Closed -> new Ticket

Used if the customer wrote a follow up and the follow up is rejected and a new ticket is created (because the ticket is closed and not possible to reopen).

A normal closed -> new ticke auto-response should contain somthing like that:
Thanks for your follow up e-mail

You wrote:
<OTRS_CUSTOMER_EMAIL[6]>

Important: Sorry but we can't process your follow up 
because your ticket is closed. A new ticket has been 
created automatically.

Have fun with OTRS!

Your OTRS Team