OpenPop邮件接收发送+解析

包含接收、发送、解析、附件上传下载，自我认为对于初学者代码理解还是有点难度的。界面不怎么样，自己去改改咯！

using System.Reflection;

// This file is linked to by other OpenPop projects to make
// sure that commen assembly information is shared correctly
[assembly: AssemblyVersion（“2.0.5“）]

// This is the configuration when building the assembly
[assembly: AssemblyConfiguration（“Release mode assembly. Built for .NET 2.0“）]

// Just some plain boring Assembly information
[assembly: AssemblyCompany（“OpenPop“）]
[assembly: AssemblyProduct（“OpenPop“）]
[assembly: AssemblyTrademark（“OpenPop“）]

// To clarify this License:
// See http://creativecommons.org/publicdomain/zero/1.0/
[assembly: AssemblyCopyright（“Public Domain“）]

// OpenPop is culture neutral which is specified with an emptry string
[assembly: AssemblyCulture（““）]

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2013-05-18 02:08  OpenPop.NET 2.0.5\
     目录           0  2011-08-26 19:41  OpenPop.NET 2.0.5\binaries\
     目录           0  2013-05-18 01:46  OpenPop.NET 2.0.5\binaries\signed （strong name）\
     文件       69632  2013-05-18 02:03  OpenPop.NET 2.0.5\binaries\signed （strong name）\OpenPop.dll
     目录           0  2013-05-18 01:51  OpenPop.NET 2.0.5\binaries\unsigned\
     文件       69632  2013-05-18 02:02  OpenPop.NET 2.0.5\binaries\unsigned\OpenPop.dll
     目录           0  2013-05-18 01:48  OpenPop.NET 2.0.5\OpenPop.NET Documentation\
     文件       85738  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\contents.html
     文件         708  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\index.html
     文件         887  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\intevent.gif
     文件         897  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\intfield.gif
     文件         904  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\intmethod.gif
     文件         884  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\intoperator.gif
     文件         909  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\intproperty.gif
     文件        8441  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\MSDN.css
     文件        2962  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DefaultLogger.html
     文件        2566  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DefaultLogger.Log.html
     文件        3226  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DefaultLogger.SetLog.html
     文件        3275  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DefaultLogger~Members.html
     文件        2591  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DefaultLogger~Methods.html
     文件        2839  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DefaultLogger~Properties.html
     文件        3199  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DiagnosticsLogger.html
     文件        2692  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DiagnosticsLogger.LogDebug.html
     文件        2693  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DiagnosticsLogger.LogError.html
     文件        2249  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DiagnosticsLogger.~ctor.html
     文件        3486  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DiagnosticsLogger~Members.html
     文件        2849  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.DiagnosticsLogger~Methods.html
     文件        2280  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.FileLogger.Enabled.html
     文件        3019  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.FileLogger.html
     文件        2626  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.FileLogger.LogDebug.html
     文件        2627  2013-05-18 01:43  OpenPop.NET 2.0.5\OpenPop.NET Documentation\OpenPop~OpenPop.Common.Logging.FileLogger.LogError.html
............此处省略340个文件信息