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From 岩崎洋佑 <iwas...@seraku.co.jp>
Subject False positive?
Date Fri, 27 Sep 2013 01:47:26 GMT
Hello,

Some e-mails sent from my account are recognized as spam mails.
Could anyone tell me the cause?

Below is the header information of one of those spam mails.

********************
Return-Path: <xxx@example.co.jp>
X-Spam-Flag: YES
X-Spam-Checker-Version: SpamAssassin 3.2.4 (2008-01-01) on
	example.co.jp
X-Spam-Level: ****************
X-Spam-Status: Yes, score=17.0 required=13.0
tests=AISHOU,CONTENT_TYPE_PRESENT,
	DAIHYOU,DEETO,DIRECTUNKNOWN,DIRECTVECTANTDYN,DYN_AISHOU,DYN_DAIHYOU,DYN_DEETO,
	DYN_FUAN,DYN_ONEGAI,DYN_RENRAKU,DYN_SUPPORT,FUAN,ISO2022JP_BODY,MIMEQENC,
	NO_RECEIVED,OBSCURED_EMAIL,ONEGAI,ONLY1HOPDIRECT,QENCPTR1,QENCPTR2,RDNS_NONE,
	RENRAKU,SUPPORT,THREAD_INDEX,X_CHINESE_RELAY autolearn=spam version=3.2.4
X-Spam-Report:
	* -0.1 CONTENT_TYPE_PRESENT exists:Content-Type
	*  1.0 ONLY1HOPDIRECT ONLY1HOPDIRECT
	*  1.5 DIRECTVECTANTDYN directly received spam from vectant.ne.jp
	*  0.3 DIRECTUNKNOWN directly received spam from suspicious dynamic IP
	*  0.3 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig==
	*  0.1 OBSCURED_EMAIL BODY: Message seems to contain rot13ed address
	*  0.1 X_CHINESE_RELAY RBL: Received via a relay in China
	*      [202.215.74.215 listed in cn.rbl.cluecentral.net]
	*  0.2 RENRAKU RAW: renraku
	*  0.1 DEETO RAW: deeto
	*  0.2 AISHOU RAW: aishou
	*  0.2 DAIHYOU RAW: daihyou
	* -0.1 ISO2022JP_BODY RAW: ISO-2022-JP message
	*  0.2 FUAN RAW: fuan
	*  0.1 SUPPORT RAW: sapo-to
	*  0.2 ONEGAI RAW: onegai
	*  0.2 MIMEQENC FULL: Quoted-Printable mime definition
	*  0.2 QENCPTR2 FULL: Quoted-Printable mime pattern
	*  0.2 QENCPTR1 FULL: Quoted-Printable mime pattern
	*  0.1 RDNS_NONE Delivered to trusted network by a host with no rDNS
	* -0.0 NO_RECEIVED Informational: message has no Received headers
	*  2.0 DYN_ONEGAI DYN_ONEGAI
	*  2.0 DYN_DAIHYOU DYN_DAIHYOU
	*  2.0 DYN_SUPPORT DYN_SUPPORT
	*  1.0 DYN_DEETO DYN_DEETO
	*  2.0 DYN_RENRAKU DYN_RENRAKU
	*  1.0 DYN_AISHOU DYN_AISHOU
	*  2.0 DYN_FUAN DYN_FUAN
X-Original-To: xxx1@example.co.jp
Delivered-To: xxx1@example.co.jp
From: =?iso-2022-jp?B?GyRCOWI6ZRsoQiAbJEJBRzBsTzobKEI=?=
	<xxx@example.co.jp>
To: =?iso-2022-jp?B?GyRCODshIUQ+OSgbKEI=?= <xxx1@example.co.jp>
Subject: ***SPAM*** =?iso-2022-jp?B?UkU6IBskQjg9PnUkTkpzOXAbKEI=?=
Thread-Topic: =?iso-2022-jp?B?GyRCOD0+dSROSnM5cBsoQg==?=
Thread-Index:
Ac6ukfV5fR3KhI+0TAqZtmZa+kTFyQAJu+MAAAAV78AAAV0bAAG7KlBgAAEKaQAABipeMAAMvYcAAOpnXYA=
Date: Wed, 25 Sep 2013 04:27:44 +0000
Message-ID: <xxx>
References: <xxx>
In-Reply-To: <003701ceb5fb$240fd840$6c2f88c0$@example.co.jp>
Accept-Language: ja-JP, en-US
Content-Language: ja-JP
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator:
x-originating-ip: [202.215.74.215]
x-forefront-prvs: 098076C36C
x-forefront-antispam-report:
SFV:NSPM;SFS:(189002)(199002)(13464003)(51704005)(377454003)(76796001)(76576001)(76786001)(66066001)(74502001)(74662001)(74876001)(19300405004)(19273905006)(81342001)(80022001)(56816003)(83072001)(56776001)(77096001)(59766001)(81542001)(19580395003)(77982001)(54356001)(76482001)(74366001)(54316002)(83322001)(19580405001)(53806001)(63696002)(74482001)(31966008)(69226001)(47446002)(74316001)(79102001)(33646001)(4396001)(47736001)(47976001)(49866001)(50986001)(80976001)(81686001)(46102001)(65816001)(51856001)(15202345003)(74706001)(15975445006)(81816001)(24736002)(562404015)(579004)(559001)(569005);DIR:OUT;SFP:;SCL:1;SRVR:HKNPR03MB162;H:HKNPR03MB164.apcprd03.prod.outlook.com;CLIP:202.215.74.215;FPR:;RD:InfoNoRecords;MX:3;A:1;LANG:ja;
Content-Type: multipart/mixed;
	boundary="_002_aa0baeb366ae4afcba76ab64e6268ce2HKNPR03MB164apcprd03pro_"
MIME-Version: 1.0
X-OriginatorOrg: example1.co.jp
X-Spam-Prev-Subject: =?iso-2022-jp?B?UkU6IBskQjg9PnUkTkpzOXAbKEI=?=

********************

Regards.

Iwasaki

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