The remote name could not be resolved: 'smtp.gmail.com'

protected void btnSubmit_Click(object sender, EventArgs e)
    {

        MailMessage Msg = new MailMessage();
        Msg.From = new MailAddress("lathag3093@gmail.com");
        Msg.To.Add(txtToMail.Text);
        //Msg.Subject = txtSubject.Text;
        Msg.Body = txtSubject.Text;
        Msg.IsBodyHtml = true;

        SmtpClient smtp = new SmtpClient();
        smtp.Host = "smtp.gamil.com";
        System.Net.NetworkCredential NetworkCred = new System.Net.NetworkCredential();
        NetworkCred.UserName = "lathag3093gmail.com";
        NetworkCred.Password = "";
        smtp.UseDefaultCredentials = true;
       
        smtp.Credentials = NetworkCred;
        smtp.Port = 587;
        smtp.EnableSsl = true;
        smtp.Send(Msg);
        lblMsg.Text = "Email has been successfully sent..!!";



    }