使用C＃从客户端电子邮件的Web邮件版本中读取电子邮件

Question

我一直在尝试阅读来自客户电子邮件的网络邮件版本的电子邮件。在互联网上搜索了很多。我正在使用我在网上找到的代码

using System.Collections.Generic;
using System.Linq;
using ActiveUp.Net.Mail;
using System;

namespace GmailReadImapEmail
{
    public class MailRepository {
        private Imap4Client client;

        public MailRepository(string mailServer, int port, bool ssl, string login, string password) {
            if (ssl)
                Client.ConnectSsl(mailServer, port);
            else
                Client.Connect(mailServer, port);
            Client.Login(login, password);
        }

        public IEnumerable<Message> GetAllMails(string mailBox) {
            return GetMails(mailBox, "ALL").Cast < Message > ();
        }

        public IEnumerable<Message> GetUnreadMails(string mailBox) {
            return GetMails(mailBox, "UNSEEN").Cast < Message > ();
        }

        protected Imap4Client Client

        {
            get {
                return client ??(client = new Imap4Client());
            }
        }

        private MessageCollection GetMails(string mailBox, string searchPhrase) {
            Mailbox mails = Client.SelectMailbox(mailBox);
            MessageCollection messages = mails.SearchParse(searchPhrase);
            return messages;
        }

        public static void Main() {
            var mailRepository = new MailRepository(
                "outlook.office365.com",
                143,
                true,
                "username",
                "password"
            );

            var emailList = mailRepository.GetAllMails("inbox");

            foreach(Message email in emailList)
            {
                Console.WriteLine("<p>{0}: {1}</p><p>{2}</p>", email.From, email.Subject, email.BodyHtml.Text);
                if (email.Attachments.Count > 0) {
                    foreach(MimePart attachment in email.Attachments)
                    {
                        Console.WriteLine("<p>Attachment: {0} {1}</p>", attachment.ContentName, attachment.ContentType.MimeType);
                    }
                }
            }
        }
    }
}

我在Client.ConnectSsl（邮件服务器，端口）中调整异常 例外情况是：无法建立连接，因为目标计算机主动拒绝了