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我开发了一个小型控制台应用程序来测试 EWS StreamingSubscriptions / Notifications。过去我们使用推送通知，但理论上，当使用 StreamingNotifications 时，我应该能够避免创建侦听器 http 端点以及它的所有麻烦（防火墙等）。

所以，从我的本地机器；我正在这样做：

static void Main(string[] args)
    {
        if (String.IsNullOrEmpty(ConfigurationManager.AppSettings["PrimaryLabUserId"]))
        {
            throw new ArgumentNullException("Please provide a value for PrimaryLabUserId in app.config");
        }
        _primaryLabUserId = ConfigurationManager.AppSettings["PrimaryLabUserId"];

        string ServiceAccountName = ConfigurationManager.AppSettings["ExchangeServiceAccountName"];
        string ServiceAccountPassword = ConfigurationManager.AppSettings["ExchangeServiceAccountPassword"];


        _service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
        _service.Credentials = new WebCredentials(ServiceAccountName, ServiceAccountPassword);
        _service.AutodiscoverUrl(_primaryLabUserId, (x) => true);
        _ewsUrl = _service.Url.AbsoluteUri;

        var _connection =  new StreamingSubscriptionConnection(_service, 30);

        var sub = SubscribeForStreamingNotifications();

        _connection.AddSubscription(sub);

        _connection.OnDisconnect +=
            new StreamingSubscriptionConnection.SubscriptionErrorDelegate(OnDisconnect);

        // set up subscriptions here.
        _connection.OnNotificationEvent +=
                    new StreamingSubscriptionConnection.NotificationEventDelegate(OnNewMail);

        _connection.Open();
        Console.WriteLine("Listening streaming...");
        Console.ReadLine();


    }

public static StreamingSubscription SubscribeForStreamingNotifications()
    {

                   var folderIds = new List<FolderId>()
        {
            WellKnownFolderName.Inbox,
            WellKnownFolderName.Calendar
        };

                    var eventTypes = new List<EventType>();
        eventTypes.Add(EventType.NewMail);
        eventTypes.Add(EventType.Deleted);
        eventTypes.Add(EventType.Moved);
        eventTypes.Add(EventType.Created);
        eventTypes.Add(EventType.Modified);

        return _service.SubscribeToStreamingNotifications(folderIds, eventTypes.ToArray());
    }

private static void OnNewMail(object sender, NotificationEventArgs args)
    {
        var test = args;
        Console.WriteLine("Incoming");
    }

订阅初始化正常，但是当我向 LabUser 发送新邮件时，没有任何反应。通知事件永远不会触发。我对 pushnotifications 进行了同样的尝试，它正在工作（在另一台具有公共 http 端点的服务器上进行交换回调）。我想知道这是否与我的本地机器有关。

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1 回答 1

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我真是太愚蠢了。我忘记冒充了。由于我使用服务帐户调用 EWS，因此它当然会监听该帐户的邮箱，除非您指定：

 _service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, _primaryLabUserId);
于 2013-05-07T09:49:59.007 回答