hi Baburman,

Thank you for your reply.
Now the program is connecting to Gmail.But how to retrive all inbox messages through my program. Please can you help me out.


Thank you with Warm Regards,
Gauri

I have used this example in .net 3.5 When I first gotthe code i was full of errors.
After making a few adjustments it works great Thanks to the poster for the usefulness of the post here is the code with the changes I made "It could still be formatted a little more professionally"

publicpartialclassMailForm : Form
{
SslStream sslStream = null;
public MailForm()
{
InitializeComponent();
}
privatevoid button1_Click(object sender, EventArgs e)
{
// change cursor into wait cursor
Cursor cr = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;
// create server POP3 with port 110
//Server = new TcpClient(POPServ.Text,110);
TcpClient Server = newTcpClient("pop.gmail.com", 995);
//Status.Items.Clear();
try
{
/////////////////////////////////////////////////////////////////////////
sslStream = newSslStream(Server.GetStream(), false, newRemoteCertificateValidationCallback(ValidateServerCertificate), null);
sslStream.AuthenticateAsClient("pop.gmail.com");
string messageData = ReadMessage(sslStream, false);
//Status.Items.Add(messageData);
string Data = "USER " + "[email protected]" + Environment.NewLine ;
byte[] szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());
sslStream.Write(szData, 0, szData.Length);
sslStream.Flush();
messageData = ReadMessage(sslStream, false);
//Status.Items.Add(messageData);
Data = "PASS " + "YOUR PASSWORD" + Environment.NewLine;
szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());
sslStream.Write(szData, 0, szData.Length);
sslStream.Flush();
messageData = ReadMessage(sslStream, false);
//Status.Items.Add(messageData);
Data = "STAT" + Environment.NewLine;
szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());
sslStream.Write(szData, 0, szData.Length);
sslStream.Flush();
messageData = ReadMessage(sslStream, false);
//Status.Items.Add(messageData);
Data = "LIST" + Environment.NewLine;
szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());
sslStream.Write(szData, 0, szData.Length);
sslStream.Flush();
messageData = ReadMessage(sslStream, true);
//Status.Items.Add(messageData);
/////////////////////////////////////////////////////////////////////////

// back to normal cursor
Cursor.Current = cr;
}
catch (InvalidOperationException err)
{
//Status.Items.Add("Error: " + err.ToString());
}
}
publicstaticbool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
if (sslPolicyErrors == SslPolicyErrors.None)
returntrue;
else
returnfalse;
}
publicstaticstring ReadMessage(SslStream sslStream1, bool MultilineResponse)
{
byte[] buffer = newbyte[1024];
int bytes = -1;
StringBuilder messageData = newStringBuilder();
Decoder decoder = Encoding.UTF8.GetDecoder();
char[] chars;
while (true)
{
bytes = sslStream1.Read(buffer, 0, buffer.Length);
if (bytes <= 0)
break;
chars = newchar[decoder.GetCharCount(buffer, 0, bytes)];
decoder.GetChars(buffer, 0, bytes, chars, 0);
messageData.Append(chars);
if (!MultilineResponse)
break;
elseif (messageData.ToString().EndsWith("\r\n.\r\n"))
break;
}
return messageData.ToString();
}
privatevoid button2_Click(object sender, EventArgs e)
{
// change cursor into wait cursor
Cursor cr = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;

try
{
// retrieve mail with number mail parameter
string Data = "RETR " + "1" + Environment.NewLine;
byte[] szData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray());

sslStream.Write(szData, 0, szData.Length);
sslStream.Flush();
string messageData = ReadMessage(sslStream, true);
webBrowser1.DocumentText = messageData;

// back to normal cursor
Cursor.Current = cr;
}
catch (InvalidOperationException err)
{
//Status.Items.Add("Error: " + err.ToString());
}
}


}