How do I tell spamass-milter that I want to reject the spam?

[Steven W. Orr]

Here's one header:

Received: from mx2.zoneedit.com (mx2.dnsvr.com [216.93.166.122])
        by syslang.net (8.12.9/8.12.9) with ESMTP id h89Brl1Y025001
        for <address@hidden>; Tue, 9 Sep 2003 07:54:21 -0400
Received: from helimore2810.com (unknown [192.116.85.100])
        by mx2.zoneedit.com (Postfix) with SMTP id 7F87412F38B
        for <address@hidden>; Tue,  9 Sep 2003 08:06:05 -0400 
(EDT)
From: "felix" <address@hidden>
Reply-To: address@hidden
To: address@hidden
Date: Tue, 9 Sep 2003 12:52:01 +0100
Subject: 
X-Mailer: Microsoft Outlook Express 5.00.2919.6900 DM
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="----------=_3F5DBF6E.2FD31CBE"
Content-Transfer-Encoding: quoted-printable
Message-Id: <address@hidden>
X-Spam-Flag: YES
X-Spam-Status: Yes, hits=15.0 required=5.0
        tests=FORGED_MUA_OUTLOOK,FROM_ENDS_IN_NUMS,MIME_LONG_LINE_QP,
              NIGERIAN_BODY,RATWARE_OE_MALFORMED,RCVD_IN_OSIRUSOFT_COM,
              US_DOLLARS,X_OSIRU_OPEN_RELAY
        version=2.55
X-Spam-Level: ***************
X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp)

I got this one today, but what I really wanted is for the mail to be 
rejected (hopefully with a 500 series error code).

Am I doing something wrong?

TIA

-- 
-Time flies like the wind. Fruit flies like a banana. Stranger things have -
-happened but none stranger than this. Does your driver's license say Organ
-Donor?Black holes are where God divided by zero. Listen to me! We are all-
-individuals! What if this weren't a hypothetical question?
steveo at syslang.net