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  • Lion的发送Email的类

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

    namespace Lion.Web.Mail
    {
     /* 
     Create By lion 
     2004-04-23 19:00  

     Support C# Framework Beta 2 
     */ 
     #region AspNetPager Server Control

     /// <summary>
     /// 邮件可以通过 Microsoft Windows 2000 中内置的 SMTP 邮件服务或任意 SMTP 服务器来传送
     /// </summary>
     public class SmtpMail
     {

      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>
      private string _charset="GB2312";

      /// <summary>
      /// 发件人地址
      /// </summary>
      private string _from="";

      /// <summary>
      /// 发件人姓名
      /// </summary>
      private string _fromName="";

      /// <summary>
      /// 回复邮件地址
      /// </summary>
      ///public string ReplyTo="";

      /// <summary>
      /// 收件人姓名
      /// </summary>
      private 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> 
      private bool _html=false;


      /// <summary>
      /// 邮件附件列表
      /// </summary>
      private IList 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> 
      private string _subject;

      /// <summary>
      /// 邮件正文
      /// </summary> 
      private string _body;
           
      /// <summary>
      /// 密送收件人列表
      /// </summary>
      ///private Hashtable RecipientBCC=new Hashtable();

      /// <summary>
      /// 收件人数量
      /// </summary>
      private int RecipientNum=0;

      /// <summary>
      /// 最多收件人数量
      /// </summary>
      private int recipientmaxnum=5;

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

      /// <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();
     

      /// <summary>
      /// 初始化 <see cref="Lion.Web.Mail.SmtpMail"/> 类的新实例
      /// </summary>
      public SmtpMail()
      {
       Attachments = new System.Collections.ArrayList();
      }

      #region Properties


      /// <summary>
      /// 邮件主题
      /// </summary>
      public string Subject
      {
       get
       {
        return this._subject;
       }
       set
       {
        this._subject = value;
       }
      }

      /// <summary>
      /// 邮件正文
      /// </summary>
      public string Body
      {
       get
       {
        return this._body;
       }
       set
       {
        this._body = value;
       }
      }

     
      /// <summary>
      /// 发件人地址
      /// </summary>
      public string From
      {
       get
       {
        return _from;
       }
       set
       {
        this._from = value;
       }
      }

      /// <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
      {
       get
       {
        return this._charset;
       }
       set
       {
        this._charset = value;
       }
      }

      /// <summary>
      /// 发件人姓名
      /// </summary>
      public string FromName
      {
       get
       {
        return this._fromName;
       }
       set
       {
        this._fromName = value;
       }
      }

      /// <summary>
      /// 收件人姓名
      /// </summary>
      public string RecipientName
      {
       get
       {
        return this._recipientName;
       }
       set
       {
        this._recipientName = value;
       }
      }
     
      /// <summary>
      /// 邮件服务器域名和验证信息
      /// 形如:"user:pass@www.server.com:25",也可省略次要信息。如"user:pass@www.server.com"或"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>
      ///  是否Html邮件
      /// </summary>
      public bool Html
      {
       get
       {
        return this._html;
       }
       set
       {
        this._html = value;
       }
      }


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

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

     
      #endregion

      #region Methods


      /// <summary>
      /// 添加邮件附件
      /// </summary>
      /// <param name="FilePath">附件绝对路径</param>
      public void AddAttachment(params string[] FilePath)
      {
       if(FilePath==null)
       {
        throw(new ArgumentNullException("FilePath"));
       }
       for(int i=0;i<FilePath.Length;i++)
       {
        Attachments.Add(FilePath[i]);
       }
      }
     
      /// <summary>
      /// 添加一组收件人(不超过recipientmaxnum个),参数为字符串数组
      /// </summary>
      /// <param name="Recipients">保存有收件人地址的字符串数组(不超过recipientmaxnum个)</param>
      public bool AddRecipient(params string[] Recipients)
      {
       if(Recipient==null)
       {
        Dispose();
        throw(new ArgumentNullException("Recipients"));
       }
       for(int i=0;i<Recipients.Length;i++)
       {
        string recipient = Recipients[i].Trim();
        if(recipient==String.Empty)
        {
         Dispose();
         throw(new ArgumentNullException("Recipients["+ i +"]"));
        }
        if(recipient.IndexOf("@")==-1)
        {
         Dispose();
         throw(new ArgumentException("Recipients.IndexOf(\"@\")==-1","Recipients"));
        }
        if(!AddRecipient(recipient))
        {
         return false;
        }
       }
       return true;
      }

      /// <summary>
      /// 发送邮件方法,所有参数均通过属性设置。
      /// </summary>
      public bool Send()
      {
       if(mailserver.Trim()=="")
       {
        throw(new ArgumentNullException("Recipient","必须指定SMTP服务器"));
       }

       return SendEmail();
      
      }


      /// <summary>
      /// 发送邮件方法
      /// </summary>
      /// <param name="smtpserver">smtp服务器信息,如"username:password@www.smtpserver.com:25",也可去掉部分次要信

    息,如"www.smtpserver.com"</param>
      public bool Send(string smtpserver)
      {  
       MailDomain=smtpserver;
       return Send();
      }


      /// <summary>
      /// 发送邮件方法
      /// </summary>
      /// <param name="smtpserver">smtp服务器信息,如"username:password@www.smtpserver.com:25",也可去掉部分次要信

    息,如"www.smtpserver.com"</param>
      /// <param name="from">发件人mail地址</param>
      /// <param name="fromname">发件人姓名</param>
      /// <param name="to">收件人地址</param>
      /// <param name="toname">收件人姓名</param>
      /// <param name="html">是否HTML邮件</param>
      /// <param name="subject">邮件主题</param>
      /// <param name="body">邮件正文</param>
      public bool Send(string smtpserver,string from,string fromname,string to,string toname,bool html,string

    subject,string body)
      {
       MailDomain=smtpserver;
       From=from;
       FromName=fromname;
       AddRecipient(to);
       RecipientName=toname;
       Html=html;
       Subject=subject;
       Body=body;
       return Send();
      }
     

      #endregion

      #region Private Helper Functions

      /// <summary>
      /// 添加一个收件人
      /// </summary>
      /// <param name="Recipients">收件人地址</param>
      private bool AddRecipient(string Recipients)
      {
       if(RecipientNum<recipientmaxnum)
       {
        Recipient.Add(RecipientNum,Recipients);
        RecipientNum++;   
        return true;
       }
       else
       {
        Dispose();
        throw(new ArgumentOutOfRangeException("Recipients","收件人过多不可多于 "+ recipientmaxnum  +"

    个"));
       }
      }

      void Dispose()
      {
       if(ns!=null)ns.Close();
       if(tc!=null)tc.Close();
      }

      /// <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="str">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="str">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>
      /// 发送SMTP命令
      /// </summary>
      private bool SendCommand(string str)
      {
       byte[]  WriteBuffer;
       if(str==null||str.Trim()==String.Empty)
       {
        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 = String.Empty;
       byte[]  ReadBuffer = new byte[1024] ;
       try
       {
        StreamSize=ns.Read(ReadBuffer,0,ReadBuffer.Length);
       }
       catch
       {
        errmsg="网络连接错误";
        return "false";
       }

       if (StreamSize==0)
       {
        return ReturnValue ;
       }
       else
       {
        ReturnValue = Encoding.Default.GetString(ReadBuffer).Substring(0,StreamSize);
        logs+=ReturnValue+this.enter;
        return  ReturnValue;
       }
      }

      /// <summary>
      /// 与服务器交互,发送一条命令并接收回应。
      /// </summary>
      /// <param name="str">一个要发送的命令</param>
      /// <param name="errstr">如果错误,要反馈的信息</param>
      private bool Dialog(string str,string errstr)
      {
       if(str==null||str.Trim()=="")
       {
        return true;
       }
       if(SendCommand(str))
       {
        string RR=RecvResponse();
        if(RR=="false")
        {
         return false;
        }
        string RRCode=RR.Substring(0,3);
        if(RightCodeHT[RRCode]!=null)
        {
         return true;
        }
        else
        {
         if(ErrCodeHT[RRCode]!=null)
         {
          errmsg+=(RRCode+ErrCodeHT[RRCode].ToString());
          errmsg+=enter;
         }
         else
         {
          errmsg+=RR;
         }
         errmsg+=errstr;
         return false;
        }
       }
       else
       {
        return false;
       }

      }


      /// <summary>
      /// 与服务器交互,发送一组命令并接收回应。
      /// </summary>

      private bool Dialog(string[] str,string errstr)
      {
       for(int i=0;i<str.Length;i++)
       {
        if(!Dialog(str[i],""))
        {
         errmsg+=enter;
         errmsg+=errstr;
         return false;
        }
       }

       return true;
      }

      /// <summary>
      /// SendEmail
      /// </summary>
      /// <returns></returns>
      private bool SendEmail()
      {
       //连接网络
       try
       {
        tc=new TcpClient(mailserver,mailserverport);
       }
       catch(Exception e)
       {
        errmsg=e.ToString();
        return false;
       }

       ns = tc.GetStream();
       SMTPCodeAdd();

       //验证网络连接是否正确
       if(RightCodeHT[RecvResponse().Substring(0,3)]==null)
       {
        errmsg="网络连接失败";
        return false;
       }


       string[] SendBuffer;
       string SendBufferstr;

       //进行SMTP验证
       if(ESmtp)
       {
        SendBuffer=new String[4];
        SendBuffer[0]="EHLO " + mailserver + enter;
        SendBuffer[1]="AUTH LOGIN" + enter;
        SendBuffer[2]=Base64Encode(username) + enter;
        SendBuffer[3]=Base64Encode(password) + enter;
        if(!Dialog(SendBuffer,"SMTP服务器验证失败,请核对用户名和密码。"))
         return false;
       }
       else
       {
        SendBufferstr="HELO " + mailserver + enter;
        if(!Dialog(SendBufferstr,""))
         return false;
       }

       //
       SendBufferstr="MAIL FROM:<" + From + ">" + enter;
       if(!Dialog(SendBufferstr,"发件人地址错误,或不能为空"))
        return false;

       //
       SendBuffer=new string[recipientmaxnum];
       for(int i=0;i<Recipient.Count;i++)
       {
        SendBuffer[i]="RCPT TO:<" + Recipient[i].ToString() +">" + enter;

       }
       if(!Dialog(SendBuffer,"收件人地址有误"))
        return false;

       /*
          SendBuffer=new string[10];
          for(int i=0;i<RecipientBCC.Count;i++)
          {

           SendBuffer[i]="RCPT TO:<" + RecipientBCC[i].ToString() +">" + enter;

          }

          if(!Dialog(SendBuffer,"密件收件人地址有误"))
           return false;
       */
       SendBufferstr="DATA" + enter;
       if(!Dialog(SendBufferstr,""))
        return false;

       SendBufferstr="From:" + FromName + "<" + From +">" +enter;

       //if(ReplyTo.Trim()!="")
       //{
       // SendBufferstr+="Reply-To: " + ReplyTo + enter;
       //}

       //SendBufferstr+="To:" + RecipientName + "<" + Recipient[0] +">" +enter;
       SendBufferstr += "To:=?"+Charset.ToUpper()+"?B?"+Base64Encode(RecipientName)+"?="+"<"+Recipient[0]

    +">"+enter;
      
       SendBufferstr+="CC:";
       for(int i=0;i<Recipient.Count;i++)
       {
        SendBufferstr+=Recipient[i].ToString() + "<" + Recipient[i].ToString() +">,";
       }
       SendBufferstr+=enter;

       SendBufferstr+=((Subject==String.Empty || Subject==null)?"Subject:":((Charset=="")?("Subject:" +

    Subject):("Subject:" + "=?" + Charset.ToUpper() + "?B?" + Base64Encode(Subject) +"?="))) + enter;
       SendBufferstr+="X-Priority:" + priority + enter;
       SendBufferstr+="X-MSMail-Priority:" + priority + enter;
       SendBufferstr+="Importance:" + priority + enter;
       SendBufferstr+="X-Mailer: Lion.Web.Mail.SmtpMail Pubclass [cn]" + enter;
       SendBufferstr+="MIME-Version: 1.0" + enter;
       if(Attachments.Count!=0)
       {
        SendBufferstr+="Content-Type: multipart/mixed;" + enter;
        SendBufferstr += " boundary=\"====="+

    (Html?"001_Dragon520636771063_":"001_Dragon303406132050_")+"=====\""+enter+enter;
       }

       if(Html)
       {
        if(Attachments.Count==0)
        {
         SendBufferstr += "Content-Type: multipart/alternative;"+enter;//内容格式和分隔符
         SendBufferstr += " boundary=\"=====003_Dragon520636771063_=====\""+enter+enter;

         SendBufferstr += "This is a multi-part message in MIME format."+enter+enter;
        }
        else
        {
         SendBufferstr +="This is a multi-part message in MIME format."+enter+enter;
         SendBufferstr += "--=====001_Dragon520636771063_====="+enter;
         SendBufferstr += "Content-Type: multipart/alternative;"+enter;//内容格式和分隔符
         SendBufferstr += " boundary=\"=====003_Dragon520636771063_=====\""+enter+enter;

       
        }
        SendBufferstr += "--=====003_Dragon520636771063_====="+enter;
        SendBufferstr += "Content-Type: text/plain;"+ enter;
        SendBufferstr += ((Charset=="")?(" charset=\"iso-8859-1\""):(" charset=\"" +

    Charset.ToLower() + "\"")) + enter;
        SendBufferstr+="Content-Transfer-Encoding: base64" + enter + enter;
        SendBufferstr+= Base64Encode("邮件内容为HTML格式,请选择HTML方式查看") + enter + enter;

        SendBufferstr += "--=====003_Dragon520636771063_====="+enter;

       

        SendBufferstr+="Content-Type: text/html;" + enter;
        SendBufferstr+=((Charset=="")?(" charset=\"iso-8859-1\""):(" charset=\"" +

    Charset.ToLower() + "\"")) + enter;
        SendBufferstr+="Content-Transfer-Encoding: base64" + enter + enter;
        SendBufferstr+= Base64Encode(Body) + enter + enter;
        SendBufferstr += "--=====003_Dragon520636771063_=====--"+enter;
       }
       else
       {
        if(Attachments.Count!=0)
        {
         SendBufferstr += "--=====001_Dragon303406132050_====="+enter;
        }
        SendBufferstr+="Content-Type: text/plain;" + enter;
        SendBufferstr+=((Charset=="")?(" charset=\"iso-8859-1\""):(" charset=\"" +

    Charset.ToLower() + "\"")) + enter;
        SendBufferstr+="Content-Transfer-Encoding: base64" + enter + enter;
        SendBufferstr+= Base64Encode(Body) + enter;
       }
      
       //SendBufferstr += "Content-Transfer-Encoding: base64"+enter;

      

      
       if(Attachments.Count!=0)
       {
        for(int i=0;i<Attachments.Count;i++)
        {
         string filepath = (string)Attachments[i];
         SendBufferstr += "--====="+

    (Html?"001_Dragon520636771063_":"001_Dragon303406132050_") +"====="+enter;
         //SendBufferstr += "Content-Type: application/octet-stream"+enter;
         SendBufferstr += "Content-Type: text/plain;"+enter;
         SendBufferstr += " name=\"=?"+Charset.ToUpper()+"?B?"+Base64Encode

    (filepath.Substring(filepath.LastIndexOf("\\")+1))+"?=\""+enter;
         SendBufferstr += "Content-Transfer-Encoding: base64"+enter;
         SendBufferstr += "Content-Disposition: attachment;"+enter;
         SendBufferstr += " filename=\"=?"+Charset.ToUpper()+"?B?"+Base64Encode

    (filepath.Substring(filepath.LastIndexOf("\\")+1))+"?=\""+enter+enter;
         SendBufferstr += GetStream(filepath)+enter+enter;
        }
        SendBufferstr += "--====="+ (Html?"001_Dragon520636771063_":"001_Dragon303406132050_")

    +"=====--"+enter+enter;
       }
      
      
      
       SendBufferstr += enter + "." + enter;

       if(!Dialog(SendBufferstr,"错误信件信息"))
        return false;


       SendBufferstr="QUIT" + enter;
       if(!Dialog(SendBufferstr,"断开连接时错误"))
        return false;


       ns.Close();
       tc.Close();
       return true;
      }


      #endregion

      #region
      /*
      /// <summary>
      /// 添加一个密件收件人
      /// </summary>
      /// <param name="str">收件人地址</param>
      public bool AddRecipientBCC(string str)
      {
       if(str==null||str.Trim()=="")
        return true;
       if(RecipientBCCNum<10)
       {
        RecipientBCC.Add(RecipientBCCNum,str);
        RecipientBCCNum++;
        return true;
       }
       else
       {
        errmsg+="收件人过多";
        return false;
       }
      }


      /// <summary>
      /// 添加一组密件收件人(不超过10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10个)</param>
      public bool AddRecipientBCC(string[] str)
      {
       for(int i=0;i<str.Length;i++)
       {
        if(!AddRecipientBCC(str[i]))
        {
         return false;
        }
       }
       return true;
      }

      */  
      #endregion
     }

     #endregion
    }

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  • 原文地址:https://www.cnblogs.com/ltjabc/p/296741.html
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