Ways to trick the lexer

Andreas Pardeike andreas at pardeike.net
Sat Jun 9 11:00:11 CEST 2007


On 9 jun 2007, at 01.24, David Relson wrote:

> The cunning trick tends to be a one-time success.  After you train  
> with
> such a message, the next time "SEIX8UALLY" appears in a Subject  
> line it
> is known to bogofilter as spam.  I think of it as being a red flag
> saying "look at me, I'm spam".

My point was that I get spam that substitutes most key words with
words that contain random character replacements. If I look at the
last say 50-100 spams of category "sexually explicit" I can see that
there isn't a single repetition of SEIX8UALLY.

I compared the messages and very very little is common in them. They  
have

- different subjects (except that they all look *similar*
- different IP's and subnets
- the non common header lines are different too
- the payload is different in every word
- they contain truly random text (about 2 lines) at the end of
   the message

I doubt that training has such an effect. It started about a month ago
and grew to such extend that I doubted the state of my db. So I erased
the db and started over freshly a week ago. Since then, I have not seen
any improvement.

Here are two examples, freshly from my INBOX this morning (followed by
the output of bogofilter -vv / -vvv):

------------------------------------------------------------------------ 
-------------
Received: from MARIELAJUAN ([24.138.201.172])
	by mail.roundline.net (8.13.4/8.13.4) with ESMTP id l58MBNvI002718
	for <info at loops.twosailors.net>; Sat, 9 Jun 2007 00:11:25 +0200
Received: from babyfeel (cardsfunny.sadlyraysays.com [135.121.172.180])
         by mail.mail.com (Postfix) with ESMTP id placepaid
         for <info at loops.twosailors.net>; Fri, 08 Jun 2007 18:59:56  
+0100
Received: by wr-out-0506.mail.com with SMTP id enmby3xxixw4
         for <info at loops.twosailors.net>; Fri, 08 Jun 2007 18:59:56  
+0100 (PDT)
DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed;
         d=mail.com; s=beta;
         h=domainkey-signature:received:received:message- 
id:date:from:sender:to:subject:mime-version:content-type:x-google- 
sender-auth;
         b=qlfmJ8X+29HjSTGbCB/ 
gvpnlSzmGMKMpZh1m1pHELznc3ny5WLQXuPuAnaJD9j/ 
9pbOxrN5s5y4wVCEGkuefBqQdhar0fkJB6O8/t3H1 
+cT8m55lsSDWMDB8Yd4n4LQaFcpNmLJZsUKsUE5iWy6QoAJoKUuoeWiBuForL02X8wA=
DomainKey-Signature: a=rsa-sha1; c=nofws;
         d=mail.com; s=beta;
         h=received:message-id:date:from:sender:to:subject:mime- 
version:content-type:x-google-sender-auth;
         b=M/4GxOZ1RMaQ6GoZ/ 
g4UhFEcvOkM4sOvDCdDSsjBkd49JsiGqUPc0776fU0JRaLhlVnzbgN0aEiO0iizbF6/ 
wM3mbPcPwLcYw0YwRuuVNIoSzUDE2chawEIJdrdAAWTgOhaZchz5BQoVSBie5PCX/ 
VQVNRyYP/wBFQ2C+fVqwSw=
Received: by 17.57.43.36 with SMTP id nqjjb8.xiroe6;
         Fri, 08 Jun 2007 18:59:56 +0100 (PDT)
Received: by 15.57.48.34 with HTTP; Fri, 08 Jun 2007 18:59:56 +0100  
(PDT)
Message-ID: <00005ab58225$bb377e00$acc98a18 at MarielaJuan>
Date: Fri, 08 Jun 2007 18:59:56 +0100
From: Adelaide Alanna <harmevenclock at mail.com>
Sender: roadearssit at mail.com
To: info at loops.twosailors.net
Subject: SEIX2UALLY-E4XPLICITI: steps hiss four cut
MIME-Version: 1.0
Content-Type: text/plain;
         charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Google-Sender-Auth: ipvuj4
X-Roundline-MailScanner: Found to be clean
X-Bogosity: No, tests=bogofilter, spamicity=0.684388, version=1.1.5
Status: O
X-UID: 20354
Content-Length: 328
X-Keywords:

Hello,
Updated portal with links to 120 p9rn sites:
http://www.geocities.com/Emmelin7qo/index.html? 
xwrs=por_silvc_g&c=alongpitch

--------------------------
arms knock glass wow back sharp
hedge rules bookv wears.
busy five, drag sold soft want
Dain't want:
http://www.geocities.com/Emmelin7qo/index.html?ir=nayworse
------------------------------------------------------------------------ 
-------------
Received: from CPE-60-226-126-81.qld.bigpond.net.au  
(CPE-60-226-126-81.qld.bigpond.net.au [60.226.126.81])
	by mail.roundline.net (8.13.4/8.13.4) with ESMTP id l593Satk011059
	for <info at loops.twosailors.net>; Sat, 9 Jun 2007 05:28:40 +0200
Received: from facehit (findknows.sleptforkifvif.com [132.176.172.131])
         by mail.mail.com (Postfix) with ESMTP id immayor
         for <info at loops.twosailors.net>; Sat, 09 Jun 2007 14:17:05  
+0100
Received: by wr-out-0506.mail.com with SMTP id ciskg1petel2
         for <info at loops.twosailors.net>; Sat, 09 Jun 2007 14:17:05  
+0100 (PDT)
DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed;
         d=mail.com; s=beta;
         h=domainkey-signature:received:received:message- 
id:date:from:sender:to:subject:mime-version:content-type:x-google- 
sender-auth;
         b=qlfmJ8X+29HjSTGbCB/ 
gvpnlSzmGMKMpZh1m1pHELznc3ny5WLQXuPuAnaJD9j/ 
9pbOxrN5s5y4wVCEGkuefBqQdhar0fkJB6O8/t3H1 
+cT8m55lsSDWMDB8Yd4n4LQaFcpNmLJZsUKsUE5iWy6QoAJoKUuoeWiBuForL02X8wA=
DomainKey-Signature: a=rsa-sha1; c=nofws;
         d=mail.com; s=beta;
         h=received:message-id:date:from:sender:to:subject:mime- 
version:content-type:x-google-sender-auth;
         b=M/4GxOZ1RMaQ6GoZ/ 
g4UhFEcvOkM4sOvDCdDSsjBkd49JsiGqUPc0776fU0JRaLhlVnzbgN0aEiO0iizbF6/ 
wM3mbPcPwLcYw0YwRuuVNIoSzUDE2chawEIJdrdAAWTgOhaZchz5BQoVSBie5PCX/ 
VQVNRyYP/wBFQ2C+fVqwSw=
Received: by 11.55.48.38 with SMTP id qlxqo2.rerjv2;
         Sat, 09 Jun 2007 14:17:05 +0100 (PDT)
Received: by 15.50.46.32 with HTTP; Sat, 09 Jun 2007 14:17:05 +0100  
(PDT)
Message-ID: <000053d215c2$09627680$517ee23c at merlin>
Date: Sat, 09 Jun 2007 14:17:05 +0100
From: Daisy Liana <pluckgavesake at mail.com>
Sender: sizesquietbent at mail.com
To: info at loops.twosailors.net
Subject: SEIX8UALLY-E8XPLICITI: in watch lets good
MIME-Version: 1.0
Content-Type: text/plain;
         charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Google-Sender-Auth: dvrjg0
X-Roundline-MailScanner: Found to be clean
X-Bogosity: No, tests=bogofilter, spamicity=0.511361, version=1.1.5
Status: O
X-UID: 20368
Content-Length: 324
X-Keywords:

Hello,
Updated portal with links to 120 p9rn sites:
http://www.geocities.com/EliottCaunk/index.html? 
nwrs=por_silvc_g&c=axesswim
--------------------------
bad locks ear ada lest sunk
hurt if whose thou.
leave tweet, bring sleep dukes told
Dain't want:
http://www.geocities.com/EliottCaunk/index.html?yr=whotoads
------------------------------------------------------------------------ 
-------------


And here is the output of bogofilter -vv and -vvv for both messages

# bogofilter -vv < /tmp/spam1.txt
X-Bogosity: No, tests=bogofilter, spamicity=0.483981, version=1.1.5
    int  cnt   prob  spamicity histogram
   0.00   28 0.019085 0.010994 ############################
   0.10   12 0.107619 0.035360 ############
   0.20    0 0.000000 0.035360
   0.30    0 0.000000 0.035360
   0.40    0 0.000000 0.035360
   0.50    0 0.000000 0.035360
   0.60    0 0.000000 0.035360
   0.70    0 0.000000 0.035360
   0.80    8 0.890280 0.242869 ########
   0.90    7 0.962528 0.434282 #######

# bogofilter -vvv < /tmp/spam1.txt
X-Bogosity: No, tests=bogofilter, spamicity=0.483981, version=1.1.5
                                         n    pgood     pbad       
fw     U
   "EliottCaunk"                         1  0.000766  0.000000   
0.009094 +
   "axesswim"                            1  0.000766  0.000000   
0.009094 +
   "dukes"                               1  0.000766  0.000000   
0.009094 +
   "from:Liana"                          1  0.000766  0.000000   
0.009094 +
   "from:pluckgavesake"                  1  0.000766  0.000000   
0.009094 +
   "head:dvrjg0"                         1  0.000766  0.000000   
0.009094 +
   "head:sizesquietbent"                 1  0.000766  0.000000   
0.009094 +
   "ip:11.55"                            1  0.000766  0.000000   
0.009094 +
   "ip:11.55.48"                         1  0.000766  0.000000   
0.009094 +
   "ip:11.55.48.38"                      1  0.000766  0.000000   
0.009094 +
   "ip:132.176"                          1  0.000766  0.000000   
0.009094 +
   "ip:132.176.172"                      1  0.000766  0.000000   
0.009094 +
   "ip:132.176.172.131"                  1  0.000766  0.000000   
0.009094 +
   "ip:15.50"                            1  0.000766  0.000000   
0.009094 +
   "ip:15.50.46"                         1  0.000766  0.000000   
0.009094 +
   "ip:15.50.46.32"                      1  0.000766  0.000000   
0.009094 +
   "ip:60.226"                           1  0.000766  0.000000   
0.009094 +
   "ip:60.226.126"                       1  0.000766  0.000000   
0.009094 +
   "ip:60.226.126.81"                    1  0.000766  0.000000   
0.009094 +
   "nwrs"                                1  0.000766  0.000000   
0.009094 +
   "rcvd:facehit"                        1  0.000766  0.000000   
0.009094 +
   "subj:lets"                           1  0.000766  0.000000   
0.009094 +
   "whotoads"                            1  0.000766  0.000000   
0.009094 +
   "head:subject"                      952  0.651608  0.025371   
0.037485 +
   "head:Sender"                       796  0.518377  0.029892   
0.054531 +
   "rcvd:PDT"                          730  0.469372  0.029390   
0.058936 +
   "head:from"                         554  0.339204  0.027882   
0.075970 +
   "rcvd:HTTP"                         409  0.235069  0.025622   
0.098302 +
   "ada"                                 4  0.002297  0.000251   
0.100441 +
   "head:content-type"                 394  0.224349  0.025371   
0.101615 +
   "head:mime-version"                 394  0.224349  0.025371   
0.101615 +
   "head:message-id"                   394  0.222818  0.025873   
0.104055 +
   "head:beta"                         381  0.214395  0.025371   
0.105833 +
   "head:domainkey-signature"          381  0.214395  0.025371   
0.105833 +
   "head:received"                     381  0.214395  0.025371   
0.105833 +
   "head:DKIM-Signature"               385  0.215161  0.026124   
0.108290 +
   "head:relaxed"                      385  0.215161  0.026124   
0.108290 +
   "ip:11"                              28  0.015314  0.002010   
0.116258 +
   "head:date"                         405  0.221286  0.029138   
0.116374 +
   "head:sender"                       372  0.202910  0.026878   
0.116987 +
   "rcvd:Postfix"                      711  0.363706  0.059282   
0.140159 -
   "head:nofws"                        596  0.242726  0.070083   
0.224053 -
   "head:DomainKey-Signature"          601  0.243492  0.071088   
0.225986 -
   "head:rsa-sha1"                     588  0.236600  0.070083   
0.228528 -
   "rcvd:ESMTP"                       3006  0.973201  0.435820   
0.309308 -
   "links"                              92  0.029096  0.013564   
0.317998 -
   "head:plain"                       2306  0.707504  0.347149   
0.329161 -
   "head:bit"                         2563  0.706738  0.411957   
0.368249 -
   "hurt"                               23  0.006126  0.003768   
0.380954 -
   "head:Content-Transfer-Encoding"    2684  0.706738  0.442351   
0.384959 -
   "head:text"                        2877  0.740429  0.479779   
0.393195 -
   "head:charset"                     2697  0.687596  0.451897   
0.396578 -
   "from:Daisy"                          3  0.000766  0.000502   
0.396908 -
   "lest"                                3  0.000766  0.000502   
0.396908 -
   "subj:SEIX8UALLY-E8XPLICITI"          3  0.000766  0.000502   
0.396908 -
   "tweet"                               3  0.000766  0.000502   
0.396908 -
   "whose"                              49  0.011485  0.008541   
0.426508 -
   "want"                              789  0.181470  0.138659   
0.433136 -
   "with"                             2342  0.496172  0.425521   
0.461674 -
   "ip:15"                              11  0.002297  0.002010   
0.466702 -
   "sleep"                              19  0.003828  0.003517   
0.478815 -
   "http"                             4063  0.815467  0.753077   
0.480112 -
   "rcvd:Jun"                         5287  1.057427  0.981161   
0.481294 -
   "rcvd:for"                         4876  0.957887  0.910575   
0.487340 -
   "bring"                              67  0.013017  0.012560   
0.491070 -
   "Hello"                             306  0.058959  0.057523   
0.493840 -
   "head:X-Roundline-MailScanner"     5287  1.003063  0.998995   
0.498984 -
   "head:Date"                        5270  0.998469  0.996232   
0.499439 -
   "head:Found"                       5287  1.001531  0.999498   
0.499492 -
   "rcvd:mail.roundline.net"          5287  1.001531  0.999498   
0.499492 -
   "head:clean"                       5285  1.000000  0.999498   
0.499874 -
   "rcvd:from"                        5287  1.000000  1.000000   
0.500000 -
   "rcvd:with"                        5287  1.000000  1.000000   
0.500000 -
   "head:Content-Type"                5101  0.956355  0.967596   
0.502921 -
   "rcvd:SMTP"                        3592  0.624809  0.697312   
0.527419 -
   "ip:132"                              5  0.000766  0.001005   
0.567349 -
   "thou"                                5  0.000766  0.001005   
0.567349 -
   "locks"                              10  0.001531  0.002010   
0.567433 -
   "head:Message-ID"                  4238  0.611792  0.863853   
0.585407 -
   "Updated"                            38  0.005360  0.007787   
0.592274 -
   "head:MIME-Version"                4253  0.594946  0.873147   
0.594749 -
   "head:X-Google-Sender-Auth"         119  0.015314  0.024868   
0.618871 -
   "Dain't"                             26  0.003063  0.005526   
0.643323 -
   "p9rn"                               26  0.003063  0.005526   
0.643323 -
   "bad"                               137  0.016080  0.029138   
0.644382 -
   "rcvd:Sat"                          317  0.036753  0.067571   
0.647693 -
   "index.html"                        161  0.018377  0.034413   
0.651877 -
   "portal"                             41  0.004594  0.008792   
0.656731 -
   "to:info"                           206  0.022971  0.044210   
0.658062 -
   "subj:watch"                          7  0.000766  0.001507   
0.662749 -
   "sites"                             191  0.020674  0.041196   
0.665834 -
   "leave"                             103  0.009954  0.022607   
0.694269 -
   "head:iso-8859-1"                   703  0.065084  0.155237   
0.704590 -
   "sunk"                                9  0.000766  0.002010   
0.723694 -
   "head:x-google-sender-auth"         111  0.009188  0.024868   
0.730169 -
   "head:mail.com"                     138  0.009954  0.031399   
0.759261 -
   "subj:good"                          35  0.002297  0.008038   
0.777612 -
   "told"                              245  0.016080  0.056267   
0.777724 -
   "rcvd:mail.mail.com"                 49  0.003063  0.011304   
0.786713 -
   "rcvd:info"                         210  0.013017  0.048480   
0.788311 -
   "rcvd:loops.twosailors.net"          37  0.001531  0.008792   
0.851495 -
   "to:loops.twosailors.net"            37  0.001531  0.008792   
0.851495 -
   "ear"                                19  0.000766  0.004521   
0.854865 -
   "por_silvc_g"                        78  0.003063  0.018588   
0.858462 -
   "head:GxOZ1RMaQ6GoZ"                103  0.003063  0.024868   
0.890280 +
   "head:HjSTGbCB"                     103  0.003063  0.024868   
0.890280 +
   "head:VQVNRyYP"                     103  0.003063  0.024868   
0.890280 +
   "head:fVqwSw"                       103  0.003063  0.024868   
0.890280 +
   "head:qlfmJ8X"                      103  0.003063  0.024868   
0.890280 +
   "head:t3H1"                         103  0.003063  0.024868   
0.890280 +
   "head:wBFQ2C"                       103  0.003063  0.024868   
0.890280 +
   "rcvd:wr-out-0506.mail.com"         103  0.003063  0.024868   
0.890280 +
   "ip:60"                              62  0.001531  0.015072   
0.907653 +
   "from:mail.com"                     133  0.003063  0.032404   
0.913591 +
   "www.geocities.com"                 138  0.003063  0.033660   
0.916546 +
   "head:X-UID"                        343  0.000000  0.086159   
0.999975 +
   "head:Status"                       357  0.000000  0.089676   
0.999976 +
   "head:Content-Length"               373  0.000000  0.093695   
0.999977 +
   "head:X-Keywords"                   373  0.000000  0.093695   
0.999977 +
   N_P_Q_S_s_x_md                       55  0.032038  0.000000  0.483981
                                            0.017800  0.520000  0.375000

# bogofilter -vv < /tmp/spam2.txt
X-Bogosity: No, tests=bogofilter, spamicity=0.498241, version=1.1.5
    int  cnt   prob  spamicity histogram
   0.00   26 0.021502 0.012130 ##########################
   0.10   10 0.107448 0.033402 ##########
   0.20    0 0.000000 0.033402
   0.30    0 0.000000 0.033402
   0.40    0 0.000000 0.033402
   0.50    0 0.000000 0.033402
   0.60    0 0.000000 0.033402
   0.70    0 0.000000 0.033402
   0.80    8 0.890256 0.249729 ########
   0.90    9 0.955717 0.450718 #########

# bogofilter -vvv < /tmp/spam2.txt
X-Bogosity: No, tests=bogofilter, spamicity=0.498241, version=1.1.5
                                         n    pgood     pbad       
fw     U
   "Emmelin7qo"                          1  0.000766  0.000000   
0.009094 +
   "alongpitch"                          1  0.000766  0.000000   
0.009094 +
   "from:Adelaide"                       1  0.000766  0.000000   
0.009094 +
   "from:harmevenclock"                  1  0.000766  0.000000   
0.009094 +
   "head:ipvuj4"                         1  0.000766  0.000000   
0.009094 +
   "head:roadearssit"                    1  0.000766  0.000000   
0.009094 +
   "ip:135.121"                          1  0.000766  0.000000   
0.009094 +
   "ip:135.121.172"                      1  0.000766  0.000000   
0.009094 +
   "ip:135.121.172.180"                  1  0.000766  0.000000   
0.009094 +
   "ip:15.57.48"                         1  0.000766  0.000000   
0.009094 +
   "ip:15.57.48.34"                      1  0.000766  0.000000   
0.009094 +
   "ip:17.57.43"                         1  0.000766  0.000000   
0.009094 +
   "ip:17.57.43.36"                      1  0.000766  0.000000   
0.009094 +
   "ip:24.138.201"                       1  0.000766  0.000000   
0.009094 +
   "ip:24.138.201.172"                   1  0.000766  0.000000   
0.009094 +
   "nayworse"                            1  0.000766  0.000000   
0.009094 +
   "rcvd:MARIELAJUAN"                    1  0.000766  0.000000   
0.009094 +
   "rcvd:babyfeel"                       1  0.000766  0.000000   
0.009094 +
   "subj:SEIX2UALLY-E4XPLICITI"          1  0.000766  0.000000   
0.009094 +
   "subj:hiss"                           1  0.000766  0.000000   
0.009094 +
   "head:subject"                      952  0.651608  0.025364   
0.037476 +
   "ip:17"                             363  0.238132  0.013059   
0.052010 +
   "head:Sender"                       796  0.518377  0.029884   
0.054518 +
   "rcvd:PDT"                          730  0.469372  0.029382   
0.058922 +
   "head:from"                         554  0.339204  0.027875   
0.075953 +
   "rcvd:HTTP"                         409  0.235069  0.025615   
0.098280 +
   "head:content-type"                 394  0.224349  0.025364   
0.101592 +
   "head:mime-version"                 394  0.224349  0.025364   
0.101592 +
   "head:message-id"                   394  0.222818  0.025866   
0.104032 +
   "head:beta"                         381  0.214395  0.025364   
0.105809 +
   "head:domainkey-signature"          381  0.214395  0.025364   
0.105809 +
   "head:received"                     381  0.214395  0.025364   
0.105809 +
   "head:DKIM-Signature"               385  0.215161  0.026118   
0.108266 +
   "head:relaxed"                      385  0.215161  0.026118   
0.108266 +
   "head:date"                         405  0.221286  0.029131   
0.116348 +
   "head:sender"                       372  0.202910  0.026871   
0.116961 +
   "rcvd:Postfix"                      711  0.363706  0.059267   
0.140129 -
   "xwrs"                                3  0.001531  0.000251   
0.143121 -
   "drag"                               10  0.004594  0.001005   
0.180025 -
   "wow"                                 7  0.003063  0.000753   
0.198238 -
   "head:nofws"                        596  0.242726  0.070065   
0.224009 -
   "head:DomainKey-Signature"          601  0.243492  0.071070   
0.225942 -
   "head:rsa-sha1"                     588  0.236600  0.070065   
0.228483 -
   "bookv"                               2  0.000766  0.000251   
0.249383 -
   "from:Alanna"                         2  0.000766  0.000251   
0.249383 -
   "ip:15.57"                            2  0.000766  0.000251   
0.249383 -
   "ip:17.57"                            2  0.000766  0.000251   
0.249383 -
   "ip:24.138"                           2  0.000766  0.000251   
0.249383 -
   "subj:cut"                            2  0.000766  0.000251   
0.249383 -
   "subj:four"                           2  0.000766  0.000251   
0.249383 -
   "rules"                              28  0.009954  0.003767   
0.274695 -
   "rcvd:ESMTP"                       3007  0.973201  0.435962   
0.309378 -
   "links"                              92  0.029096  0.013561   
0.317944 -
   "head:plain"                       2306  0.707504  0.347062   
0.329105 -
   "wears"                               5  0.001531  0.000753   
0.330417 -
   "head:bit"                         2563  0.706738  0.411853   
0.368190 -
   "head:Content-Transfer-Encoding"    2684  0.706738  0.442240   
0.384899 -
   "head:text"                        2877  0.740429  0.479658   
0.393135 -
   "head:charset"                     2697  0.687596  0.451783   
0.396518 -
   "want"                              789  0.181470  0.138624   
0.433074 -
   "with"                             2342  0.496172  0.425414   
0.461612 -
   "ip:15"                              11  0.002297  0.002009   
0.466640 -
   "rcvd:Fri"                         1013  0.206738  0.186590   
0.474388 -
   "http"                             4063  0.815467  0.752888   
0.480050 -
   "rcvd:Jun"                         5288  1.057427  0.981165   
0.481296 -
   "rcvd:for"                         4877  0.957887  0.910598   
0.487346 -
   "Hello"                             306  0.058959  0.057509   
0.493777 -
   "head:X-Roundline-MailScanner"     5288  1.003063  0.998995   
0.498984 -
   "head:Date"                        5271  0.998469  0.996233   
0.499440 -
   "head:Found"                       5288  1.001531  0.999498   
0.499492 -
   "rcvd:mail.roundline.net"          5288  1.001531  0.999498   
0.499492 -
   "head:clean"                       5286  1.000000  0.999498   
0.499874 -
   "rcvd:from"                        5288  1.000000  1.000000   
0.500000 -
   "rcvd:with"                        5288  1.000000  1.000000   
0.500000 -
   "head:Content-Type"                5102  0.956355  0.967604   
0.502923 -
   "rcvd:SMTP"                        3592  0.624809  0.697137   
0.527357 -
   "back"                              408  0.065084  0.081115   
0.554824 -
   "hedge"                               5  0.000766  0.001005   
0.567288 -
   "ip:135"                              5  0.000766  0.001005   
0.567288 -
   "subj:steps"                          5  0.000766  0.001005   
0.567288 -
   "knock"                              10  0.001531  0.002009   
0.567372 -
   "ip:24"                             135  0.019908  0.027373   
0.578935 -
   "head:Message-ID"                  4239  0.611792  0.863887   
0.585417 -
   "Updated"                            38  0.005360  0.007785   
0.592213 -
   "head:MIME-Version"                4254  0.594946  0.873179   
0.594758 -
   "head:X-Google-Sender-Auth"         119  0.015314  0.024862   
0.618812 -
   "Dain't"                             26  0.003063  0.005525   
0.643265 -
   "p9rn"                               26  0.003063  0.005525   
0.643265 -
   "rcvd:Sat"                          318  0.036753  0.067805   
0.648482 -
   "index.html"                        161  0.018377  0.034405   
0.651820 -
   "portal"                             41  0.004594  0.008790   
0.656675 -
   "to:info"                           206  0.022971  0.044199   
0.658005 -
   "sites"                             191  0.020674  0.041185   
0.665779 -
   "head:iso-8859-1"                   703  0.065084  0.155198   
0.704537 -
   "five"                               87  0.007657  0.019337   
0.716305 -
   "busy"                               61  0.005360  0.013561   
0.716664 -
   "head:x-google-sender-auth"         111  0.009188  0.024862   
0.730119 -
   "head:mail.com"                     138  0.009954  0.031391   
0.759215 -
   "rcvd:mail.mail.com"                 49  0.003063  0.011301   
0.786671 -
   "rcvd:info"                         210  0.013017  0.048468   
0.788269 -
   "glass"                              35  0.001531  0.008287   
0.843868 -
   "rcvd:loops.twosailors.net"          37  0.001531  0.008790   
0.851463 -
   "to:loops.twosailors.net"            37  0.001531  0.008790   
0.851463 -
   "soft"                               56  0.002297  0.013310   
0.852711 -
   "por_silvc_g"                        78  0.003063  0.018584   
0.858431 -
   "head:GxOZ1RMaQ6GoZ"                103  0.003063  0.024862   
0.890256 +
   "head:HjSTGbCB"                     103  0.003063  0.024862   
0.890256 +
   "head:VQVNRyYP"                     103  0.003063  0.024862   
0.890256 +
   "head:fVqwSw"                       103  0.003063  0.024862   
0.890256 +
   "head:qlfmJ8X"                      103  0.003063  0.024862   
0.890256 +
   "head:t3H1"                         103  0.003063  0.024862   
0.890256 +
   "head:wBFQ2C"                       103  0.003063  0.024862   
0.890256 +
   "rcvd:wr-out-0506.mail.com"         103  0.003063  0.024862   
0.890256 +
   "sharp"                              33  0.000766  0.008036   
0.912796 +
   "from:mail.com"                     133  0.003063  0.032396   
0.913571 +
   "sold"                               34  0.000766  0.008287   
0.915214 +
   "www.geocities.com"                 138  0.003063  0.033651   
0.916526 +
   "arms"                               52  0.000766  0.012808   
0.943443 +
   "head:X-UID"                        343  0.000000  0.086138   
0.999975 +
   "head:Status"                       357  0.000000  0.089653   
0.999976 +
   "head:Content-Length"               373  0.000000  0.093672   
0.999977 +
   "head:X-Keywords"                   373  0.000000  0.093672   
0.999977 +
   N_P_Q_S_s_x_md                       53  0.003518  0.000000  0.498241
                                            0.017800  0.520000  0.375000



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