EWS：通过EWS访问Exchange收件箱

panjianm

　　EWS(Exchange  Web Service)是微软的下一代Exchange客户端通信协议。微软已经不提倡使用MAPI来访问Exchange。下面列举一个EWS的例子。该例子访问Exchange服务器，列出收件箱里的邮件的标题。
　　namespace ConsoleApplication1_0616
　　{

　　>　　{
　　static void Main(string[] args)
　　{
　　new Program().start();
　　}
　　public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
　　{
　　return true;
　　}
　　void start()
　　{
　　ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);

　　//>　　ExchangeServiceBinding service = new ExchangeServiceBinding();
　　service.RequestServerVersionValue = new RequestServerVersion();
　　service.RequestServerVersionValue.Version = ExchangeVersionType.Exchange2010;
　　service.Credentials = new NetworkCredential("xxxxx", "p@ssw0rd", "xxxx.local");
　　service.Url = @"https://192.168.0.33/EWS/Exchange.asmx";
　　FindItemType request = new FindItemType();
　　request.ItemShape = new ItemResponseShapeType();
　　request.ItemShape.BaseShape = DefaultShapeNamesType.AllProperties;
　　DistinguishedFolderIdType folder = new DistinguishedFolderIdType();
　　folder.Id = DistinguishedFolderIdNameType.inbox;
　　request.ParentFolderIds = new BaseFolderIdType[] { folder };
　　request.Traversal = ItemQueryTraversalType.Shallow;
　　FindItemResponseType response = service.FindItem(request);
　　FindItemResponseMessageType responseMessage =
　　response.ResponseMessages.Items[0] as FindItemResponseMessageType;
　　ItemType[] messages = (responseMessage.RootFolder.Item as ArrayOfRealItemsType).Items;
　　foreach (ItemType it in messages) {
　　Console.WriteLine(it.Subject);
　　}
　　}
　　}
　　}