EWS 通过SubscribeToPullNotifications订阅Exchange新邮件提醒

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Exchange.WebServices;
using Microsoft.Exchange.WebServices.Data;
using System.Net;
using System.Timers;
namespace Wolfy.Calendar_Email
{
    class Program
    {
        static ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
        static PullSubscription Subscription;
        static void Main(string[] args)
        {
            SubscribePullNotifications(WellKnownFolderName.Inbox);
            Timer mytimer = new Timer();
            mytimer.Elapsed += mytimer_Elapsed;
            mytimer.Interval = 10000;
            mytimer.Start();
            Console.Read();
        }

        static void mytimer_Elapsed(object sender, ElapsedEventArgs e)
        {
            Console.WriteLine("running");
            GetPullNotifications();
        }
        public static void SubscribePullNotifications(FolderId folderId)
        {
            service.Url = new Uri("https://mail.testsssss.com/ews/exchange.asmx");
            service.Credentials = new NetworkCredential("www", "12345", "domain");
            Subscription = service.SubscribeToPullNotifications(new FolderId[] { folderId }, 1440, null, EventType.NewMail, EventType.Created, EventType.Deleted);
        }
        public static void GetPullNotifications()
        {
            IEnumerable<ItemEvent> itemEvents = Subscription.GetEvents().ItemEvents;
            foreach (ItemEvent itemEvent in itemEvents)
            {
                switch (itemEvent.EventType)
                {
                    case EventType.Copied:
                        Console.WriteLine("Copied");
                        break;
                    case EventType.Created:
                        Console.WriteLine("Created");
                        break;
                    case EventType.Deleted:
                        Console.WriteLine("Deleted");
                        break;
                    case EventType.FreeBusyChanged:
                        Console.WriteLine("FreeBusyChanged");
                        break;
                    case EventType.Modified:
                        Console.WriteLine("Modified");
                        break;
                    case EventType.Moved:
                        Console.WriteLine("Moved");
                        break;
                    case EventType.NewMail:
                        Console.WriteLine("New mail");
                        Console.WriteLine(itemEvent.ItemId.UniqueId);
                        EmailMessage emailMessage = EmailMessage.Bind(service, itemEvent.ItemId.UniqueId);
                        Console.WriteLine(emailMessage.Subject);
                        Console.WriteLine(emailMessage.Body.Text);
                        Console.WriteLine(emailMessage.From);
                        Console.WriteLine(emailMessage.DateTimeReceived);
                        Console.WriteLine(string.Join(";", emailMessage.ToRecipients.Select(x => x.Address).ToArray()));
                        break;
                    case EventType.Status:
                        Console.WriteLine("Status");
                        break;
                    default:
                        break;
                }
            }
        }
    }
}