====== Allowing + in email ======
Line 558 of includes/functions/functions_email.php
<code>
$valid_email_pattern = '^[a-z0-9]+[a-z0-9_\.\'\-\+]*@[a-z0-9]+[a-z0-9\.\-]*\.(([a-z]{2,6})|([0-9]{1,3}))$';
</code>