// Please note that this was intended for users to enter their email and get a verification email back
// This code was put into a repository to prevent SQL injection, to be even more safe you can enter the email address with password into a second repository


//Not all of these are essential for SMTP
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI;
using System.Web.UI.Webcontrols;
using System.Web.Security;
using System.IO;
using System.Text;
using System.Configuration;
using System.Security.Cryptography;
using System.Net.Mail;
using System.net;

public partial class _Default : System.Web.UI.Page
{
  //button tied to the email sending
  protected void btnSend_Click(object sender, EventArgs e)
  {
    using (MailMessage mail = new MailMessage())
    {
      mail.From = new MailAddress("123@gmail.com"); //enter whatever email you are sending from here
      mail.To.Add(tbEmail.Text); //Text box that the user enters their email address
      mail.Subject = "Email Subject"; //enter whatever subject you would like
      mail.Body = "<p> Dear ......</p> <br> <p> Enter message here </p>";
      mail.IsBodyHtml = true;

      using (SmtpClient smtp = new smtpClient("123@gmail.com", 587)) //enter the same email that the message is sending from along with port 587
      {
        smtp.Credentials = new NetworkCredential("123@gmail.com", "Password123"); //Enter email with password
        smtp.Enablessl = true;
        smtp.Send(mail);
      }

      ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('Please check the email address you entered for an email')", True);

      }
    }
  }