More descriptive body spam message

[Mauricio Tavares]

	I received a spam mail from one of my other accounts in which their 
spamassassin detected the spam. That is fine, nothing specially really. 
But what it had that was interesting to me was the amount of info shown 
on the body of the message about the said spam:

=============================%< ====================================
Spam detection software, running on the system "freenet9.afn.org", 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.

    [...]

Content analysis details:   (6.9 points, 5.0 required)

  pts rule name              description
---- ---------------------- 
--------------------------------------------------
  0.0 MISSING_MID            Missing Message-Id: header
  1.3 MISSING_HEADERS        Missing To: header
  1.0 BAYES_60               BODY: Bayesian spam probability is 60 to 80%
                             [score: 0.6317]
  0.0 HTML_MESSAGE           BODY: HTML included in message
  1.5 MIME_HTML_ONLY         BODY: Message only has text/html MIME parts
  0.0 FORGED_OUTLOOK_HTML    Outlook can't send HTML message only
  3.1 FORGED_MUA_OUTLOOK     Forged mail pretending to be from MS Outlook

The original message was not completely plain text, and may be unsafe to
open with some email clients; in particular, it may contain a virus,
or confirm that your address can receive spam.  If you wish to view
it, it may be safer to save it to a file and open it with an editor.

=============================%< ====================================

A lot of that MailScanner already does, but in a shorthand version on 
the header. Is there a way to do something like the above, as in append 
that to the top of the body of the mail that by now is already defanged?