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标题: 怎么防御带图片的国外垃圾邮件 [打印本页]

作者: bigares    时间: 2006-9-18 09:47
标题: 怎么防御带图片的国外垃圾邮件
垃圾邮件特性
1、垃圾内容都作在gif或jpg图片中,邮件正文和题名无垃圾关键字,无法过滤,
2、不断更换发送地址,使用ip黑名单拦截无效。
3、用md 自带垃圾主件无法抵御,综合判断此类邮件的垃圾评分都在3以下。
各位md专家给个解决方法

邮件头

Return-path: <bgbmga@napleshomes.com>
X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13)
X-Spam-Level: **
X-Spam-Status: No, score=2.4 required=7.7 tests=EXTRA_MPART_TYPE,
        HTML_IMAGE_ONLY_32,HTML_MESSAGE,SARE_GIF_ATTACH autolearn=disabled
        version=3.1.0
X-Spam-Report:
        *  0.8 EXTRA_MPART_TYPE Header has extraneous Content-type:...type= entry
        *  0.8 HTML_IMAGE_ONLY_32 BODY: HTML: images with 2800-3200 bytes of words
        *  0.0 HTML_MESSAGE BODY: HTML included in message
        *  0.8 SARE_GIF_ATTACH FULL: Email has a inline gif
Authentication-Results: xxx.com
        smtp.mail=bgbmga@napleshomes.com; ip-match=fail
Received: from dsl.dynamic81214177222.ttnet.net.tr ([81.214.177.222])
        by xxx.com (xxx.com)
        (MDaemon PRO v9.0.4)
        with ESMTP id md50000116091.msg
        for <xxx@xxx.com>; Mon, 18 Sep 2006 01:03:48 +0800
Received: from [81.214.48.232] (helo=aal)
        by dsl.dynamic81214177222.ttnet.net.tr with smtp (Exim 4.43)
        id 1GP04o-0007kQ-C3; Sun, 17 Sep 2006 20:05:06 +0300
Message-ID: <000c01c6da7b$393b06f3$e830d651@aal>
From: "Hugh Peterson" <bgbmga@napleshomes.com>
To: <xxx@xxx.com>
Subject: bloodstained coeducational
Date: Sun, 17 Sep 2006 19:55:41 +0300
MIME-Version: 1.0
Content-Type: multipart/related;
        type="multipart/alternative";
        boundary="----=_NextPart_000_0008_01C6DA94.5E883E97"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.2180
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180
X-Lookup-Warning: MAIL lookup on bgbmga@napleshomes.com does not match 81.214.177.222
X-MDRcpt-To: xxx@xxx.com
X-Rcpt-To: xxx@xxx.com
X-MDRemoteIP: 81.214.177.222
X-Return-Path: bgbmga@napleshomes.com
X-MDaemon-Deliver-To: xxx@xxx.com
X-Spam-Processed: xxx.com, Mon, 18 Sep 2006 01:03:49 +0800
X-MDAV-Processed: xxx.com, Mon, 18 Sep 2006 01:03:49 +0800

1.GIF (7.74 KB, 下载次数: 3)

垃圾图片

垃圾图片

作者: asionliang    时间: 2006-9-18 10:27
偶想不到。让U-MAIL指点下
作者: U-Mail    时间: 2006-9-19 21:58
现在过滤垃圾邮件用内容过滤的方法效果越来越差,用行为识别比较好,用蓓蕾丝也可以。
作者: 提款机    时间: 2006-9-20 08:28
原帖由 U-Mail 于 2006-9-19 21:58 发表
现在过滤垃圾邮件用内容过滤的方法效果越来越差,用行为识别比较好,用蓓蕾丝也可以。


蓓蕾丝?感觉象TT的名字。哈哈
作者: jimmywang    时间: 2006-9-25 13:17
蓓蕾丝和Mdaemon怎么整合呢?




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