Spam Report Message problem

[Balzi Andrea <an...@arthis.it>]

Hi
 
I'm try to change the message in to Spam-Report message.
In to the mail detected like a spam I found the follow header.

X-Spam-Report: Spam detection software, running on the system
"srv-relay.arthis.it", has
        identified this incoming email as possible spam.  The original
message
        has been attached to this so you can view it (if it isn't spam)
or label
        similar future email.  If you have any questions, see
        the administrator of that system for details.

I've try to change in to 10_misc.cf the report message and after I've
restar spamd, but the header don't change.

Where I mistake?

Andrea