读取Exchange2010 sp1 用户未读邮件数

参考：http://lloydsheng.com/2010/03/exchange-webservice-managed-api.html

1.安装 Exchange Web Services Managed API，当前版本1.1          

2.授权一个账户有模拟其他用户的权限，打开Exchange 2010 服务器在命令行中输入

  New-ManagementRoleAssignment -Name:impersonationAssignmentName -Role:ApplicationImpersonation -User:serviceAccount

　serviceAccount：就是我们要模拟其他人的账户

///////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Web;
using Microsoft.Exchange.WebServices.Data;

namespace EWS_test
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            EwsConfig config = new EwsConfig();
            config.ExchangeVersion=ExchangeVersion.Exchange2010_SP1;
            config.EWSServiceUrl="https://********/EWS/exchange.asmx";
            config.ExchangeAdministrator = "<UserName>";
            config.ExchangeAdministratorPassword = "<PWD>";
            config.DomainName = "<domainName>";
            config.OtherUserName = "<otherUserName>";
            //下面这句屏蔽服务器证书验证，防止页面报“根据验证过程，远程证书无效”的错误                                
            ServicePointManager.ServerCertificateValidationCallback =
                delegate(Object obj, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; };
            ExchangeService service = new ExchangeService(config.ExchangeVersion);
            service.Credentials = new NetworkCredential(config.ExchangeAdministrator, config.ExchangeAdministratorPassword, config.DomainName);       
            service.Url = new Uri(config.EWSServiceUrl);
            //前提打开Exchange 2010服务器在命令行中输入：             
            //New-ManagementRoleAssignment -Name:impersonationAssignmentName -Role:ApplicationImpersonation -User:<UserName>
            service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.PrincipalName, config.OtherUserName);
            int unRead=Folder.Bind(service, WellKnownFolderName.Inbox).UnreadCount;
            HttpContext.Current.Response.Write(config.OtherUserName+"未读邮件数："+unRead);
        }

        public struct EwsConfig
        {
            public ExchangeVersion ExchangeVersion;
            public string EWSServiceUrl;
            public string ExchangeAdministrator;
            public string ExchangeAdministratorPassword;
            public string DomainName;
            public string OtherUserName;
        }
     }
}