使用C#阅读Windows形式的邮件

本文关键字：阅读 Windows 使用 | 更新日期: 2023-09-27 18:26:29

我试图阅读windows格式的电子邮件。这就是它应该在电子邮件收件箱中显示我的第一条消息。首先我尝试使用我的雅虎帐户。代码运行良好，但不会显示我的消息。我得到的结果是："好的，你好，来自popgate-0.8.0.450444 pop113.plus.mail.bf1.yahoo.com"。

这是我的代码：

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.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.IO;
using System.Net.NetworkInformation;
using System.Net.Security;
using System.Net.Sockets;
namespace emailcheck
 {
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }
    private void button1_Click(object sender, EventArgs e)
    {
        try
        {
            // create an instance of TcpClient
            TcpClient tcpclient = new TcpClient();
            // HOST NAME POP SERVER and gmail uses port number 995 for POP
            tcpclient.Connect("pop.mail.yahoo.com", 995);
            // This is Secure Stream // opened the connection between client and POP Server
            System.Net.Security.SslStream sslstream = new SslStream(tcpclient.GetStream());
            // authenticate as client  
            sslstream.AuthenticateAsClient("pop.mail.yahoo.com");
            //bool flag = sslstream.IsAuthenticated;   // check flag
            // Asssigned the writer to stream 
            System.IO.StreamWriter sw = new StreamWriter(sslstream);
            // Assigned reader to stream
            System.IO.StreamReader reader = new StreamReader(sslstream);
            // refer POP rfc command, there very few around 6-9 command
            sw.WriteLine("user@yahoo.com");
            // sent to server
            sw.Flush(); sw.WriteLine("password");
            sw.Flush();
            // RETR 1 will retrive your first email. it will read content of your first email
            sw.WriteLine("RETR 1");
            sw.Flush();
            // close the connection
            sw.WriteLine("Quit ");
            sw.Flush(); string str = string.Empty;
            string strTemp = string.Empty;
            while ((strTemp = reader.ReadLine()) != null)
            {
                // find the . character in line
                if (strTemp == ".")
                {
                    break;
                }
                if (strTemp.IndexOf("-ERR") != -1)
                {
                    break;
                }
                str += strTemp;
            }

            richTextBox1.Text = str;
          //  textBox1.Text ="Congratulation.. ....!!! You read your first gmail email ";
        }
        catch (Exception ex)
        {
            richTextBox1.Text = ex.ToString();
        }
    }
}}

有人能告诉我如何显示信息吗？以及如何检查其他域邮件，如gmail、hotmail等。，

使用C#阅读Windows形式的邮件

为什么在从流中获取电子邮件之前退出？服务器在RETR命令之后立即返回电子邮件内容。

我运行了你的代码，它寻找经典的登录方案：

sw.WriteLine("USER user@gmail.com"); // Refer to RFC 1939
// sent to server
sw.Flush();
strTemp = reader.ReadLine();
sw.WriteLine("PASS password");
sw.Flush();
strTemp = reader.ReadLine();

你现在应该可以接受ie.+OK。欢迎现在你应该可以弹出消息了。

要获取消息内容（从您的代码）：

sw.WriteLine("RETR 1");
sw.Flush();
strTemp = reader.ReadLine();
while ((strTemp = reader.ReadLine()) != null)
{
// find the . character in line
    if (strTemp == ".")
    {
        break;
    }
    if (strTemp.IndexOf("-ERR") != -1)
    {
        break;
    }
    str += strTemp;
}

完整代码

try
        {
            // create an instance of TcpClient
            string str = string.Empty;
            string strTemp = string.Empty;
            TcpClient tcpclient = new TcpClient();
            // HOST NAME POP SERVER and gmail uses port number 995 for POP
            tcpclient.Connect("pop.gmail.com", 995);
            // This is Secure Stream // opened the connection between client and POP Server
            System.Net.Security.SslStream sslstream = new SslStream(tcpclient.GetStream());
            // authenticate as client  
            sslstream.AuthenticateAsClient("pop.gmail.com");
            //bool flag = sslstream.IsAuthenticated;   // check flag
            // Asssigned the writer to stream 
            System.IO.StreamWriter sw = new StreamWriter(sslstream);
            // Assigned reader to stream
            System.IO.StreamReader reader = new StreamReader(sslstream);
            strTemp = reader.ReadLine();
            // refer POP rfc command, there very few around 6-9 command
            sw.WriteLine("USER user@gmail.com");
            // sent to server
            sw.Flush();
            strTemp = reader.ReadLine();
            sw.WriteLine("PASS password");
            sw.Flush();
            strTemp = reader.ReadLine();
            // RETR 1 will retrive your first email. it will read content of your first email
            sw.WriteLine("RETR 1");
            sw.Flush();
            strTemp = reader.ReadLine();
            while ((strTemp = reader.ReadLine()) != null)
            {
                // find the . character in line
                if (strTemp == ".")
                {
                    break;
                }
                if (strTemp.IndexOf("-ERR") != -1)
                {
                    break;
                }
                str += strTemp;
            }
            // close the connection
            sw.WriteLine("Quit ");
            sw.Flush(); 
            while ((strTemp = reader.ReadLine()) != null)
            {
                // find the . character in line
                if (strTemp == ".")
                {
                    break;
                }
                if (strTemp.IndexOf("-ERR") != -1)
                {
                    break;
                }
                str += strTemp;
            }
            //  textBox1.Text ="Congratulation.. ....!!! You read your first gmail email ";
        }
        catch (Exception ex)
        {
        }
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