c#中如何實現發送郵件功能

Question

 剛開始學習c#,有個問題問下前輩們，c#中如何實現發送郵件功能呢？找了好多例子調試不成功，請幫幫忙，感謝！

Answer 1

可以了解下SMTP协议！
  还有这个命名空间using System.Threading;
  

Answer 2

using System.Net.Mail;(命名空间)<http://msdn.microsoft.com/zh-cn/library/system.net.mail.smtpclient%28v=VS.80%29.aspx>            MailMessage mainMsg = new MailMessage();
               mainMsg.Body ="要发送的消息";
               mainMsg.Subject = "主题";
               mainMsg.From = new MailAddress("发送者邮箱","发送者昵称", Encoding.UTF8);//("[email protected]", "397324300", Encoding.UTF8);
                   mainMsg.To.Add("添加收件人邮箱地址");
              //("[email protected]");
               SmtpClient client = new SmtpClient();
               client.Host ="smtp.qq.com";
               client.Credentials = new System.Net.NetworkCredential("发送者邮箱登录名", "发送者邮箱密码");//("[email protected]", "123456");
               object obj = mainMsg;
               client.SendAsync(mainMsg, obj);

Answer 3

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Mail;//(命名空间)<http://msdn.microsoft.com/zh-cn/library/system.net.mail.smtpclient%28v=VS.80%29.aspx>  
namespace ConsoleApplication1
{
  public  class EmailSend
    {
        public void Send()
        {
            try
            {
                MailMessage mainMsg = new MailMessage();
                mainMsg.Body = "bendan";
                mainMsg.Subject = "bendan";
                mainMsg.From = new MailAddress("[email protected]", "昵称", Encoding.UTF8);//("[email protected]", "397324300", Encoding.UTF8);
                mainMsg.To.Add("[email protected]");//收件人地址
                //("[email protected]");
                SmtpClient client = new SmtpClient();
                client.Host = "smtp.163.com";//如QQ 把 163 改成QQ 
                client.Credentials = new System.Net.NetworkCredential("帐号", "密码");//("[email protected]", "123456");
                object obj = mainMsg;
                client.SendAsync(mainMsg, obj);
            }
            catch(Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }
    }
}

Answer 4

http://msdn.microsoft.com/zh-cn/library/system.net.mail.smtpclient%28v=VS.80%29.aspx
要不你再参考下这个地址
关于这个类的使用

Answer 5

JMail.Net/系统自带的System.Net.Mail都可以，要是用JMail.Net的话自己修改一下源代码还可以实现快速多封连发