MailSend.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace dynamicDeduct
{
    public partial class MailSend : Form
    {
        string thisUsername, thisPassword;

        public MailSend(String username, String password)
        {
            InitializeComponent();
            thisUsername = username;
            thisPassword = password;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Main m = new Main();
            m.Show();
            this.Hide();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            dynamic d = new dynamic();
            d.SendEmail(nameTxt.Text, contentTxt.Text, thisUsername,thisPassword);
            MessageBox.Show("Your Feedback Has Been Successfully Sent. Thank You", "Feedback");
            this.Hide();
        }
    }
}