Non-English Filter Questions

Here is some fabulous non-english SPAM headers.  I have given up on heavy
body filters as they tend to completely bog down my system.

One general question.  Could a reject action be added instead of discard?  I
am guessing that you need to accept the message to filter it before you
could reject it defeating the point.  I assume that PO accept the entire
message then filters it then discards it.

Here are some filters I am tying to create:

1.) Content Type

Is possible to filter by content type?  If not Tenon please add this as a
filter.  It would be great.


Return-Path: <hk@xxxxxx>
Received: from hk.com ([61.236.128.64]) by freya.wavefront.ca
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          with ESMTP id ca for <dan@xxxxxxxxxxxx>;
          Sun, 17 Nov 2002 04:56:32 -0700
From: hk@xxxxxx
Subject: =?GB2312?B?yKvH8uBdvP612Na3?=
To: dan@xxxxxxxxxxxx
Content-Type: text/html;charset="GB2312"
Reply-To: hk@xxxxxx
Date: Sun, 17 Nov 2002 19:52:05 +0800
X-Priority: 3
X-Mailer: Microsoft Outlook Express 5.00.2615.200

2.) Non English Subject Lines

How would one filter these subjects so that the =xx=xx=xxx=xx=xxx=xx pattern
is filtered with our killing legit e-mail.  I would think that =xx=xx=xx
would be enough.  Can some one help me with a regexp for this?  Is there a
good FAQ / book on this subject?

The second spam has the character set (ks_c_5601-1987) in the subject.  Do
just place this text "ks_c_5601-1987' as a subject filter with out *'s or
()'s or []'s??


Return-Path: <RKpk3yED@xxxxxxxxxxxxxxxx>
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    by tpts6.seed.net.tw with SMTP id NPMBajT9vOb1SuVydZ0VC0mJJo;
    Sat, 16 Nov 2002 13:03:57 +0800
Message-ID: <xXw3oJKnwXS@xxxxxxxxxxxxxxxx>
From: Amity
To: H
Subject: =?big5?Q?=A7A=B7Q=A4=EB=A4J=A4=BB=A6=EC=BC=C6=A6r=B6=DC=3F
=AC=DD=A7=B9=ABO=C3=D2=A7A=A5i=A5H!?=
MIME-Version: 1.0
Content-Type: multipart/related;
    type="multipart/alternative";
    boundary="----=_NextPart_vVTkcmCxNalNAkdv"
X-Mailer: iJKkpVszZk0DfktzYCtXFctHSwCU
X-Priority: 3
X-MSMail-Priority: Normal


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          Mon, 18 Nov 2002 23:15:38 -0700
From: º?µø±' <jmh0001@xxxxxxxxxxx>
To:
Subject:
=?ks_c_5601-1987?q?[=B1=A4=B0=ED]=B9=AB=B7=E1_=C0=DA=B5=BF=C2=F7=BA=B8=C7=E8
_=B0=DF=C0=FB=B9=DE=C0=B8=BC=BC=BF=E4...?=
Date: Tue, 19 Nov 2002 15:14:17 +0900
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