ASP.NET Read Pop3 Email using C#

 

1. create new asp.net web application

2. add one button in it

3. on button click write following code

 

using System;

using System.Data;

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;

 

protected void Button9_Click(object sender, EventArgs e)

{

 

try

 

{

 

TcpClient tcpclient = new TcpClient(); // create an instance of TcpClient

 

tcpclient.Connect(“pop.gmail.com”, 995); // HOST NAME POP SERVER and gmail uses port number 995 for POP

 

System.Net.Security.SslStream sslstream = new SslStream(tcpclient.GetStream()); // This is Secure Stream // opened the connection between client and POP Server

 

sslstream.AuthenticateAsClient(“pop.gmail.com”); // authenticate as client

 

//bool flag = sslstream.IsAuthenticated; // check flag

 

System.IO.StreamWriter sw = new StreamWriter(sslstream); // Asssigned the writer to stream

 

System.IO.StreamReader reader = new StreamReader(sslstream); // Assigned reader to stream

 

sw.WriteLine(“USER your_gmail_user_name@gmail.com”); // refer POP rfc command, there very few around 6-9 command

 

sw.Flush(); // sent to server

 

sw.WriteLine(“PASS your_gmail_password”);

sw.Flush();

 

sw.WriteLine(“RETR 1”); // this will retrive your first email

 

sw.Flush();

 

sw.WriteLine(“Quit “); // close the connection

 

sw.Flush();

 

string str = string.Empty;

string strTemp = string.Empty;

 

while ((strTemp = reader.ReadLine()) != null)

{

 

if (strTemp == “.”) // find the . character in line

 

{

 

break;

}

 

if (strTemp.IndexOf(“-ERR”) != -1)

{

 

break;

}

 

str += strTemp;

 

}

 

Response.Write(str);

 

Response.Write(“<BR>” + “Congratulation.. ….!!! You read your first gmail email “);

}

 

catch (Exception ex)

{

 

Response.Write(ex.Message);

 

}

 

}