C# 获取邮箱里邮件的内容

q19871117 2010-02-03 10:17:24

我想把邮箱里没未读的邮件的内容读取出来如何实现。

根据邮件的时间和标题读取只定的邮件

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llj0772 2011-08-05

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怎么不完整呢？

meyaomm 2011-05-22

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E6导航全面上线，欢迎大家访问：http://www.eeeeee6.com，记住了是6个e哦，我们将为您打造一个绿色的上网平台，也期待您的推荐。

女人的阳光 2011-02-25

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111

readfuture 2010-02-03

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友情帮顶。

jasper 2010-02-03

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用vba还是比较容易的，用c#没做过
CSDN download上搜一下VbaOutlook.chm，里面介绍了outlook的一些对象

mayonglong 2010-02-03

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1楼不错啊，写这么多

Dobzhansky 2010-02-03

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POP 是离线的, IMAP 支持在线

看需要和服务器支持情况选用合适的协议.

睡神在睡觉 2010-02-03

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邮箱里的邮件未读和已读你自己来配置就好，在本地程序里放给配置文件已读的标记上，未读的不标记等等，自己来区分就好。

收发邮件遵循的是SMTP/POP协议，你需要做的就是按照协议来解析邮件，邮件编码一般是Base64的，读取指定邮件，可以用JMail也可以用Email做。
JMail的例子方法网上多的要死，直接baidu加Google就可以了，给你提供一个EMail的方法吧，这个是需要EMail.dll文件就可以，网上可以下的到的。



class Pop3

    {

        string POPServer;

        string user;

        string pwd;

        int port;

        public static string Data_ = "";



        /// <summary>

        /// 接收邮件服务器相关信息

        /// </summary>

        /// <param name="server">参数 pop邮件服务器地址 </param>

        /// <param name="user">参数 登录到pop邮件服务器的用户名 </param>

        /// <param name="pwd">参数 登录到pop邮件服务器的密码</param>

        /// <returns>无返回</returns>

        public Pop3(string server, string _user, string _pwd, int _port)

        {

            POPServer = server;

            user = _user;

            pwd = _pwd;

            port = _port;

        }



        /// <summary>

        /// 获取服务器上邮件总数

        /// </summary>

        /// <returns></returns>

        public int GetNewMessage()

        {

            POP3 objPOP3 = new POP3(POPServer, user, pwd);

            objPOP3.Connect();

            objPOP3.Login();

            objPOP3.QueryServer();

            int EmailCount = objPOP3.TotalMailCount;

            objPOP3.Close();

            return EmailCount;

        }

   /// <summary>

        /// 保存服务器上所有邮件

        /// </summary>

        /// <param name="SerName"></param>

        /// <param name="UserName"></param>

        /// <param name="Password"></param>

        /// <returns></returns>

        public DataTable main()

        {

            POP3 objPOP3 = new POP3(POPServer, user, pwd);

            objPOP3.Connect();



            objPOP3.Login();

            objPOP3.QueryServer();

            int EmailCount = objPOP3.TotalMailCount;

            DataTable dt = new DataTable("邮件");

            dt.Columns.Add("FROM");//发件人 

            dt.Columns.Add("TO");//收件人 

            dt.Columns.Add("CC");//回复 

            dt.Columns.Add("SUBJECT");//主题 

            dt.Columns.Add("DATE");//日期 

            dt.Columns.Add("CONTENT-TYPE");

            dt.Columns.Add("CHARSET");

            dt.Columns.Add("MESSAGE-ID");//邮件id 

            dt.Columns.Add("MESSAGE SIZE");//大小 

            dt.Columns.Add("EMAILOBJ");//内容 

            dt.Columns.Add("Attachments");//附件 

            dt.Columns.Add("FILEDIR");//保存目录 

            int sum = 0;

            for (int i = 1; i <= EmailCount; i++)

            {

                EmailMessage objEmail = objPOP3.GetMessage(i, false); // use true to get headers only 

                DataRow dr = dt.NewRow();

                dr[0] = objEmail.From;

                dr[1] = objEmail.To;

                dr[2] = objEmail.Cc;

                dr[3] = objEmail.Subject;

                dr[4] = objEmail.Date;

                dr[5] = objEmail.ContentType;

                dr[6] = objEmail.Charset;

                dr[7] = objEmail.GetCustomHeader("Message-ID");

                dr[8] = objEmail.Size;

                dr[9] = QPDecode(objEmail.Body, System.Text.Encoding.Default);



                string fj = "";

                if (objEmail.IsAnyAttachments)

                {

                    for (int a = 0; a < objEmail.Attachments.Count; a++)

                    {

                        Attachment objFile = (Attachment)objEmail.Attachments[a];

                        if (!objFile.IsFileAttachment)

                        {

                            if (objFile.TextBody != null)

                            {

                                sum++;

                                fj += sum.ToString() + ":" + objFile.FileName;

                                if (!System.IO.Directory.Exists(@"d:\pop3\fj"))

                                {

                                    System.IO.Directory.CreateDirectory(@"d:\pop3\fj");

                                }

                                StreamWriter swfj = new StreamWriter(@"d:\pop3\fj\" + sum.ToString() + "_" + objFile.FileName);

                                ;

                                swfj.Write(objFile.Data);

                                swfj.Close();

                            }

                        }

                    }

                }

                dr[10] = fj;

                dr[11] = @"d:\pop3\m_" + i.ToString() + ".eml";

                dt.Rows.Add(dr);//构建DataTable的数据 

                if (!System.IO.Directory.Exists(@"d:\pop3"))

                {

                    System.IO.Directory.CreateDirectory(@"d:\pop3");

                }

                StreamWriter sw = new StreamWriter(@"d:\pop3\m_" + i.ToString() + ".eml");

                sw.Write(objEmail.ToString());

                sw.Close();

            }

            objPOP3.Close();

            return dt;



        }



        public string QPDecode(string data, Encoding encoding)

        {

            char ch;

            string ret = "";



            byte[] bytes = new byte[data.Length];

            int bIdex = 0;



            try

            {

                for (int rIndex = 0; rIndex < data.Length; rIndex++)

                {

                    ch = data[rIndex];

                    if (ch == '=')

                    {

                        rIndex++;

                        if (rIndex < data.Length && (Char.IsDigit(data[rIndex]) || Char.IsLetter(data[rIndex])))

                        {

                            bytes[bIdex++] = Byte.Parse(data.Substring(rIndex++, 2), System.Globalization.NumberStyles.HexNumber);

                            continue;

                        }

                        if (rIndex < data.Length && data[rIndex] == '\r' && (rIndex + 1) < data.Length && data[rIndex + 1] == '\n')

                        {

                            rIndex++;

                            continue;

                        }

                    }

                    if (ch == '\r' || ch == '\n')

                        continue;

                    bytes[bIdex++] = (byte)ch;

                }

                ret = encoding.GetString(bytes, 0, bIdex);

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex.Message);

            }

            return ret;

        }



        /// <summary>

        /// base64编码转16进制

        /// </summary>

        /// <param name="code">base64编码字符串</param>

        /// <returns></returns>

        private byte[] DecodeBase64(string code) //string code_type,

        {

            string st = code + "000";//

            string strcode = st.Substring(0, (st.Length / 4) * 4);

            byte[] bytes = Convert.FromBase64String(strcode);

            return bytes;

        }



        //UTC时间转WINDOWS时间

        public DateTime UTCToDateTime(double l)

        {

            DateTime dtZone = new DateTime(1970, 1, 1, 0, 0, 0);



            dtZone = dtZone.AddSeconds(l);



            return dtZone.ToLocalTime();

        }



        //WINDOWS时间转UTC时间

        public double DateTimeToUTC(DateTime vDate)

        {

            TimeZone tz = TimeZone.CurrentTimeZone;



            vDate = vDate.ToUniversalTime();



            DateTime dtZone = new DateTime(1970, 1, 1, 0, 0, 0);



            return vDate.Subtract(dtZone).TotalSeconds;

        }

        /// <summary>

        /// 提取指定邮件附件内容

        /// </summary>

        /// <param name="MessageNum">邮件编号</param>

        /// <returns></returns>

        public string Attachments_to_resolve(int COUNT)

        {

            string back = "";

            string temp = "";

            try

            {

                int NewNum = 0;

                POP3 objPOP3 = new POP3(POPServer, user, pwd);

                objPOP3.Connect();

                objPOP3.Login();

                objPOP3.QueryServer();



                int EmailCount = objPOP3.TotalMailCount;

                if (COUNT <= EmailCount)

                    NewNum = EmailCount - COUNT;

                int[] email_new = new int[NewNum];

                for (int i = 1; i < NewNum + 1; i++)

                {

                    email_new[i - 1] = COUNT + i;

                }



                EmailMessage objEmail;

                for (int cnt = 1; cnt < email_new.Length + 1; cnt++)

                {

                    back = "";

                    objEmail = objPOP3.GetMessage(email_new[cnt - 1], false);

                    string body = objEmail.Body.ToString();

                    int i = body.IndexOf("base64\r\n\r\n");

                    if (i > 0)

                    {

                        body = body.Substring(i + 10, 16);

                        //编码邮件内容

                        byte[] body_ = DecodeBase64(body);

                      //你要做的操作

                  }

                objPOP3.Close();

                string tmp_time = DateTime.Now.ToString();

                if (NewNum != 0)

                    back = "成功！本次共解析" + NewNum.ToString() + "封邮件于" + tmp_time + "。\r\n" + temp;

                else

                    back = "本次查询于" + tmp_time + "  未找到新邮件!\r\n";

                E_Mail.COUNT = EmailCount;

            }

            catch { back = "失败！\r\n"; }



            return back;

     }

}