为何同一地址发过来的邮件会受不同对待

williamwu

From: =?gb2312?B?y+/B1tDH?= <POSTMASTER@quickmail.51job.com><br>
Subject: [***SPAM*** Score/Req: 13.83/05.00] =?gb2312?B?KDUxam9iLmNvbSnL78HW0MfJ6sfrufO5q8u+16LL3Lmk0tW5pLPMyqbWsM67?=<br>
To: judy.wang@oechsler.com<br>
Reply-To: xin-0@126.com<br>
Message-id: <20060522043146.27503.qmail@www24.51job.com><br>
MIME-version: 1.0<br>
Content-type: multipart/mixed; boundary="Boundary_(ID_tI0Ek2EmoSgy5hpbM1SmvQ)";<br>charset='gb2312'<br>
X-Lookup-Warning: MAIL lookup on POSTMASTER@quickmail.51job.com does not match 62.153.59.138<br>
X-MDRcpt-To: judy.wang@oechsler.com.cn<br>
X-Rcpt-To: judy.wang@oechsler.com.cn<br>
X-MDRemoteIP: 62.153.59.138<br>
X-Return-Path: POSTMASTER@quickmail.51job.com<br>
X-MDaemon-Deliver-To: judy.wang@oechsler.com.cn<br>
X-Spam-Flag: YES<br>
X-Spam-Checker-Version: SpamAssassin 2.64 (2004-01-11)<br>
X-Spam-Report: <br>
* 12 BAYES_90 BODY: Bayesian spam probability is 90 to 99%<br>
* [score: 0.9861]<br>
* 0.1 HTML_50_60 BODY: Message is 50% to 60% HTML<br>
* 0.3 MIME_HTML_ONLY BODY: Message only has text/html MIME parts<br>
* 0.1 HTML_MESSAGE BODY: HTML included in message<br>
* 1.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding<br>
X-Spam-Status: Yes, hits=13.8 required=5.0 tests=BAYES_90,HTML_50_60,<br>
HTML_MESSAGE,MIME_BASE64_TEXT,MIME_HTML_ONLY autolearn=no version=2.64<br>
X-Spam-Level: *************<br>
X-Spam-Processed: mail.oechsler.com.cn, Mon, 22 May 2006 12:31:10 +0800<br>
X-MDAV-Processed: mail.oechsler.com.cn, Mon, 22 May 2006 12:31:10 +0800<br>
<br>
<font color="red">Mon 2006-05-22 08:30:02: Content Filter processing d:\mdaemon\localq\md50000059699.msg...<br>
Mon 2006-05-22 08:30:02: > Message return-path: POSTMASTER@quickmail.51job.com<br>
Mon 2006-05-22 08:30:02: > Message from: POSTMASTER@quickmail.51job.com<br>
Mon 2006-05-22 08:30:02: > Message to: judy.wang@oechsler.com.cn<br>
Mon 2006-05-22 08:30:02: > Message subject: (51job.com)沈俊岭申请贵公司销售经理职位<br>
Mon 2006-05-22 08:30:02: > Message ID: <20060522003028.16273.qmail@www8.51job.com><br>
Mon 2006-05-22 08:30:02: Start Content Filter results<br>
Mon 2006-05-22 08:30:02: * Matched 0 of 3 active rules<br>
Mon 2006-05-22 08:30:02: End of Content Filter results<br>
Mon 2006-05-22 08:30:02: ----------</font><br>
<br>
为什么同一个地址发过来的email, 有的被判别为SPAM邮件，有的又可以通过？

U-Mail

好像是MD过滤规则在过滤