ignore text/plain part of multipart/alternative messages?

David Flanagan david at davidflanagan.com
Wed Aug 13 01:43:33 CEST 2003


> Can you post the output of "bogofilter -vvv <spam.txt", too?

Matthias,

I'm not really interested in analyzing why this particular spam got
through bogofilter.  I'm pretty certain that the reason is that it
included is that the random book excerpt happened to be about George
Bush the first, and I get a lot of legitimate mail about the current
George Bush.

I'm more interested in discussing a general technique for defeating this
type of spam: by ignoring the text/plain part of multipart/alternative
messages.  I haven't heard and argument yet that convinces me that this
isn't the right thing to do.  I could probably tweak my bogofilter
confuration to catch this variety of spam as is, but I just think that
the right solution is to discard text/plain in this case: it is either
the same as teh text/html part, or it is intended to confuse the filter,
so in either case we can and should discard it.

Here's bogofilter output:

bogofilter -v < /tmp/spam.txt
X-Bogosity: No, tests=bogofilter, spamicity=0.501542, version=0.13.7

If I cut out the text/plain version and just run bogofilter on the
text/html, I get this:

bogofilter -v < /tmp/spam2.txt
X-Bogosity: Yes, tests=bogofilter, spamicity=0.999950, version=0.13.7

Remarkable difference, isn't it?

The -vvv output on the full message, including the text/plain part is
below.

	David
X-Bogosity: No, tests=bogofilter, spamicity=0.501542, version=0.13.7
                                     n    pgood     pbad      fw     U
"Mail-from"                        636  0.496865  0.000180  0.000369 +
"X-Coding-System"                  636  0.496865  0.000180  0.000369 +
"undecided-unix"                   510  0.396552  0.000360  0.000916 +
"credentials"                        4  0.003135  0.000000  0.001035 +
"fate"                               4  0.003135  0.000000  0.001035 +
"will!"                              4  0.003135  0.000000  0.001035 +
"Baker"                              1  0.000784  0.000000  0.004109 +
"Ronald"                             1  0.000784  0.000000  0.004109 +
"aired"                              1  0.000784  0.000000  0.004109 +
"evenings"                           1  0.000784  0.000000  0.004109 +
"hollow"                             1  0.000784  0.000000  0.004109 +
"straw"                              1  0.000784  0.000000  0.004109 +
"resist"                            13  0.009404  0.000090  0.009804 +
"to:Flanagan"                      398  0.266458  0.005227  0.019250 +
"Flanagan"                         328  0.211599  0.005227  0.024119 +
"Goodman"                            5  0.003135  0.000090  0.028718 +
"Bellingham"                        91  0.055643  0.001802  0.031419 +
"supporters"                         8  0.004702  0.000180  0.037389 +
"reporter"                           4  0.002351  0.000090  0.037860 +
"Bush"                              93  0.052508  0.002343  0.042759 +
"Aug"                               32  0.018025  0.000811  0.043177 +
"nobody"                            74  0.041536  0.001893  0.043629 +
"Ted"                                7  0.003918  0.000180  0.044505 +
"hoped"                             10  0.005486  0.000270  0.047337 +
"inflation"                          3  0.001567  0.000090  0.055570 +
"Bush's"                            26  0.013323  0.000811  0.057524 +
"precisely"                         14  0.007053  0.000451  0.060304 +
"attempted"                         11  0.005486  0.000360  0.061981 +
"Together"                           8  0.003918  0.000270  0.064982 +
"voters"                             5  0.002351  0.000180  0.071892 +
"George"                            59  0.027429  0.002163  0.073149 +
"showing"                           34  0.015674  0.001262  0.074601 +
"From"                            1113  0.499216  0.042898  0.079135 +
"to:David"                         653  0.285266  0.026045  0.083669 +
"question"                         106  0.046238  0.004236  0.083951 +
"group"                            137  0.055643  0.005948  0.096598 +
"president"                         33  0.013323  0.001442  0.097758 +
"examples"                          57  0.022727  0.002523  0.099990 +
"admitted"                           8  0.003135  0.000360  0.103525 +
"attempting"                         8  0.003135  0.000360  0.103525 +
"emerged"                            6  0.002351  0.000270  0.103655 +
"intellectual"                       6  0.002351  0.000270  0.103655 +
"crowds"                             4  0.001567  0.000180  0.103914 +
"imperative"                         4  0.001567  0.000180  0.103914 +
"pioneers"                           4  0.001567  0.000180  0.103914 +
"$1.3"                               2  0.000784  0.000090  0.104688 +
"analogy"                            2  0.000784  0.000090  0.104688 +
"spent"                             45  0.017241  0.002073  0.107389 +
"political"                         52  0.019592  0.002433  0.110534 +
"advance"                           36  0.013323  0.001712  0.113972 +
"moving"                            53  0.019592  0.002523  0.114157 +
"himself"                           30  0.010972  0.001442  0.116258 +
"presidential"                      11  0.003918  0.000541  0.121529 +
"David"                            919  0.322100  0.045782  0.124451 +
"since"                            220  0.076803  0.010995  0.125244 +
"Thanks"                           369  0.128527  0.018475  0.125687 +
"Thing"                              9  0.003135  0.000451  0.126001 +
"idea"                             140  0.045455  0.007390  0.139865 +
"scene"                              5  0.001567  0.000270  0.147652 +
"early"                             73  0.022727  0.003965  0.148594 +
"President"                        134  0.041536  0.007300  0.149498 +
"him"                              123  0.036834  0.006849  0.156816 +
"James"                             43  0.012539  0.002433  0.162577 +
"front"                            165  0.047022  0.009463  0.167544 +
"unable"                            25  0.007053  0.001442  0.169835 +
"views"                             25  0.007053  0.001442  0.169835 +
"rather"                           117  0.032915  0.006759  0.170387 +
"hitting"                           14  0.003918  0.000811  0.171669 +
"expert"                            31  0.008621  0.001802  0.173006 +
"were"                             379  0.105016  0.022080  0.173734 +
"creating"                          40  0.010972  0.002343  0.176041 +
"story"                             78  0.020376  0.004686  0.187016 +
"ocean"                              6  0.001567  0.000360  0.187366 +
"climbed"                            3  0.000784  0.000180  0.187745 +
"asked"                             98  0.025078  0.005948  0.191733 +
"workers"                           28  0.007053  0.001712  0.195424 +
"indicated"                         25  0.006270  0.001532  0.196466 +
"Reagan"                            16  0.003918  0.000991  0.202043 +
"his"                              261  0.063480  0.016222  0.203543 +
"strategy"                          30  0.007053  0.001893  0.211626 +
"sessions"                          10  0.002351  0.000631  0.211762 +
"media"                            155  0.036050  0.009823  0.214153 +
"didn't"                           146  0.033699  0.009283  0.215981 +
"cases"                             48  0.010972  0.003064  0.218349 +
"operation"                         31  0.007053  0.001983  0.219485 +
"fantastic"                         25  0.005486  0.001622  0.228294 +
"respond"                           80  0.017241  0.005227  0.232665 +
"indication"                        11  0.002351  0.000721  0.234852 +
"lunch"                             11  0.002351  0.000721  0.234852 +
"content-classes"                   67  0.014107  0.004416  0.238438 +
"there"                            689  0.144201  0.045512  0.239902 +
"knew"                              45  0.009404  0.002974  0.240299 +
"prepared"                          64  0.013323  0.004236  0.241262 +
"biggest"                           34  0.007053  0.002253  0.242150 +
"had"                              451  0.090909  0.030191  0.249310 +
"various"                          105  0.021160  0.007030  0.249384 +
"policy"                           103  0.020376  0.006939  0.254062 +
"starting"                          80  0.015674  0.005407  0.256519 +
"invited"                           24  0.004702  0.001622  0.256566 +
"factory"                            8  0.001567  0.000541  0.256697 +
"inevitable"                         8  0.001567  0.000541  0.256697 +
"But"                              470  0.090909  0.031903  0.259776 +
"urn"                               73  0.014107  0.004957  0.260036 +
"behind"                            65  0.012539  0.004416  0.260475 +
"We're"                            119  0.022727  0.008111  0.263031 +
"could"                            619  0.115987  0.042448  0.267921 +
"campaign"                         134  0.025078  0.009193  0.268242 +
"sound"                             63  0.011755  0.004326  0.269023 +
"dependent"                         17  0.003135  0.001172  0.272143 +
"Thread-Index"                      64  0.011755  0.004416  0.273096 +
"city"                              96  0.017241  0.006669  0.278933 +
"television"                        31  0.005486  0.002163  0.282823 +
"another"                          336  0.058777  0.023522  0.285814 +
"Robert"                            64  0.010972  0.004506  0.291152 +
"series"                            55  0.009404  0.003875  0.291842 +
"met"                               42  0.007053  0.002974  0.296622 +
"anything"                         285  0.047806  0.020187  0.296909 +
"American"                         207  0.034483  0.014690  0.298748 +
"plain"                           4025  0.665361  0.286229  0.300791 +
"showed"                            43  0.007053  0.003064  0.302885 +
"going"                            438  0.071317  0.031273  0.304835 +
"widely"                            58  0.009404  0.004146  0.305969 +
"X-MimeOLE"                       1185  0.188871  0.085076  0.310556 +
"either"                           249  0.039185  0.017934  0.313985 +
"government"                       170  0.026646  0.012257  0.315068 +
"produced"                          30  0.004702  0.002163  0.315095 +
"Carter"                            10  0.001567  0.000721  0.315162 +
"what"                             955  0.148119  0.069034  0.317905 +
"unknown"                          434  0.066614  0.031453  0.320729 +
"Produced"                        1299  0.199060  0.094178  0.321167 +
"also"                             946  0.144201  0.068673  0.322602 +
"closing"                           26  0.003918  0.001893  0.325719 +
"three"                            203  0.030564  0.014780  0.325957 +
"MimeOLE"                         1259  0.188871  0.091745  0.326941 +
"why"                              333  0.048589  0.024423  0.334509 +
"What"                             385  0.055643  0.028298  0.337125 +
"called"                           214  0.030564  0.015771  0.340377 +
"before"                           632  0.087774  0.046864  0.348073 +
"upon"                             130  0.018025  0.009643  0.348532 +
"They"                             300  0.041536  0.022260  0.348929 +
"during"                           334  0.046238  0.024784  0.348960 +
"tell"                             340  0.047022  0.025234  0.349236 +
"won't"                            320  0.043103  0.023882  0.356532 +
"small"                            257  0.034483  0.019196  0.357612 +
"described"                        112  0.014890  0.008381  0.360159 +
"charset"                         4546  0.603448  0.340303  0.360585 +
"answer"                           154  0.020376  0.011536  0.361489 +
"national"                         131  0.017241  0.009823  0.362962 +
"they"                             956  0.125392  0.071738  0.363912 +
"fact"                             222  0.028997  0.016673  0.365074 +
"Point"                              6  0.000784  0.000451  0.365155 +
"candidate"                          6  0.000784  0.000451  0.365155 +
"areas"                            130  0.016458  0.009823  0.373784 +
"getting"                          322  0.040752  0.024333  0.373865 +
"way"                              865  0.108934  0.065429  0.375246 +
"used"                             431  0.054075  0.032624  0.376293 +
"plane"                             25  0.003135  0.001893  0.376469 +
"York"                             132  0.016458  0.010004  0.378050 +
"little"                           359  0.044671  0.027217  0.378605 +
"designed"                         134  0.016458  0.010184  0.382257 +
"variety"                           65  0.007837  0.004957  0.387439 +
"week"                             344  0.040752  0.026316  0.392375 +
"that"                            3514  0.398119  0.270908  0.404929 -
"come"                             374  0.042320  0.028839  0.405279 -
"qualifier"                          7  0.000784  0.000541  0.408286 -
"people"                           832  0.092476  0.064348  0.410317 -
"ideas"                            129  0.014107  0.010004  0.414912 -
"AcNZ0N83BfXqElOvTaSKyw"             0  0.000000  0.000000  0.415000 -
"Bush-Baker"                         0  0.000000  0.000000  0.415000 -
"Carter's"                           0  0.000000  0.000000  0.415000 -
"Chichi"                             0  0.000000  0.000000  0.415000 -
"Damia"                              0  0.000000  0.000000  0.415000 -
"Jima"                               0  0.000000  0.000000  0.415000 -
"KG-!!Pe"                            0  0.000000  0.000000  0.415000 -
"Kennebunkport"                      0  0.000000  0.000000  0.415000 -
"Lilah"                              0  0.000000  0.000000  0.415000 -
"Mosbacher's"                        0  0.000000  0.000000  0.415000 -
"Reagan's"                           0  0.000000  0.000000  0.415000 -
"UMM!!W"                             0  0.000000  0.000000  0.415000 -
"Walker's"                           0  0.000000  0.000000  0.415000 -
"accompaniment"                      0  0.000000  0.000000  0.415000 -
"announcer"                          0  0.000000  0.000000  0.415000 -
"applause"                           0  0.000000  0.000000  0.415000 -
"aridity"                            0  0.000000  0.000000  0.415000 -
"barbecues"                          0  0.000000  0.000000  0.415000 -
"blurted"                            0  0.000000  0.000000  0.415000 -
"caucuses"                           0  0.000000  0.000000  0.415000 -
"cultivation"                        0  0.000000  0.000000  0.415000 -
"cushion"                            0  0.000000  0.000000  0.415000 -
"demagogic"                          0  0.000000  0.000000  0.415000 -
"discouraging"                       0  0.000000  0.000000  0.415000 -
"dyanimc"                            0  0.000000  0.000000  0.415000 -
"elitist"                            0  0.000000  0.000000  0.415000 -
"eneregtic"                          0  0.000000  0.000000  0.415000 -
"fast-moving"                        0  0.000000  0.000000  0.415000 -
"fished"                             0  0.000000  0.000000  0.415000 -
"from:Damia"                         0  0.000000  0.000000  0.415000 -
"from:Lilah"                         0  0.000000  0.000000  0.415000 -
"from:stevegkswl"                    0  0.000000  0.000000  0.415000 -
"grappled"                           0  0.000000  0.000000  0.415000 -
"greasing"                           0  0.000000  0.000000  0.415000 -
"inexperience"                       0  0.000000  0.000000  0.415000 -
"ingratiate"                         0  0.000000  0.000000  0.415000 -
"intoned"                            0  0.000000  0.000000  0.415000 -
"kMhA"                               0  0.000000  0.000000  0.415000 -
"newsfilmlike"                       0  0.000000  0.000000  0.415000 -
"overheard"                          0  0.000000  0.000000  0.415000 -
"placards"                           0  0.000000  0.000000  0.415000 -
"portraits"                          0  0.000000  0.000000  0.415000 -
"ridiculed"                          0  0.000000  0.000000  0.415000 -
"shootdown"                          0  0.000000  0.000000  0.415000 -
"skids"                              0  0.000000  0.000000  0.415000 -
"slogan"                             0  0.000000  0.000000  0.415000 -
"television-based"                   0  0.000000  0.000000  0.415000 -
"train.'"                            0  0.000000  0.000000  0.415000 -
"wretched"                           0  0.000000  0.000000  0.415000 -
"yelled"                             0  0.000000  0.000000  0.415000 -
"about"                           1943  0.211599  0.150775  0.416076 -
"talking"                          116  0.012539  0.009012  0.418174 -
"Payment"                           51  0.005486  0.003965  0.419560 -
"Hampshire"                         22  0.002351  0.001712  0.421397 -
"who"                             1087  0.115204  0.084715  0.423748 -
"was"                             1642  0.173981  0.127974  0.423818 -
"call"                             549  0.057994  0.042808  0.424676 -
"when"                            1021  0.107367  0.079668  0.425954 -
"weeks"                            261  0.027429  0.020368  0.426127 -
"Kennedy"                           15  0.001567  0.001172  0.427738 -
"just"                            1658  0.171630  0.129686  0.430399 -
"Group"                            129  0.013323  0.010094  0.431049 -
"reason"                           373  0.038401  0.029200  0.431942 -
"much"                             889  0.090909  0.069665  0.433848 -
"index"                            100  0.010188  0.007841  0.434896 -
"these"                           1212  0.123041  0.095079  0.435903 -
"V6.00.2800.1106"                  641  0.065047  0.050288  0.436018 -
"The"                             3601  0.364420  0.282624  0.436793 -
"days"                             613  0.061129  0.048216  0.440952 -
"oreilly.com"                     4108  0.408307  0.323270  0.441881 -
"american"                           8  0.000784  0.000631  0.445937 -
"virtually"                         65  0.006270  0.005137  0.450348 -
"not"                             3464  0.333072  0.273882  0.451240 -
"been"                            1567  0.150470  0.123919  0.451616 -
"Each"                              98  0.009404  0.007751  0.451793 -
"property"                         139  0.013323  0.010995  0.452133 -
"have"                            3286  0.307210  0.260815  0.459161 -
"music"                             42  0.003918  0.003335  0.459733 -
"has"                             1916  0.176332  0.152397  0.463594 -
"summer"                            43  0.003918  0.003425  0.466362 -
"would"                           2019  0.181034  0.161139  0.470928 -
"factors"                           35  0.003135  0.002794  0.471225 -
"can"                             2905  0.257053  0.232246  0.474650 -
"give"                             642  0.056426  0.051370  0.476545 -
"Jimmy"                              9  0.000784  0.000721  0.479088 -
"house"                            162  0.014107  0.012978  0.479155 -
"Content-Class"                     55  0.004702  0.004416  0.484294 -
"Thank"                            708  0.060345  0.056867  0.485165 -
"their"                           1264  0.107367  0.101568  0.486123 -
"time"                            1714  0.144984  0.137797  0.487292 -
"almost"                           301  0.025078  0.024243  0.491529 -
"with"                           12026  0.995298  0.969358  0.493398 -
"from"                           11997  0.991379  0.967195  0.493826 -
"state"                            304  0.025078  0.024513  0.494301 -
"for"                            12097  0.992163  0.976118  0.495924 -
"history"                          182  0.014890  0.014690  0.496610 -
"like"                            2695  0.220219  0.217556  0.496958 -
"avoid"                            125  0.010188  0.010094  0.497667 -
"sent"                            1137  0.091693  0.091925  0.500632 -
"all"                             2612  0.210031  0.211247  0.501443 -
"david"                          12352  0.984326  1.000000  0.503949 -
"Sun"                             1800  0.143417  0.145728  0.503996 -
"out"                             2076  0.164577  0.168169  0.505397 -
"Maximum"                           20  0.001567  0.001622  0.508545 -
"Windows-1252"                     220  0.017241  0.017844  0.508587 -
"always"                           427  0.032915  0.034697  0.513174 -
"Who"                               72  0.005486  0.005858  0.516386 -
"iso-8859-1"                      2392  0.181034  0.194755  0.518255 -
"one"                             2561  0.193574  0.208544  0.518614 -
"this"                            5478  0.405172  0.447098  0.524596 -
"any"                             2129  0.154389  0.174117  0.530026 -
"combo"                             11  0.000784  0.000901  0.534767 -
"private"                          210  0.014890  0.017213  0.536176 -
"are"                             4049  0.286050  0.332012  0.537182 -
"most"                            1176  0.082288  0.096521  0.539798 -
"valued"                            45  0.003135  0.003695  0.540985 -
"want"                            1755  0.121473  0.144196  0.542764 -
"brought"                           57  0.003918  0.004686  0.544596 -
"and"                             7003  0.459248  0.578317  0.557379 -
"Content-Type"                   10736  0.702194  0.886806  0.558090 -
"experts"                           60  0.003918  0.004957  0.558467 -
"while"                            712  0.046238  0.058850  0.560004 -
"approval"                          99  0.006270  0.008201  0.566725 -
"the"                             7492  0.470219  0.621125  0.569137 -
"extraordinary"                     25  0.001567  0.002073  0.569360 -
"First"                            450  0.028213  0.037311  0.569418 -
"wanted"                           390  0.024295  0.032354  0.571130 -
"through"                         1281  0.078370  0.106435  0.575930 -
"Many"                             398  0.024295  0.033075  0.576520 -
"man"                              257  0.015674  0.021359  0.576750 -
"to:david"                        8391  0.500784  0.698630  0.582476 -
"business"                         613  0.036050  0.051099  0.586339 -
"more"                            2813  0.165361  0.234499  0.586453 -
"Box"                              202  0.011755  0.016853  0.589081 -
"One"                              642  0.036834  0.053623  0.592799 -
"benefit"                           96  0.005486  0.008021  0.593824 -
"midnight"                          55  0.003135  0.004596  0.594486 -
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"text"                           11820  0.670063  0.988194  0.595923 -
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"name"                            1038  0.057994  0.086878  0.599688 -
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"subject"                          859  0.047806  0.071918  0.600697 +
"primary"                           99  0.005486  0.008291  0.601794 +
"period"                           143  0.007837  0.011986  0.604644 +
"over"                            1542  0.083072  0.129416  0.609049 +
"never"                            742  0.039969  0.062275  0.609080 +
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"your"                            6234  0.333072  0.523522  0.611167 +
"true"                             356  0.018809  0.029921  0.614011 +
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"During"                            76  0.003918  0.006399  0.620171 +
"telling"                          168  0.008621  0.014149  0.621388 +
"Quick"                            124  0.006270  0.010454  0.625093 +
"$2"                               125  0.006270  0.010544  0.627102 +
"million"                          308  0.014890  0.026045  0.636245 +
"Microsoft"                       4616  0.222571  0.390411  0.636904 +
"pocket"                            49  0.002351  0.004146  0.638065 +
"alone"                            214  0.010188  0.018115  0.640021 +
"For"                             1626  0.076019  0.137797  0.644465 +
"email"                           3470  0.162226  0.294070  0.644472 +
"developed"                        221  0.010188  0.018745  0.647870 +
"six"                              105  0.004702  0.008922  0.654845 +
"delete"                           337  0.014107  0.028749  0.670828 +
"success"                          211  0.008621  0.018025  0.676451 +
"You"                             3625  0.142633  0.310292  0.685084 +
"to:oreilly.com"                  7946  0.311129  0.680335  0.686192 +
"address"                         1417  0.054075  0.121485  0.691983 +
"item"                             124  0.004702  0.010634  0.693379 +
"Times"                            502  0.018809  0.043079  0.696075 +
"This"                            7075  0.264890  0.607156  0.696242 +
"Content-Transfer-Encoding"       8196  0.304859  0.703587  0.697694 +
"become"                           382  0.014107  0.032805  0.699284 +
"http"                           10945  0.397335  0.940699  0.703045 +
"please"                          2968  0.107367  0.255137  0.703818 +
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"our"                             4321  0.154389  0.371665  0.706515 +
"format"                          5464  0.193574  0.470169  0.708360 +
"payment"                          246  0.008621  0.021179  0.710698 +
"track"                            489  0.016458  0.042177  0.719314 +
"Now"                             1217  0.040752  0.104993  0.720384 +
"monthly"                          223  0.007053  0.019286  0.732202 +
"excitement"                        25  0.000784  0.002163  0.733909 +
"$100"                             225  0.007053  0.019466  0.734022 +
"message"                         6202  0.194357  0.536590  0.734102 +
"host"                             404  0.012539  0.034968  0.736047 +
"performance"                      450  0.013323  0.039023  0.745477 +
"multipart"                       6770  0.196708  0.587509  0.749165 +
"Amount"                            54  0.001567  0.004686  0.749306 +
"index.html"                       600  0.017241  0.052091  0.751317 +
"content"                          578  0.016458  0.050198  0.753089 +
"New"                             1795  0.050940  0.155912  0.753734 +
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"$500"                             139  0.003135  0.012167  0.795102 +
"money"                           1185  0.026646  0.103731  0.795622 +
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"Here"                            2411  0.051724  0.211337  0.803375 +
"$200"                              78  0.001567  0.006849  0.813724 +
"capitalize"                        41  0.000784  0.003605  0.821325 +
"offer"                            973  0.018025  0.085616  0.826078 +
"proven"                           224  0.003918  0.019737  0.834332 +
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"nbsp"                            4081  0.057994  0.361121  0.861627 +
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"target"                          1056  0.011755  0.093818  0.888646 +
"html"                            9772  0.107367  0.868331  0.889958 +
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"size"                            7042  0.069749  0.626622  0.899838 +
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"multi-part"                      5128  0.047022  0.456741  0.906658 +
"approved"                         430  0.003918  0.038302  0.907178 +
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"ape"                                1  0.000000  0.000090  0.994208 +
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"atrophy"                            1  0.000000  0.000090  0.994208 +
"blab"                               1  0.000000  0.000090  0.994208 +
"conceded"                           1  0.000000  0.000090  0.994208 +
"dominant"                           1  0.000000  0.000090  0.994208 +
"footage"                            1  0.000000  0.000090  0.994208 +
"on-the-job"                         1  0.000000  0.000090  0.994208 +
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"surrounded"                         1  0.000000  0.000090  0.994208 +
"X-UIDL"                          8201  0.003918  0.738645  0.994722 +
"buys"                               2  0.000000  0.000180  0.997090 +
"cocktails"                          2  0.000000  0.000180  0.997090 +
"identifiable"                       2  0.000000  0.000180  0.997090 +
"shorts"                             2  0.000000  0.000180  0.997090 +
"$544.79"                            3  0.000000  0.000270  0.998056 +
"studied"                            3  0.000000  0.000270  0.998056 +
"upbeat"                             3  0.000000  0.000270  0.998056 +
"american_newsletter.html"           5  0.000000  0.000451  0.998832 +
"readily"                            5  0.000000  0.000451  0.998832 +
"subj:Going"                         5  0.000000  0.000451  0.998832 +
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"american.certrewards.com"           6  0.000000  0.000541  0.999027 +
"musical"                            6  0.000000  0.000541  0.999027 +
"seminars"                           6  0.000000  0.000541  0.999027 +
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"hats"                               7  0.000000  0.000631  0.999165 +
"airport"                           10  0.000000  0.000901  0.999416 +
"Slow"                              11  0.000000  0.000991  0.999469 +
"drink"                             13  0.000000  0.001172  0.999550 +
"Iowa"                              14  0.000000  0.001262  0.999582 +
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"rndm"                              34  0.000000  0.003064  0.999828 +
"advertisements"                    36  0.000000  0.003244  0.999838 +
"www.certrewards.com"               38  0.000000  0.003425  0.999846 +
"site_id"                           41  0.000000  0.003695  0.999857 +
"skip_project_changes"              44  0.000000  0.003965  0.999867 +
"projectID"                         47  0.000000  0.004236  0.999876 +
"tracking_id"                       49  0.000000  0.004416  0.999881 +
"fname"                             53  0.000000  0.004776  0.999890 +
"lname"                             53  0.000000  0.004776  0.999890 +
"mime_used"                         53  0.000000  0.004776  0.999890 +
"mortgageopt"                       53  0.000000  0.004776  0.999890 +
"zip_code"                          53  0.000000  0.004776  0.999890 +
"Minute"                            54  0.000000  0.004867  0.999892 +
"list_id"                           62  0.000000  0.005588  0.999906 +
"lender"                            77  0.000000  0.006939  0.999924 +
"subj:Are"                         111  0.000000  0.010004  0.999947 +
"Refinance"                        150  0.000000  0.013518  0.999961 +
"subj:Rates"                       154  0.000000  0.013879  0.999962 +
N_P_Q_S_s_x_md                     312  0.00e+00  3.08e-03  5.02e-01
                                        1.00e-02  4.15e-01  0.100




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