We've been having a group of the same type of e-mails making it through spamassassin. These are the e-mails that have the "get a capable html e-mailer" line in them. I have yet to see any legitimate e-mail with that line, so I made a custom rule to score 11 points for that slogan. I have also fed hundreds of different e-mails with that line in to my bayes database, and yet I'm still seeing a lot of e-mails with that line making it through, so I fed one of the e-mails through manually and the relevant output is below. The MY_CAPABLE rule is the custom rule for these types of e-mail, it is adding the points, but a great many of these are still making it through. I know I saw other posts where people were saying spam was making it past or only every other e-mail was being checked, and I'm wondering why e-mails like these are slipping past.
Subject: ***Spam*** i just cheated on my boyfriend Date: Mon, 10 Jan 2005 23:56:36 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="Java.FFPYY.0255880571537262588" X-Priority: 3 X-MSMail-Priority: Normal Message-Id: <[EMAIL PROTECTED]> X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1437 X-Virus-Scanned: ClamAV 0.80/578/Mon Nov 8 09:26:49 2004 clamav-milter version 0.80j on xxx.xxx.xxx X-Virus-Status: Clean X-Spam-Prev-Subject: i just cheated on my boyfriend X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on c588 X-Spam-Level: ************** X-Spam-Status: Yes, score=14.8 required=4.0 tests=BAYES_60,HTML_20_30, HTML_MESSAGE,MIME_HTML_MOSTLY,MPART_ALT_DIFF,MY_CAPABLE,RCVD_BY_IP, RCVD_IN_BL_SPAMCOP_NET,RCVD_IN_NJABL_PROXY,RCVD_IN_SORBS_WEB, SARE_FREE_WEBM_ZCom03,SPF_HELO_PASS autolearn=disabled version=3.0.2 X-Spam-Report: * 0.1 RCVD_BY_IP Received by mail server with no name * 0.7 SARE_FREE_WEBM_ZCom03 Sender used free email account - may be spammer * -0.0 SPF_HELO_PASS SPF: HELO matches SPF record * 11 MY_CAPABLE BODY: Body contains spam link * 0.2 HTML_20_30 BODY: Message is 20% to 30% HTML * 0.4 BAYES_60 BODY: Bayesian spam probability is 60 to 80% * [score: 0.6354] * 1.0 MIME_HTML_MOSTLY BODY: Multipart message mostly text/html MIME * 0.0 HTML_MESSAGE BODY: HTML included in message * 0.1 MPART_ALT_DIFF BODY: HTML and text parts are different * 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net * [Blocked - see <http://www.spamcop.net/bl.shtml?24.145.177.237>] * 0.4 RCVD_IN_NJABL_PROXY RBL: NJABL: sender is an open proxy * [24.145.177.237 listed in combined.njabl.org] * 0.0 RCVD_IN_SORBS_WEB RBL: SORBS: sender is a abuseable web server * [24.145.177.237 listed in dnsbl.sorbs.net]