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上一篇:.NET中加密和解密的实现方法(二) 下一篇:在C#中使用异步Socket编程实现TCP网络服务的C/S的通讯构架(一)----基础类库部分
c#发送需要smtp认证的邮件

来源: 作者: 添加日期:2005-9-4 19:19:56 点击次数:
 

-------------------------调用类 -----------------------------------
private void SendMaill(string username,string superpassword,string email) {
   string body="尊敬的用户:<br><br>您好!<br><br>&nbsp;&nbsp;你的登录用户名是:"+username+"这是你的超级密码:"+superpassword
    +"为了您的账号安全,我们建议您在收到邮件的72小时之内,到官方网站进行修改,并把该邮件删除。"
    +"<br><br>"
    +" 如有任何疑问,欢迎致电×××××发展有限责任公司客服热线:028-×××××××,我们将热情为您解答。"
    +" 感谢您的支持!<br><br>"
   +"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;××××××发展有限责任公司<br><br>"
   +"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"+System.DateTime.Now.Year+"年"+System.DateTime.Now.Month+"月"+System.DateTime.Now.Day+"日<br><br>"
    +"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;官网:http://www.×××××.com<br><br>"
    +"&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;××××:http://www.××××.com";
   
   lion_office.Data.Library.MailClass.ESmtpMail sm=new lion_office.Data.Library.MailClass.ESmtpMail();
   sm.Send("mail.××××.com",
     "×××@××××.com",
     "××客服",
     email,
     username,
    true,
    "×××官方网站密码找回邮件",
    body
        );

   Session.Remove("dd");
   Response.Redirect("FindSPassOK.aspx");
    }


-------------------------基类---------------------

using System;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Collections;

namespace lion_office.Data.Library.MailClass
{
/* 
Create By lion 
2002-11-20 01:44 
Copyright (C) 2001,2002 www.LionSky.Net. All rights reserved.
Web: http://www.Lionsky.net ;;
Email: lion-a@sohu.com
Support .Net Framework Beta 2 
*/ 
   public class ESmtpMail
   {
      private string enter="\r\n";
      /// <summary>
      /// 设定语言代码,默认设定为GB2312,如不需要可设置为""
      /// </summary>
      public string Charset="GB2312";
      /// <summary>
      /// 发件人地址
      /// </summary>
      public string From="";
      /// <summary>
      /// 发件人姓名
      /// </summary>
      public string FromName="";
      /// <summary>
      /// 回复邮件地址
      /// </summary>
      //public string ReplyTo="";
      /// <summary>
      /// 收件人姓名
      /// </summary>   
      public string RecipientName="";
      /// <summary>
      /// 收件人列表
      /// </summary>
      private Hashtable Recipient=new Hashtable();
      /// <summary>
      /// 邮件服务器域名
      /// </summary>   
      private string mailserver="";
      /// <summary>
      /// 邮件服务器端口号
      /// </summary>   
      private int mailserverport=25;
      /// <summary>
      /// SMTP认证时使用的用户名
      /// </summary>
      private string username="";
      /// <summary>
      /// SMTP认证时使用的密码
      /// </summary>
      private string password="";
      /// <summary>
      /// 是否需要SMTP验证
      /// </summary>      
      private bool ESmtp=false;
      /// <summary>
      /// 是否Html邮件
      /// </summary>      
      public bool Html=false;
      /// <summary>
      /// 邮件附件列表
      /// </summary>
      private System.Collections.ArrayList Attachments;
      /// <summary>
      /// 邮件发送优先级,可设置为"High","Normal","Low"或"1","3","5"
      /// </summary>
      private string priority="Normal";
      /// <summary>
      /// 邮件主题
      /// </summary>      
      public string Subject="";
      /// <summary>
      /// 邮件正文
      /// </summary>      
      public string Body="";
      /// <summary>
      /// 收件人数量
      /// </summary>
      private int RecipientNum=0;
      /// <summary>
      /// 最多收件人数量
      /// </summary>
      private int recipientmaxnum=1;
      /// <summary>
      /// 密件收件人数量
      /// </summary>
      //private int RecipientBCCNum=0;
      /// <summary>
      /// 错误消息反馈
      /// </summary>
      private string errmsg;
      /// <summary>
      /// TcpClient对象,用于连接服务器
      /// </summary>   
      private TcpClient tc;
      /// <summary>
      /// NetworkStream对象
      /// </summary>   
      private NetworkStream ns;
      /// <summary>
      /// SMTP错误代码哈希表
      /// </summary>
      private Hashtable ErrCodeHT = new Hashtable();
      /// <summary>
      /// SMTP正确代码哈希表
      /// </summary>
      private Hashtable RightCodeHT = new Hashtable();
      public ESmtpMail()
      {
         Attachments = new System.Collections.ArrayList();
      }      
      /// <summary>
      /// 邮件服务器域名和验证信息
      /// 形如:"user:paswww.server.com:25",也可省略次要信息。如"user:paswww.server.com"www.server.com"
      /// </summary>   
      public string MailDomain
      {
         set
         {
            string maidomain=value.Trim();
            int tempint;

            if(maidomain!="")
            {
               tempint=maidomain.IndexOf("@");
               if(tempint!=-1)
               {
                  string str=maidomain.Substring(0,tempint);
                  MailServerUserName=str.Substring(0,str.IndexOf(":"));
                  MailServerPassWord=str.Substring(str.IndexOf(":")+1,str.Length-str.IndexOf(":")-1);
                  maidomain=maidomain.Substring(tempint+1,maidomain.Length-tempint-1);
               }

               tempint=maidomain.IndexOf(":");
               if(tempint!=-1)
               {
                  mailserver=maidomain.Substring(0,tempint);
                  mailserverport=System.Convert.ToInt32(maidomain.Substring(tempint+1,maidomain.Length-tempint-1));
               }
               else
               {
                  mailserver=maidomain;

               }

               
            }

         }
      }

 

      /// <summary>
      /// 邮件服务器端口号
      /// </summary>   
      public int MailDomainPort
      {
         set
         {
            mailserverport=value;
         }
      }

 

      /// <summary>
      /// SMTP认证时使用的用户名
      /// </summary>
      public string MailServerUserName
      {
         set
         {
            if(value.Trim()!="")
            {
               username=value.Trim();
               ESmtp=true;
            }
            else
            {
               username="";
               ESmtp=false;
            }
         }
      }

      /// <summary>
      /// SMTP认证时使用的密码
      /// </summary>
      public string MailServerPassWord
      {
         set
         {
            password=value;
         }
      }   

      /// <summary>
      /// 邮件发送优先级,可设置为"High","Normal","Low"或"1","3","5"
      /// </summary>
      public string Priority
      {
         set
         {
            switch(value.ToLower())
            {
               case "high":
                  priority="High";
                  break;

               case "1":
                  priority="High";
                  break;

               case "normal":
                  priority="Normal";
                  break;

               case "3":
                  priority="Normal";
                  break;

               case "low":
                  priority="Low";
                  break;

               case "5":
                  priority="Low";
                  break;

               default:
                  priority="Normal";
                  break;
            }
         }
      }


      /// <summary>
      /// 错误消息反馈
      /// </summary>      
      public string ErrorMessage
      {
         get
         {
            return errmsg;
         }
      }

 

      /// <summary>
      /// 服务器交互记录
      /// </summary>
      private string logs="";

      /// <summary>
      /// 服务器交互记录,如发现本组件不能使用的SMTP服务器,请将出错时的Logs发给我(lion-a@sohu.com),我将尽快查明原因。
      /// </summary>
      public string Logs
      {
         get
         {
            return logs;
         }
      }
      

 

      /// <summary>
      /// SMTP回应代码哈希表
      /// </summary>
      private void SMTPCodeAdd()
      {
         ErrCodeHT.Add("500","邮箱地址错误");
         ErrCodeHT.Add("501","参数格式错误");
         ErrCodeHT.Add("502","命令不可实现");
         ErrCodeHT.Add("503","服务器需要SMTP验证");
         ErrCodeHT.Add("504","命令参数不可实现");
         ErrCodeHT.Add("421","服务未就绪,关闭传输信道");
         ErrCodeHT.Add("450","要求的邮件操作未完成,邮箱不可用(例如,邮箱忙)");
         ErrCodeHT.Add("550","要求的邮件操作未完成,邮箱不可用(例如,邮箱未找到,或不可访问)");
         ErrCodeHT.Add("451","放弃要求的操作;处理过程中出错");
         ErrCodeHT.Add("551","用户非本地,请尝试<forward-path>");
         ErrCodeHT.Add("452","系统存储不足,要求的操作未执行");
         ErrCodeHT.Add("552","过量的存储分配,要求的操作未执行");
         ErrCodeHT.Add("553","邮箱名不可用,要求的操作未执行(例如邮箱格式错误)");
         ErrCodeHT.Add("432","需要一个密码转换");
         ErrCodeHT.Add("534","认证机制过于简单");
         ErrCodeHT.Add("538","当前请求的认证机制需要加密");
         ErrCodeHT.Add("454","临时认证失败");
         ErrCodeHT.Add("530","需要认证");

         RightCodeHT.Add("220","服务就绪");
         RightCodeHT.Add("250","要求的邮件操作完成");
         RightCodeHT.Add("251","用户非本地,将转发向<forward-path>");
         RightCodeHT.Add("354","开始邮件输入,以<enter>.<enter>结束");
         RightCodeHT.Add("221","服务关闭传输信道");
         RightCodeHT.Add("334","服务器响应验证Base64字符串");
         RightCodeHT.Add("235","验证成功");
      }


      /// <summary>
      /// 将字符串编码为Base64字符串
      /// </summary>
      /// <param name="estr">要编码的字符串</param>
      private string Base64Encode(string str)
      {
         byte[] barray;
         barray=Encoding.Default.GetBytes(str);
         return Convert.ToBase64String(barray);
      }


      /// <summary>
      /// 将Base64字符串解码为普通字符串
      /// </summary>
      /// <param name="dstr">要解码的字符串</param>
      private string Base64Decode(string str)
      {
         byte[] barray;
         barray=Convert.FromBase64String(str);
         return Encoding.Default.GetString(barray);
      }

/// <summary>
      /// 得到上传附件的文件流
      /// </summary>
      /// <param name="FilePath">附件的绝对路径</param>
      private string GetStream(string FilePath)
      {
         //建立文件流对象
         System.IO.FileStream FileStr=new System.IO.FileStream(FilePath,System.IO.FileMode.Open);
         byte[] by=new byte[System.Convert.ToInt32(FileStr.Length)];
         FileStr.Read(by,0,by.Length);
         FileStr.Close();
         return(System.Convert.ToBase64String(by));
      }


      /// <summary>
      /// 添加邮件附件
      /// </summary>
      /// <param name="path">附件绝对路径</param>
      public void AddAttachment(string path)
      {
         Attachments.Add(path);
      }
      
      

      /// <summary>
      /// 添加一个收件人
      /// </summary>   
      /// <param name="str">收件人地址</param>
      public bool AddRecipient(string str)
      {
         str=str.Trim();
         if(str==null||str==""||str.IndexOf("@")==-1)
            return true;
         if(RecipientNum<recipientmaxnum)
         {
            Recipient.Add(RecipientNum,str);
            RecipientNum++;            
            return true;
         }
         else
         {
            errmsg+="收件人过多";
            return false;
         }
      }


      /// <summary>
      /// 最多收件人数量
      /// </summary>
      public int RecipientMaxNum
      {
         set
         {
            recipientmaxnum = value;
         }
      }


      /// <summary>
      /// 添加一组收件人(不超过recipientmaxnum个),参数为字符串数组
      /// </summary>
      /// <param name="str">保存有收件人地址的字符串数组(不超过recipientmaxnum个)</param>   
      public bool AddRecipient(string[] str)
      {
         for(int i=0;i<str.Length;i++)
         {
            if(!AddRecipient(str[i]))
            {
               return false;
            }
         }
         return true;
      }

      /// <summary>
      /// 发送SMTP命令
      /// </summary>   
      private bool SendCommand(string str)
      {
         byte[]  WriteBuffer;
         if(str==null||str.Trim()=="")
         {
            return true;
         }
         logs+=str;
         WriteBuffer = Encoding.Default.GetBytes(str);
         try
         {
            ns.Write(WriteBuffer,0,WriteBuffer.Length);
         }
         catch
         {
            errmsg="网络连接错误";
            return false;
         }
         return true;
      }

      /// <summary>
      /// 接收SMTP服务器回应
      /// </summary>
      private string RecvResponse()
      {
         int StreamSize;
         string Returnvalue = "";
         byte[]  ReadBuffer = new byte[1024] ;
         try
         {
            StreamSize=ns.Read(ReadBuffer,0,ReadBuffer.Length);
         }
         c

 
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