(username, password, domain);
newExchangeService.AutodiscoverUrl(email-id, RedirectionUrlValidationCallback);

newExchangeService.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, email_which_i_want_to_access);

Folder visitorsFolder = Folder.Bind(newExchangeService, WellKnownFolderName.Inbox);
foreach (Folder childfolder in visitorsFolder.FindFolders(new FolderView(10)))
        {
            Console.WriteLine(childfolder.DisplayName);
        }

问题可能是您没有模拟邮箱的权限，但您可能具有委派访问权限。请参阅我对这个类似问题的回答，了解如何在拥有委托访问权限时访问邮箱：https://stackoverflow.com/a/9242792/64161