email doesn't send, not sure why

 Hello,
I am hoping someone can help.  I do not see an email in my gmail inbox, and am not sure why.  Can someone help me out?  Here is the code:
Code for the page (this is a child page derived from a master page):
 
<%@ Page Language="C#" MasterPageFile="~/microbizwiz.master" Title="Contact Us" %>
<%@ import namespace="System.Net" %>
<%@ import namespace="System.Net.Mail" %>
 
<script runat="server">
                     
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        MailMessage message = new MailMessage();
 
      &nbs ...