通过Exchange服务发送邮件

Question

我试图通过Exchange服务器发送邮件而不打开Outlook，我使用了下面的代码。 我按照以下代码直接从交换服务发送邮件，但是收到自动发现网址的错误，有人可以帮助我。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Exchange.WebServices.Data;

namespace Serivcemessgae
{
    class Program
    {
        static void Main(string[] args)
        {
            ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013_SP1);

            service.Credentials = new WebCredentials("karan.kotabagi@***.com", "***");

            service.TraceEnabled = true;
            service.TraceFlags = TraceFlags.All;

            service.AutodiscoverUrl("karan.kotabagi@***.com", RedirectionUrlValidationCallback);

            EmailMessage email = new EmailMessage(service);

            email.ToRecipients.Add("karan.kotabagi@***.com");

            email.Subject = "HelloWorld";
            email.Body = new MessageBody("This is the first email I've sent by using the EWS Managed API");

            email.Send();
        }

        private static bool RedirectionUrlValidationCallback(string redirectionUrl)
        {
            // The default for the validation callback is to reject the URL.
            bool result = false;

            Uri redirectionUri = new Uri(redirectionUrl);

            // Validate the contents of the redirection URL. In this simple validation
            // callback, the redirection URL is considered valid if it is using HTTPS
            // to encrypt the authentication credentials. 
            if (redirectionUri.Scheme == "https")
            {
                result = true;
            }
            return result;


        }
    }
}