Unless this code is for the Florida-based hosting company MyCompany.com, you (and they) would be better off using the standard example domain name - example.com (look it up)
Could you try posting the relevant code only here, and cut out all the bits that have nothing to do with the problem (if you're not sure what they are, try taking them out and check that the problem remains). I can't find anything in that text file to do with sending emails. I do find three identical lines
if(isset($_POST['updatesitemap'])) $_POST['updatesitemap'] = $VarSecurity->Security($_POST['updatesitemap']);
if(isset($_POST['updatesitemap'])) $_POST['updatesitemap'] = $VarSecurity->Security($_POST['updatesitemap']);
if(isset($_POST['updatesitemap'])) $_POST['updatesitemap'] = $VarSecurity->Security($_POST['updatesitemap']);
But I don't think that has anything to do with sending an email.