在Windows窗体中阅读邮件使用C＃ [英] Reading Mail in Windows form Using C#
本文介绍了在Windows窗体中阅读邮件使用C＃的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
这是我的代码：
using System;
使用System.Collections.Generic;
使用System.ComponentModel;
使用System.Data;
使用System.Drawing;
使用System.Linq;
使用System.Text;
使用System.Threading.Tasks;
使用System.Windows.Forms;
使用System.Configuration;
使用System.Web;
使用System.Web.Security;
使用System.Web.UI;
使用System.Web.UI.WebControls;
使用System.Web.UI.WebControls.WebParts;
使用System.Web.UI.HtmlControls;
使用System.IO;
使用System.Net.NetworkInformation;
使用System.Net.Security;
使用System.Net.Sockets;
命名空间emailcheck
{
public partial class Form1：Form
{
public Form1（）
{
InitializeComponent（） ;
}
private void button1_Click（object sender，EventArgs e）
{
try
{
//创建一个TcpClient的实例
TcpClient tcpclient = new TcpClient（）;
// HOST NAME POP SERVER和gmail使用端口号995作为POP
tcpclient.Connect（pop.mail.yahoo.com，995）;
//这是Secure Stream //打开客户端和POP Server之间的连接
System.Net.Security.SslStream sslstream = new SslStream（tcpclient.GetStream（）） ;
//验证客户端
sslstream.AuthenticateAsClient（pop.mail.yahoo.com）;
// bool flag = sslstream.IsAuthenticated; // check flag
//分配作者流
System.IO.StreamWriter sw = new StreamWriter（sslstream）;
//分配读者流
System.IO.StreamReader reader = new StreamReader（sslstream）;
//参考POP rfc命令，很少有6-9个命令
sw.WriteLine（user@yahoo.com）;
//发送到服务器
sw.Flush（）; sw.WriteLine（ 密码）;
sw.Flush（）;
// RETR 1将会发回您的第一封电子邮件。它会读取您的第一封电子邮件的内容
sw.WriteLine（RETR 1）;
sw.Flush（）;
//关闭连接
sw.WriteLine（Quit）;
sw.Flush（）; string str = string.Empty;
string strTemp = string.Empty;
while（（strTemp = reader.ReadLine（））！= null）
{
//找到。字符在行
if（strTemp ==。）
{
break;
}
if（strTemp.IndexOf（ - ERR）！= -1）
{
break;
}
str + = strTemp;
}
richTextBox1.Text = str;
// textBox1.Text =祝贺.. .... !!!你读了你的第一个Gmail邮件;
}
catch（Exception ex）
{
richTextBox1.Text = ex.ToString（）;
}
}
}}
有谁能告诉我显示消息？还有如何检查其他域邮件，如gmail，hotmail等，
解决方案
为什么在从流中获取电子邮件之前退出？
服务器在RETR命令之后返回电子邮件的内容。
我运行了你的代码，它寻找经典的登录方案：
sw.WriteLine（USER user@gmail.com）; //参考RFC 1939
//发送到服务器
sw.Flush（）;
strTemp = reader.ReadLine（）;
sw.WriteLine（PASS password）;
sw.Flush（）;
strTemp = reader.ReadLine（）;
您现在应该使用ie来确定。 + OK。欢迎。
现在你应该能够弹出消息。
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）
{
//找到。字符在行
if（strTemp ==。）
{
break;
}
if（strTemp.IndexOf（ - ERR）！= -1）
{
break;
}
str + = strTemp;
}
完整代码
try
{
//创建一个TcpClient的实例
string str = string.Empty;
string strTemp = string.Empty;
TcpClient tcpclient = new TcpClient（）;
// HOST NAME POP SERVER和gmail使用端口号995作为POP
tcpclient.Connect（pop.gmail.com，995）;
//这是Secure Stream //打开客户端和POP Server之间的连接
System.Net.Security.SslStream sslstream = new SslStream（tcpclient.GetStream（）） ;
//验证客户端
sslstream.AuthenticateAsClient（pop.gmail.com）;
// bool flag = sslstream.IsAuthenticated; // check flag
//分配作者流
System.IO.StreamWriter sw = new StreamWriter（sslstream）;
//分配读者流
System.IO.StreamReader reader = new StreamReader（sslstream）;
strTemp = reader.ReadLine（）;
//参考POP rfc命令，很少有6-9个命令
sw.WriteLine（USER user@gmail.com）;
//发送到服务器
sw.Flush（）;
strTemp = reader.ReadLine（）;
sw.WriteLine（PASS password）;
sw.Flush（）;
strTemp = reader.ReadLine（）;
// RETR 1将会发回您的第一封电子邮件。它会读取您的第一封电子邮件的内容
sw.WriteLine（RETR 1）;
sw.Flush（）;
strTemp = reader.ReadLine（）;
while（（strTemp = reader.ReadLine（））！= null）
{
//找到。字符在行
if（strTemp ==。）
{
break;
}
if（strTemp.IndexOf（ - ERR）！= -1）
{
break;
}
str + = strTemp;
}
//关闭连接
sw.WriteLine（Quit）;
sw.Flush（）;
while（（strTemp = reader.ReadLine（））！= null）
{
//找到。字符在行
if（strTemp ==。）
{
break;
}
if（strTemp.IndexOf（ - ERR）！= -1）
{
break;
}
str + = strTemp;
}
// textBox1.Text =祝贺.. .... !!!你读过你的第一个Gmail邮件;
}
catch（Exception ex）
{
}
I have tried to read my email in windows form . That is it should show my first message in email inbox. First i tried using my yahoo account . Code works fine but its not showing my message . Just am getting this result : " +OK hello from popgate-0.8.0.450444 pop113.plus.mail.bf1.yahoo.com ".
Here is my code:
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();
}
}
}}
Can anyone tell me how to show the message ? And also how to check other domain mails like gmail,hotmail etc .,
解决方案
Why you Quit before getting your email from stream? Server returns content of email right after RETR command.
i ran your code, and it looks for classic scheme of logging in:
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();
You should get OK right now with ie. +OK. Welcome. Now you should be able to pop messages.
To get message content (from your code):
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;
}
complete code
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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