The Easy way to Invoice Your Clients

How could I go about adding bcc to the admin. I like to have a copy of emails that are sent out to the customers. I have reasonable php skills, but not sure where or how to go about adding this to your app.

Thanks for a great little app.

sendnotification.php is one place to start. You need to add your info on a second line under this one.
mail ($recipient, $subject, $message, $extra);

mail ($youremail, $subject, $message, $extra);

This should work.