如何使用asp.net从gmail读取电子邮件

问题描述

如何使用asp.net从gmail中读取电子邮件

How to read email from gmail using asp.net

推荐答案

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
{
// create an instance of TcpClient
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);
// refer POP rfc command, there very few around 6-9 command
sw.WriteLine("USER [email protected]");
// sent to server
sw.Flush();
sw.WriteLine("PASS your_gmail_password");
sw.Flush();
// this will retrive 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;
}
Response.Write(str);
Response.Write("<BR>" + "Congratulation.. ....!!! You read your first gmail email ");
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
}

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