public void sendEmail( string to,string body)
    {
        try
        { 
            MailMessage message = new MailMessage(to, "aryadevsudershan000@gmail.com", "Mail",body);
            message.IsBodyHtml = true;
            SmtpClient client = new SmtpClient("smtp.gmail.com",25);
            client.EnableSsl = true;
            client.Credentials = new System.Net.NetworkCredential("aryadevsudershan000@gmail.com", "sirijhamiham91");
         
            client.Send(message);
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }
    void myemail(string email,string body,string subject)//best function
    {
            MailMessage mm = new MailMessage("aryadevsudershan000@gmail.com", email.ToLower());
            mm.Subject = subject;
            mm.Body = body;
            mm.IsBodyHtml = true;
            SmtpClient smtp = new SmtpClient();
            smtp.Host = "smtp.gmail.com";
            smtp.EnableSsl = true;
            NetworkCredential NetworkCred = new NetworkCredential("aryadevsudershan000@gmail.com", "sirijhamiham91");
            smtp.UseDefaultCredentials = true;
            smtp.Credentials = NetworkCred;
            smtp.Port = 587;
            smtp.Send(mm);
            ClientScript.RegisterStartupScript(GetType(), "alert", "alert('Email sent.');", true);
    }