[Mimedefang] odd empty messages

[Stewart]

Hi all..

Ever since this latest virus outbreak started i've been seeing a number  
of odd messages getting through without being flagged, apparently.  
example follows (munged obfuscation applied):
=========
 From probably-faked at dodo.com.au Tue Feb  3 08:55:32 2004
Return-Path: <probably-faked at dodo.com.au>
Received: from myserver.mydomain.com.au ([unix socket])
	by myserver (Cyrus v2.1.14-IPv6-Debian-2.1.14-3) with LMTP; Tue, 03  
Feb 2004 08:55:32 +1100
X-Sieve: CMU Sieve 2.2
Received: from dodo.com.au (ESS-p-144-138-109-159.mega.tmns.net.au  
[144.138.109.159])
	by myserver. mydomain.com.au (8.12.9/8.12.9/Debian-5) with ESMTP id  
i12LsJEm015522
	for <myuser@ mydomain.com.au>; Tue, 3 Feb 2004 08:54:21 +1100
Message-Id: <200402022154.i12LsJEm015522 at myserver. mydomain.com.au>
From: probably-faked at dodo.com.au
To: myuser@ mydomain.com.au
Subject: Hello
Date: Tue, 3 Feb 2004 07:55:01 +1000
MIME-Version: 1.0
Content-Type: multipart/mixed;  
boundary="----=_NextPart_000_0004_CD05CB46.BD84472F"
X-Priority: 3
X-MSMail-Priority: Normal
X-Scanned-By: MIMEDefang 2.37

This is a multi-part message in MIME format...

------=_NextPart_000_0004_CD05CB46.BD84472F
Content-Type: text/plain;
	charset="Windows-1252"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

The message contains Unicode characters and has been sent as a binary  
attachment.


------=_NextPart_000_0004_CD05CB46.BD84472F--

..and that's all there is.

the log shows nothing unusual that i can see.. it's detecting the bad  
content and setting drop=1 (i'm using action_drop on everything this  
week and stuff the consequences ;-) but it's still delivering.


============
Feb  3 08:55:31 inserver sm-mta[15522]: i12LsJEm015522: from=<  
probably-faked at dodo.com.au>, size=31180, class=0, nrcpts=1,  
msgid=<200402022154.i12LsJEm015522 at inserver.bleach.com.au>,  
proto=ESMTP, daemon=MTA, relay=ESS-p-144-138-109-159.mega.tmns.net.au  
[144.138.109.159]
Feb  3 08:55:31 inserver mimedefang.pl[11244]:  
MDLOG,i12LsJEm015522,bad_filename,text.bat,application/octet-stream,<  
probably-faked at dodo.com.au>,<shannon at bleach.com.au>,Hello
Feb  3 08:55:32 inserver mimedefang.pl[11244]: filter: i12LsJEm015522:   
drop=1
Feb  3 08:55:32 inserver sm-mta[15522]: i12LsJEm015522: Milter change:  
header  Content-Type: from  
multipart/mixed;\n\tboundary="---- 
=_NextPart_000_0004_CD05CB46.BD84472F" to multipart/mixed;  
boundary="----=_NextPart_000_0004_CD05CB46.BD84472F"
Feb  3 08:55:32 inserver sm-mta[15522]: i12LsJEm015522: Milter change:  
header  MIME-Version: from 1.0 to 1.0
Feb  3 08:55:32 inserver sm-mta[15522]: i12LsJEm015522: Milter message:  
body replaced
Feb  3 08:55:32 inserver sm-mta[15522]: i12LsJEm015522: Milter add:  
header: X-Scanned-By: MIMEDefang 2.37
Feb  3 08:55:32 inserver sm-mta[15525]: i12LsJEm015522:  
to=<shannon at bleach.com.au>, delay=00:01:11, xdelay=00:00:00,  
mailer=cyrus, pri=120248, relay=localhost, dsn=2.0.0, stat=Sent



is anyone else getting these, and if so, what do you do about it? this  
MD newbie here isn't sure where to go next...

cheers,
..S.