No SPAM recoginition for various mails

[Hermann Himmelbauer]

Hi,
I'm using Kolab 2.3.1 on Debian sqeeze and receive a lot of SPAM. When 
looking on my mail headers, it seems that not all mail is scanned by 
Spamassassin - but I have no clue why.

The following is such an example:

---------- snip - unrecognized spam ----------------

Return-Path:<protectoratecross at nymag.com>
Received: from localhost (localhost [127.0.0.1])
	 by hermes.qwer.tk (Cyrus v2.3.16-kolab-nocaps) with LMTPA;
	 Mon, 30 May 2011 16:54:48 +0200
X-Sieve: CMU Sieve 2.3
Received: from localhost (localhost [127.0.0.1])
	by hermes.qwer.tk (Postfix) with ESMTP id 41F051070CB
	for<hermann at himmelbauer-it.at>; Mon, 30 May 2011 16:54:48 +0200 (CEST)
X-Virus-Scanned: by amavisd-new at qwer.tk
Received: from hermes.qwer.tk ([127.0.0.1])
	by localhost (hermes.qwer.tk [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id n1FridkM1cEl for<hermann at himmelbauer-it.at>;
	Mon, 30 May 2011 16:54:48 +0200 (CEST)
Received: from localhost (localhost [127.0.0.1])
	by hermes.qwer.tk (Postfix) with ESMTP id 12C311070D0
	for<hermann at himmelbauer-it.at>; Mon, 30 May 2011 16:54:48 +0200 (CEST)
Received: from microsofb07270.aprec.ru (unknown [91.210.206.13])
	by hermes.qwer.tk (Postfix) with SMTP id B491C1070CB
	for<hermann at qwer.tk>; Mon, 30 May 2011 16:54:47 +0200 (CEST)
Received: (qmail 2525 by uid 525); Mon, 30 May 2011 18:53:03 -0300
From: "Jessica Alba weight loss Free trial sample"<protectoratecross at nymag.com>
To:<hermann at qwer.tk>
Subject: Jessica Alba did it, you can too!
Date: Mon, 30 May 2011 18:08:59 -0300
Message-ID:<000401cc1efa$f1d076d0$d5716470$@com>
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----=_NextPart_000_0003_01CC1EFA.F1D076D0"
X-Mailer: Microsoft Office Outlook 12.0
Thread-Index: AcjjWWMdM5XEvb9SQHf4U0yvc5yaCg==
Content-Language: en-us
X-Kolab-Scheduling-Message: FALSE

This is a multipart message in MIME format.
--------------- snip /end unrecoginzed spam ------------

In messages that are recognized as SPAM, I find the following:

---------------- snip - spam scanner works --------------
X-Virus-Scanned: by amavisd-new at qwer.tk
X-Spam-Flag: NO
X-Spam-Score: 3.117
X-Spam-Level: ***
X-Spam-Status: No, score=3.117 tagged_above=3 required=6.3 tests=[AWL=-4.477,
	HTML_IMAGE_ONLY_32=2.353, HTML_MESSAGE=0.001, MIME_HTML_ONLY=2.299,
	RDNS_NONE=0.1, SPOOF_COM2COM=0.001, SPOOF_COM2OTH=2.84]
---------------- /snip ----------------------------------

Any clue why the above is not present in any mail header? "X-Virus-Scanned" is always there, but the
"X-Spam" headers are often missing.

Perhaps I need to upgrade Spamassassin? E.g. via "sa-update" or the like? Or is there some switch
I have to enable?

Best Regards,
Hermann

-- 
hermann at qwer.tk
GPG key ID: 299893C7 (on keyservers)
FP: 0124 2584 8809 EF2A DBF9  4902 64B4 D16B 2998 93C7