C# 收发邮件工具源码（邮箱小助手）

支持发送带附件的邮件，支持读取接收到的邮件，发送邮件、接收邮件内容 均测试通过了

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net.Mail;
using LumiSoft.Net.POP3.Client;
using System.Net.Sockets;
using System.Net.Mime;
using System.Net;
using System.IO;
using LumiSoft.Net.Mail;

namespace WindowsFormsmail
{
    
    public partial class Form1 : Form
    {
        public TcpClient Server;
        public NetworkStream NetStrm;
        public StreamReader RdStrm;
        public string Data;
        public byte[] szData;
        public string CRLF = Environment.NewLine;
        POP3_Client client;
        pop mypop = new pop（）;

        public Form1（）
        {
  

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        691  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\config

     文件         73  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\description

     文件         23  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\HEAD

     文件        177  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\hooks\README.sample

     文件       1328  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\index

     文件        113  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\info\exclude

     文件        340  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\logs\HEAD

     文件        340  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\logs\refs\heads\master

     文件        150  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\ms-persist.xml

     文件         89  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\0d\76fe4328089e5b63a9c4190badacfc35ef2624

     文件        234  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\13\26c145203555b8e62d073dd342379262fc027e

     文件       1863  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\1c\9a181a44b4f9a105f0dc71a40ad0284ab6a7c4

     文件        751  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\1f\f0c423042b46cb1d617b81efb715defbe8054d

     文件        399  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\24\f268d12a892e050d361b766e1459c1fe697655

     文件       1240  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\2a\eb1019e0a76c392d882697bcdea9bf5a8e07f3

     文件        192  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\2b\820a7f26852056b436da1925f6d29b0550b77c

     文件        186  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\39\645652af62950ebf3b28ec3a5400dcec30b1c4

     文件        165  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\48\84a96505c327afa5a309516cf4b2d9dae89f87

     文件        591  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\79\cb5bdaac6e6ba1a37675f65419447f0184898a

     文件        317  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\87\ca8ae4f1a05698d8748b055bfc2cf1ac17ab82

     文件        153  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\88\fa4027bda397de6bf19f0940e5dd6026c877f9

     文件        198  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\ae\a61b217d5cde047b2e6dc888b612252d8e0eb4

     文件       1604  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\af\7dbebbacef595e3089c01c05671016c21a8304

     文件        722  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\be\c16f300162a16b5764ca1e945443950fb2c6fd

     文件       1141  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\c1\ccddd9ce56c85ceec09b09408181cf4cfb8d23

     文件        162  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\c2\07d47bc2af65387c929fc39be8f7313fd536cf

     文件        490  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\d2\b40888e4292d41e7d07a0efbbd138cc1178691

     文件        209  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\objects\e3\77b382a78984a9ad853aa40e042ca7855659eb

     文件         41  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.git\refs\heads\master

     文件       2581  2017-12-07 16:10  WindowsFormsmail\WindowsFormsmail\.gitattributes

............此处省略107个文件信息