Getting customers emailaddress out of the database

[cDGo IT Consultancy]

Hi there,

 

I want to send my customer an email while they're in my shop.

So I need to get the customers email address out of the database.

Can anyone explain me how to do that?

 

tep_mail('', $order->customer['email_address'], 'Ad Order #' . $insert_id, $message, STORE_OWNER, MODULE_PAYMENT_OMO_EMAIL);

 

It must be something instead of $order->customer['email_address'].

 

Thanks