Sending and Receiving Emails in Asp.net 4.0

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C#

ASP.NET

MailMessage msg = new MailMessage();
            msg.From = new MailAddress(txtFrom.Text);
            msg.To.Add(txtTo.Text);
            msg.To.Add(txtTo.Text);
            msg.Subject = txtSubject.Text;
            msg.Body = txtBody.Text;
            msg.IsBodyHtml = true;
            msg.Priority = MailPriority.High;
           
            SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
            client.EnableSsl = true;
           
            NetworkCredential credentials = new NetworkCredential(""+txtFrom.Text+"", ""+txtSMTPServer.Text+"");
           
            client.Credentials = credentials;
          
               
                client.Send(msg);

This was the code for sending email.I want to Know how to receive email in my application's inbox .How email is sending from other mail id's(hotmail,yahoo etc)