Mail::SpamAssassin::Plugin::TextCat(3)
NAME
Mail::SpamAssassin::Plugin::TextCat - TextCat language guesser
SYNOPSIS
loadplugin Mail::SpamAssassin::Plugin::TextCat
DESCRIPTION
This plugin will try to guess the language used in the message text.
You can then specify which languages are considered okay for incoming
mail and if the guessed language is not okay, "UNWANTED_LANGUAGE_BODY"
is triggered
It will always add the results to a "X-Language" name-value pair in the
message metadata data structure. This may be useful as Bayes tokens.
The results can also be added to marked-up messages using "add_header",
with the _LANGUAGES_ tag. See Mail::SpamAssassin::Conf for details.
Note: the language cannot always be recognized with sufficient
confidence. In that case, "UNWANTED_LANGUAGE_BODY" will not trigger.
USER OPTIONS
ok_languages xx [ yy zz ... ] (default: all)
This option is used to specify which languages are considered okay
for incoming mail. SpamAssassin will try to detect the language
used in the message text.
Note that the language cannot always be recognized with sufficient
confidence. In that case, no points will be assigned.
The rule "UNWANTED_LANGUAGE_BODY" is triggered based on how this is
set.
In your configuration, you must use the two or three letter
language specifier in lowercase, not the English name for the
language. You may also specify "all" if a desired language is not
listed, or if you want to allow any language. The default setting
is "all".
Examples:
ok_languages all (allow all languages)
ok_languages en (only allow English)
ok_languages en ja zh (allow English, Japanese, and Chinese)
Note: if there are multiple ok_languages lines, only the last one
is used.
Select the languages to allow from the list below:
af - Afrikaans
am - Amharic
ar - Arabic
be - Byelorussian
bg - Bulgarian
bs - Bosnian
ca - Catalan
cs - Czech
cy - Welsh
da - Danish
de - German
el - Greek
en - English
eo - Esperanto
es - Spanish
et - Estonian
eu - Basque
fa - Persian
fi - Finnish
fr - French
fy - Frisian
ga - Irish Gaelic
gd - Scottish Gaelic
he - Hebrew
hi - Hindi
hr - Croatian
hu - Hungarian
hy - Armenian
id - Indonesian
is - Icelandic
it - Italian
ja - Japanese
ka - Georgian
ko - Korean
la - Latin
lt - Lithuanian
lv - Latvian
mr - Marathi
ms - Malay
ne - Nepali
nl - Dutch
no - Norwegian
pl - Polish
pt - Portuguese
qu - Quechua
rm - Rhaeto-Romance
ro - Romanian
ru - Russian
sa - Sanskrit
sco - Scots
sk - Slovak
sl - Slovenian
sq - Albanian
sr - Serbian
sv - Swedish
sw - Swahili
ta - Tamil
th - Thai
tl - Tagalog
tr - Turkish
uk - Ukrainian
vi - Vietnamese
yi - Yiddish
zh - Chinese (both Traditional and Simplified)
zh.big5 - Chinese (Traditional only)
zh.gb2312 - Chinese (Simplified only)
inactive_languages xx [ yy zz ... ] (default: see below)
This option is used to specify which languages will not be
considered when trying to guess the language. For performance
reasons, supported languages that have fewer than about 5 million
speakers are disabled by default. Note that listing a language in
"ok_languages" automatically enables it for that user.
The default setting is:
bs cy eo et eu fy ga gd is la lt lv rm sa sco sl yi
That list is Bosnian, Welsh, Esperanto, Estonian, Basque, Frisian,
Irish Gaelic, Scottish Gaelic, Icelandic, Latin, Lithuanian,
Latvian, Rhaeto-Romance, Sanskrit, Scots, Slovenian, and Yiddish.
textcat_max_languages N (default: 5)
The maximum number of languages before the classification is
considered unknown.
textcat_optimal_ngrams N (default: 0)
If the number of ngrams is lower than this number then they will be
removed. This can be used to speed up the program for longer
inputs. For shorter inputs, this should be set to 0.
textcat_max_ngrams N (default: 400)
The maximum number of ngrams that should be compared with each of
the languages models (note that each of those models is used
completely).
textcat_acceptable_score N (default: 1.05)
Include any language that scores at least
"textcat_acceptable_score" in the returned list of languages
perl v5.10.0 Mail::SpamAssassin::Plugin::TextCat(3)
Mac OS X 10.6Server - Generated Thu Apr 15 06:47:06 CDT 2010