<system.net>
      <mailSettings>
         <smtp deliveryMethod="Network" from="Sahil Nazir Zargar &lt;[email protected]&gt;">
                 <network host="smtp.gmail.com"  enableSsl="true" userName="[email protected]" password= "******" port="6129" />
         </smtp>
      </mailSettings>      
   </system.net>

 protected void Page_Load(object sender, EventArgs e)
    {
       //creating an instance of the mailmessage class form System.Net.Mail
       MailMessage mymessage = new MailMessage();

       // using the Mailmessage class properties
       mymessage.Subject = "Test Mail";

       mymessage.Body = "This is a test mail sent from Planet Sahil to check the ASP.net System.Net.mail class properties";

    
       mymessage.From = new MailAddress("[email protected]", "Sahil Nazir Zargar");
       mymessage.To.Add(new MailAddress("[email protected]", "Sahil Nazir Zargar"));
       //mymessage.CC.Add (new MailAddress("[email protected]", "Sahil Zargar"));

      //SmtpClient mySmtp = new SmtpClient("10.237.216.90");
      SmtpClient mySmtp = new SmtpClient();
      mySmtp.Send(mymessage);
    }