autolearn=ham. Why? Bayes was 50. ???

[kazooless]

I am pasting the source of an e-mail that was obviously spam. I have spamassassin configured the way DWTractor recommends with a couple of the scores with an even higher number (blacklists and bayes 50 & 60). I don't understand why this one would be autolearn=ham though. I did a global replace of my domain with the generic term "domain."


Return-Path: Mary@FTM-Marketing.com
Received: from mail.domain.com (LHLO mail.domain.com) (192.168.0.10) by
mail.domain.com with LMTP; Sun, 10 Jul 2011 01:59:16 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1])
by mail.domain.com (Postfix) with ESMTP id B495F9120EF
for <jeff@domain.com>; Sun, 10 Jul 2011 01:59:16 -0700 (PDT)
X-Virus-Scanned: amavisd-new at domain.com
X-Spam-Flag: NO
X-Spam-Score: 0.99
X-Spam-Level:
X-Spam-Status: No, score=0.99 tagged_above=-10 required=3 tests=[BAYES_50=1,
HTML_MESSAGE=0.001, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01]
autolearn=ham
Received: from mail.domain.com ([127.0.0.1])
by localhost (mail.domain.com [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id XKRFyk8nbOKu for <jeff@domain.com>;
Sun, 10 Jul 2011 01:58:58 -0700 (PDT)
Received: from Exchange.FTM-Marketing.com (exchange.ftm-marketing.com [72.215.207.35])
by mail.domain.com (Postfix) with ESMTPS id 9105A9120E1
for <jeff@domain.com>; Sun, 10 Jul 2011 01:58:58 -0700 (PDT)
Received: from Pickup by Exchange.FTM-Marketing.com with Microsoft SMTP Server
id 14.0.639.21; Sun, 10 Jul 2011 09:11:03 +0000
X-Sender: mary@ftm-marketing.com
X-Receiver: jeff@domain.com
X-AwardCode: 10-XDPBHM
MIME-Version: 1.0
From: <mary@ftm-marketing.com>
To: <jeff@domain.com>
Date: Sun, 10 Jul 2011 02:11:03 -0700
Subject: Final Notice: Jeff domain recognized as Best of Business in EL CAJON 2010
Content-Type: multipart/alternative;
boundary="--boundary_83604_7cc10c5b-1970-45de-91ad-033b5fd2f45a"
Message-ID: <fcdd52d3-a000-447a-8724-6de9f48bbc92@EXCHANGE.FTM-Marketing.com>

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Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64

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...

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