The forward button forwards the article it belongs to and has nothing to do with the whole article set of the ticket. You cannot “resend” or forward a whole ticket to another party. You’ll have to implement something on your own via API.
Thank you for responding. Do you know of any method to do this? We recently encountered this need for the client where we implemented Zammad. It is an insurance brokerage company, and they need to be able to send the ticket history on occasions in order to review it with the insurance companies. It is a very specific case.