I checked the bugtracker and my mailing list archives prior to sending
this question.
Basically, we find that the Subject line of this particular email
contains a Unicode apostrophe, and thus the entire thing is encoded in
UTF-8.
However, the part that the filter is looking for is, once you strip the
base64 encoding, perfectly normal ASCII.
The system in question is running OpenSuSE 10.2, DBmail 2.2.13 (just
recompiled this year), not sure which libsieve version, it's 2.2 something.
--- Begin Message ---
I think I got my filters right now, but there are still some emails
that don't get filtered. For example, this one arrived into my inbox.
Note that there are many,many others that were correctly filtered by
the same rule that should have applied here. So, I checked the source
of the message and it is weird, see down below....

-------- Original Message --------
#4438: The command get_low_skew doesn’t returns the nets which are connected with
m_rbuf.
-------------------------+--------------------------------------------------
Reporter: shahen | Owner: shahen
Type: enhancement | Status: closed
Priority: major | Milestone: 10.1
Component: shell | Resolution: fixed
Keywords: iobank-1.2 | Effort: 0
Category: |
-------------------------+--------------------------------------------------
Changes (by shahen):
* status: fixed => closed
* resolution: => fixed
--
Ticket URL: <https://mtrac.m2000.com/trac/ticket/4438#comment:4>
M2000 Software Trac <https://mtrac.m2000.com/>
Software team trac
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Received: from goose.bievres.m2000.com (unknown [192.168.12.1])
by pigeon.m2000.com (Postfix) with ESMTP id 2AB061C15F4;
Fri, 15 Jan 2010 10:02:56 +0100 (CET)
Received: from goose.bievres.m2000.com (localhost.localdomain [127.0.0.1])
by goose.bievres.m2000.com (Postfix) with ESMTP id BA755E8052;
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From: "M2000 Software Trac" <[email protected]>
X-Trac-Version: 0.11b2
Precedence: bulk
Cc: [email protected], [email protected], [email protected],
[email protected], [email protected], [email protected]
Auto-Submitted: auto-generated
X-Mailer: Trac 0.11b2, by Edgewall Software
To: [email protected], [email protected]
X-Trac-Project: M2000 Software Trac
Date: Fri, 15 Jan 2010 09:02:55 -0000
Reply-To: [email protected]
X-URL: https://mtrac.m2000.com/
Subject: =?utf-8?b?UmU6IFtNMjAwMCBTb2Z0d2FyZSBUcmFjXSAjNDQzODogVGhlIGNv?=
=?utf-8?b?bW1hbmQgZ2V0X2xvd19za2V3IGRvZXNu4oCZdCByZXR1cm5zIHRo?=
=?utf-8?b?ZSBuZXRzIHdoaWNoIGFyZSBjb25uZWN0ZWQgd2l0aCBtX3JidWYu?=
X-Trac-Ticket-URL: https://mtrac.m2000.com/trac/ticket/4438#comment:4
Message-ID: <[email protected]>
References: <[email protected]>
X-Trac-Ticket-ID: 4438
In-Reply-To: <[email protected]>
Return-Path: [email protected]
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: base64
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YWMK
|
--- End Message ---
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