主题：[修改]利用LumiSoft通过pop协议或imap协议接收邮件实例（支持各种邮箱）

mark 内嵌图片转换

Dim bmp As new Bitmap("d:\test.jpg")

Dim ms As new System.Io.MemoryStream()
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg)

Dim arr(ms.Length) As Byte
ms.Position = 0
ms.Read(arr, 0, ms.Length)
ms.Close()

Dim strbaser64 As String = Convert.ToBase64String(arr)

output.show(strbaser64)

'------------------ 还原

Dim bs As Byte() = Convert.FromBase64String(strbaser64)
Dim mms As New IO.MemoryStream(bs)      
Dim image As Image = Image.FromStream(mms)     
image.save("d:\abc.jpg")