In the WA_UniversalEmail/mail_PHP.php file, try changing:
$mailObj = mail($mailTo,$mailSubject,$mailContent,$mailHeader );
$mailObj = mail($mailTo,$mailSubject,$mailContent,$mailHeader , "-f".$mailFrom);
GoDaddy can be notoriously difficult with sending mail using the php mail() function.
Is your hosting account with them a Linux account? I have heard horror stories about getting the mail() function to work on windows hosting plans with GoDaddy.