POP3_Client pop3 = new POP3_Client();pop3.Connect("mail.fetag.net", 110, false);pop3.Authenticate("username", "password", false);POP3_ClientMessageCollection cmc = pop3.Messages;foreach (POP3_ClientMessage cm in cmc){
        byte[] bytes = cm.MessageToByte();     Mail_Message m = Mail_Message.ParseFromByte(bytes);    string Subject = m.Subject;    foreach (MIME_Entity entry in m.Attachments)    {
            string FileName = entry.ContentDisposition.Param_FileName;        byte[] data = ((MIME_b_SinglepartBase)entry.Body).Data;         FileStream fs = null;        fs = new FileStream(@"d:\" + FileName, FileMode.Create);        fs.Write(data, 0, data.Length);        fs.Close();    }} /// 下面是接收邮件的类文件

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using LumiSoft.Net.POP3.Client;

using LumiSoft.Net.Mime;

using System.Collections.Generic;

/// <summary>

/// pop 的摘要说明

/// </summary>

public class pop

{

    public List<Mime> GetEmails()

    {

        //需要首先设置这些信息

        string pop3Server = "";    //邮箱服务器 如："pop.sina.com.cn";或 "pop.tom.com" 好像sina的比较快

        int pop3Port=110;          //端口号码   用"110"好使。最好看一下你的邮箱服务器用的是什么端口号

        bool pop3UseSsl=false;

        string username="";        //你的邮箱用户名

        string password = "";      //你的邮箱密码

        List<string> gotEmailIds=new List<string>();

        List<Mime> result = new List<Mime>();

        using (POP3_Client pop3 = new POP3_Client())

        {

            try

            {

             //与Pop3服务器建立连接

            pop3.Connect(pop3Server, pop3Port, pop3UseSsl);

            //验证身份

            pop3.Authenticate(username, password, false);

            //获取邮件信息列表

           POP3_ClientMessageCollection infos = pop3.Messages;

           foreach (POP3_ClientMessage info in infos)

            {

                //每封Email会有一个在Pop3服务器范围内唯一的Id,检查这个Id是否存在就可以知道以前有没有接收过这封邮件

                if (gotEmailIds.Contains(info.UID))

                    continue;

                //获取这封邮件的内容

                byte[] bytes = info.MessageToByte();

                //记录这封邮件的Id

                gotEmailIds.Add(info.UID);

                //解析从Pop3服务器发送过来的邮件信息

                Mime mime = Mime.Parse(bytes);

                result.Add(mime);

            }

           }

             catch (Exception ex)

            {

                throw new Exception(ex.Message);

            } 

        }

        return result;

    }

    //public void ShowEmail(Mime m)

    //{

    //    Console.WriteLine("From: {0}", m.MainEntity.From.ToAddressListString());

    //    Console.WriteLine("To: {0}", m.MainEntity.To.ToAddressListString());

    //    Console.WrtieLine("Time: {0}", m.MainEntity.Date);            //发送时间

    //    Console.WriteLine("Subject: {0}", m.MainEntity.Subject);      //主题

    //    Console.WriteLine("Plain Body: {0}", m.BodyText);             //内容

    //    Console.WriteLine("Html Body: {0}", m.BodyHtml);              //HTML格式内容

    //}

}

下面是调用上面接收类的

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Collections.Generic;

using LumiSoft.Net.Mime;

public partial class _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        pop p = new pop();

        List<Mime> dd = p.GetEmails();        //dd中就可以查找出邮件的内容、主题、发件人等信息。你可以通过调试状态的快速监视查看

         foreach (Mime mdd in dd)

        {

            Page.Response.Write(mdd.MainEntity.Date + "<br><br>");    //发送时 间          Page.Response.Write(mdd.MainEntity.Subject + "<br><br>"); //主题

            Page.Response.Write(mdd.BodyText + "<br><br>");           //内容

        }

                                              //因为时间关系没有写完明天待续。。。

    }

}