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PostPosted: Thu Jul 29, 2010 1:00 pm    
Subject: Bug with HTML messages?
Reply with quote  
Denis Beauchemin

Hello,

I just deployed the latest MS (4.80.10) on a fully patched RHEL 5.5
system and it is behaving strangely with HTML-only emails in Thunderbird
3.1 (didn't test others). I tested it with an email with plenty of spam
content but it got delivered with a really low score: 1.5. I then tested
it with the same email sent with *both* HTML and text and it got a score
of 13.

Could there be a problem with some Perl-HTML module?

SA scoring for HTML-only email: SpamAssassin (not cached,
score=1.542, requis 4.5, HTML_MESSAGE 0.00,
HTML_TAG_BALANCE_HEAD 0.82, MIME_HTML_ONLY 0.72,
TVD_SPACE_RATIO 0.00)

SA scoring for HTML+TXT email: (not cached,
score=13.313, requis 4.5, BAYES_00 -1.90, DEAR_SOMETHING 1.97,
DRUGS_ERECTILE 1.99, DRUGS_ERECTILE_OBFU 1.11, DRUG_ED_CAPS 0.94,
HTML_MESSAGE 0.00, KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10,
KAM_VIAGRA6 3.10)

Am I the only one with this problem? I was also able to replicate it on
a much older MS setup (v. 4.63.2):

SA scoring with HTML-only email: (not cached, score=12.639, requis 4.5,
autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis 4.5,
DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)

The output from MailScanner --version on the newest server:
Running on
Linux smtpe3.usherbrooke.ca 2.6.18-194.8.1.el5PAE #1 SMP Wed Jun 23
11:16:22 EDT 2010 i686 i686 i386 GNU/Linux
This is Red Hat Enterprise Linux Server release 5.5 (Tikanga)
This is Perl version 5.008008 (5.8.8)

This is MailScanner version 4.80.10
Module versions are:
1.00 AnyDBM_File
1.30 Archive::Zip
0.23 bignum
1.04 Carp
1.42 Compress::Zlib
1.119 Convert::BinHex
0.17 Convert::TNEF
2.121_08 Data::Dumper
2.27 Date::Parse
1.00 DirHandle
1.05 Fcntl
2.74 File::Basename
2.09 File::Copy
2.01 FileHandle
1.08 File::Path
0.20 File::Temp
0.90 Filesys::Df
3.64 HTML::Entities
3.64 HTML::Parser
3.57 HTML::TokeParser
1.23 IO
1.14 IO::File
1.13 IO::Pipe
2.04 Mail::Header
1.89 Math::BigInt
0.22 Math::BigRat
3.05 MIME::Base64
5.427 MIME::Decoder
5.427 MIME::Decoder::UU
5.427 MIME::Head

5.427 MIME::Parser
3.03 MIME::QuotedPrint
5.427 MIME::Tools
0.13 Net::CIDR
1.25 Net::IP
0.16 OLE::Storage_Lite
1.04 Pod::Escapes
3.05 Pod::Simple
1.09 POSIX
1.21 Scalar::Util
1.78 Socket
2.16 Storable
1.4 Sys::Hostname::Long
0.27 Sys::Syslog
1.26 Test::Pod
0.86 Test::Simple
1.9717 Time::HiRes
1.02 Time::localtime

Optional module versions are:
1.39_01 Archive::Tar
0.23 bignum
1.82 Business::ISBN
1.10 Business::ISBN::Data
1.08 Data::Dump
1.814 DB_File
1.25 DBD::SQLite
1.607 DBI
1.15 Digest
1.01 Digest::HMAC
2.36 Digest::MD5
2.11 Digest::SHA1
1.00 Encode::Detect
0.17008 Error
0.18 ExtUtils::CBuilder
2.18 ExtUtils::ParseXS
2.38 Getopt::Long
0.44 Inline
1.08 IO::String
1.04 IO::Zlib
2.21 IP::Country
missing Mail::ClamAV
3.003001 Mail::SpamAssassin
v2.004 Mail::SPF
1.999001 Mail::SPF::Query
0.2808 Module::Build
0.20 Net::CIDR::Lite
0.65 Net::DNS
0.002.2 Net::DNS::Resolver::Programmable
0.33 Net::LDAP
4.004 NetAddr::IP
1.94 Parse::RecDescent
missing SAVI
2.64 Test::Harness
0.95 Test::Manifest
1.98 Text::Balanced
1.35 URI
0.7203 version
0.62 YAML

Thanks!

Denis

--
Denis Beauchemin, analyste
Université de Sherbrooke, S.T.I.
T: 819.821.8000x62252 F: 819.821.8045
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PostPosted: Thu Jul 29, 2010 1:09 pm    
Subject: Bug with HTML messages?
Reply with quote  
Denis Beauchemin

Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis 4.5,
DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis 4.5,
autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis 4.5,
DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)

Denis

--
Denis Beauchemin, analyste
Université de Sherbrooke, S.T.I.
T: 819.821.8000x62252 F: 819.821.8045
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PostPosted: Thu Jul 29, 2010 1:57 pm    
Subject: Bug with HTML messages?
Reply with quote  
Alex Broens

On 2010-07-29 20:07, Denis Beauchemin wrote:
Quote:
Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis 4.5,
DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis 4.5,
autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis 4.5,
DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


you are not feeding it consistent content.
where is the problem?

get a real spam wich was tagged as spam and dumped in your quaratine.
feed that to spamassassin (without MS), is the result consistent?

if not, its usually due to MS's msg chunk settings
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PostPosted: Thu Jul 29, 2010 2:05 pm    
Subject: Bug with HTML messages?
Reply with quote  
Denis Beauchemin

Le 2010-07-29 14:57, Alex Broens a écrit :
Quote:
On 2010-07-29 20:07, Denis Beauchemin wrote:
Quote:
Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


you are not feeding it consistent content.
where is the problem?

get a real spam wich was tagged as spam and dumped in your quaratine.
feed that to spamassassin (without MS), is the result consistent?

if not, its usually due to MS's msg chunk settings



Alex,

When I feed the emails to SA they get scored much higher than through MS.

My point is that an HTML-only email with quite common spam words are not
being scored, while an HTML+TXT email with the same spam words get
scored. This looks quite suspicious to me.

Denis

--
Denis Beauchemin, analyste
Université de Sherbrooke, S.T.I.
T: 819.821.8000x62252 F: 819.821.8045
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PostPosted: Thu Jul 29, 2010 2:51 pm    
Subject: Bug with HTML messages?
Reply with quote  
Martin Hepworth

Denis

make sure MS "Run as User" can see all the rules etc.


I presume you're testing  the SA scores with the same user as MS is running as.


Martin

2010/7/29 Denis Beauchemin <Denis.Beauchemin@usherbrooke.ca (Denis.Beauchemin@usherbrooke.ca)>
Quote:


Le 2010-07-29 14:57, Alex Broens a écrit :
Quote:
On 2010-07-29 20:07, Denis Beauchemin wrote:
Quote:
 Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis 4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28, DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00, KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis 4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33, MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis 4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28, DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00, KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis 4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33, MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


you are not feeding it consistent content.
where is the problem?

get a real spam wich was tagged as spam and dumped in your quaratine.
feed that to spamassassin (without MS), is the result consistent?

if not, its usually due to MS's msg chunk settings




Alex,

When I feed the emails to SA they get scored much higher than through MS.

My point is that an HTML-only email with quite common spam words are not being scored, while an HTML+TXT email with the same spam words get scored.  This looks quite suspicious to me.

Denis

--
Denis Beauchemin, analyste
Université de Sherbrooke, S.T.I.
T: 819.821.8000x62252 F: 819.821.8045

--


MailScanner mailing list
mailscanner@lists.mailscanner.info (mailscanner@lists.mailscanner.info)
http://lists.mailscanner.info/mailman/listinfo/mailscanner

Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website!




--
Martin Hepworth
Oxford, UK

-- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
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PostPosted: Thu Jul 29, 2010 2:58 pm    
Subject: Bug with HTML messages?
Reply with quote  
Denis Beauchemin

Le 2010-07-29 15:51, Martin Hepworth a écrit :
Quote:
Denis

make sure MS "Run as User" can see all the rules etc.

I presume you're testing the SA scores with the same user as MS is
running as.

Martin

Hi Martin,

Yes, run as user = root and I am also testing as root.

Denis

--
Denis Beauchemin, analyste
Université de Sherbrooke, S.T.I.
T: 819.821.8000x62252 F: 819.821.8045
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PostPosted: Thu Jul 29, 2010 4:09 pm    
Subject: Bug with HTML messages?
Reply with quote  
Alex Broens

On 2010-07-29 21:04, Denis Beauchemin wrote:
Quote:


Le 2010-07-29 14:57, Alex Broens a écrit :
Quote:
On 2010-07-29 20:07, Denis Beauchemin wrote:
Quote:
Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


you are not feeding it consistent content.
where is the problem?

get a real spam wich was tagged as spam and dumped in your quaratine.
feed that to spamassassin (without MS), is the result consistent?

if not, its usually due to MS's msg chunk settings



Alex,

When I feed the emails to SA they get scored much higher than through MS.

My point is that an HTML-only email with quite common spam words are not
being scored, while an HTML+TXT email with the same spam words get
scored. This looks quite suspicious to me.

Denis


what are your MS "chunk" settings?
are you sure MS is sending the full message to SA?

pls post the sample message you're using in pastebin so ppl can try to
reproduce.

Alex

--
MailScanner mailing list
mailscanner@lists.mailscanner.info
http://lists.mailscanner.info/mailman/listinfo/mailscanner

Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website!
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PostPosted: Thu Jul 29, 2010 8:14 pm    
Subject: Bug with HTML messages?
Reply with quote  
Denis Beauchemin

Le 2010-07-29 17:09, Alex Broens a écrit :
Quote:
On 2010-07-29 21:04, Denis Beauchemin wrote:
Quote:


Le 2010-07-29 14:57, Alex Broens a écrit :
Quote:
On 2010-07-29 20:07, Denis Beauchemin wrote:
Quote:
Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD
1.33, MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


you are not feeding it consistent content.
where is the problem?

get a real spam wich was tagged as spam and dumped in your quaratine.
feed that to spamassassin (without MS), is the result consistent?

if not, its usually due to MS's msg chunk settings



Alex,

When I feed the emails to SA they get scored much higher than through
MS.

My point is that an HTML-only email with quite common spam words are
not being scored, while an HTML+TXT email with the same spam words
get scored. This looks quite suspicious to me.

Denis


what are your MS "chunk" settings?
are you sure MS is sending the full message to SA?

pls post the sample message you're using in pastebin so ppl can try to
reproduce.

Alex


Alex,

I don't think my chunk settings really matter since the email is really
short: http://pastebin.com/sMf7rW6s for the HTML-only version and
http://pastebin.com/eiTTWuer for the HTML+TXT version.

Some MS settings that were changed from the default values:
Max Spam Check Size = 500000
Max SpamAssassin Size = 200k trackback

Thanks!

Denis

--
Denis Beauchemin, analyste
Université de Sherbrooke, S.T.I.
T: 819.821.8000x62252 F: 819.821.8045
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PostPosted: Fri Jul 30, 2010 2:10 am    
Subject: Bug with HTML messages?
Reply with quote  
Alex Broens

On 2010-07-30 3:14, Denis Beauchemin wrote:
Quote:
Le 2010-07-29 17:09, Alex Broens a écrit :
Quote:
On 2010-07-29 21:04, Denis Beauchemin wrote:
Quote:


Le 2010-07-29 14:57, Alex Broens a écrit :
Quote:
On 2010-07-29 20:07, Denis Beauchemin wrote:
Quote:
Oops, I switched those 2:

Quote:
SA scoring with HTML-only email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML+TXT email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD
1.33, MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


SA scoring with HTML+TXT email: (not cached, score=12.639, requis
4.5, autolearn=spam, DEAR_SOMETHING 1.60, DRUGS_ERECTILE 0.28,
DRUGS_ERECTILE_OBFU 1.23, DRUG_ED_CAPS 0.32, HTML_MESSAGE 0.00,
KAM_VIAGRA1 3.00, KAM_VIAGRA5 3.10, KAM_VIAGRA6 3.10)

SA scoring with HTML-only email: (not cached, score=7.181, requis
4.5, DCC_CHECK 2.17, HTML_MESSAGE 0.00, HTML_TAG_BALANCE_HEAD 1.33,
MIME_HTML_ONLY 1.46, TVD_SPACE_RATIO 2.22)


you are not feeding it consistent content.
where is the problem?

get a real spam wich was tagged as spam and dumped in your quaratine.
feed that to spamassassin (without MS), is the result consistent?

if not, its usually due to MS's msg chunk settings



Alex,

When I feed the emails to SA they get scored much higher than through
MS.

My point is that an HTML-only email with quite common spam words are
not being scored, while an HTML+TXT email with the same spam words
get scored. This looks quite suspicious to me.

Denis


what are your MS "chunk" settings?
are you sure MS is sending the full message to SA?

pls post the sample message you're using in pastebin so ppl can try to
reproduce.

Alex


Alex,

I don't think my chunk settings really matter since the email is really
short: http://pastebin.com/sMf7rW6s for the HTML-only version and
http://pastebin.com/eiTTWuer for the HTML+TXT version.

Some MS settings that were changed from the default values:
Max Spam Check Size = 500000
Max SpamAssassin Size = 200k trackback

for SA these are two VERY different messages and scores them accordingly.
Nothing wrong in that.

Alex


--
MailScanner mailing list
mailscanner@lists.mailscanner.info
http://lists.mailscanner.info/mailman/listinfo/mailscanner

Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website!
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