Mail::SpamAssassin::Plugin::Shortcircuit(3)		User Contributed Perl Documentation	       Mail::SpamAssassin::Plugin::Shortcircuit(3)

NAME

       Mail::SpamAssassin::Plugin::Shortcircuit - short-circuit evaluation for certain rules

SYNOPSIS

	 loadplugin	Mail::SpamAssassin::Plugin::Shortcircuit

	 report Content analysis details:   (_SCORE_ points, _REQD_ required, s/c _SCTYPE_)

	 add_header all Status "_YESNO_, score=_SCORE_ required=_REQD_ tests=_TESTS_ shortcircuit=_SCTYPE_ autolearn=_AUTOLEARN_ version=_VERSION_"

DESCRIPTION

       This plugin implements simple, test-based shortcircuiting.  Shortcircuiting a test will force all other pending rules to be skipped, if
       that test is hit.  In addition, a symbolic rule, "SHORTCIRCUIT", will fire.

       Recomended usage is to use "priority" to set rules with strong S/O values (ie.  1.0) to be run first, and make instant spam or ham
       classification based on that.

CONFIGURATION SETTINGS

       The following configuration settings are used to control shortcircuiting:

       shortcircuit SYMBOLIC_TEST_NAME {ham|spam|on|off}
	   Shortcircuiting a test will force all other pending rules to be skipped, if that test is hit.

	   Recomended usage is to use "priority" to set rules with strong S/O values (ie.  1.0) to be run first, and make instant spam or ham
	   classification based on that.

	   To override a test that uses shortcircuiting, you can set the classification type to "off".

	   on  Shortcircuits the rest of the tests, but does not make a strict classification of spam or ham.  Rather, it uses the default score
	       for the rule being shortcircuited.  This would allow you, for example, to define a rule such as

		 body TEST /test/
		 describe TEST test rule that scores barely over spam threshold
		 score TEST 5.5
		 priority TEST -100
		 shortcircuit TEST on

	       The result of a message hitting the above rule would be a final score of 5.5, as opposed to 100 (default) if it were classified as
	       spam.

	   off Disables shortcircuiting on said rule.

	   spam
	       Shortcircuit the rule using a set of defaults; override the default score of this rule with the score from
	       "shortcircuit_spam_score", set the "noautolearn" tflag, and set priority to "-100".  In other words, equivalent to:

		 shortcircuit TEST on
		 priority TEST -100
		 score TEST 100
		 tflags TEST noautolearn

	   ham Shortcircuit the rule using a set of defaults; override the default score of this rule with the score from
	       "shortcircuit_ham_score", set the "noautolearn" and "nice" tflags, and set priority to "-100".	In other words, equivalent to:

		 shortcircuit TEST on
		 priority TEST -100
		 score TEST -100
		 tflags TEST noautolearn nice

       shortcircuit_spam_score n.nn (default: 100)
	   When shortcircuit is used on a rule, and the shortcircuit classification type is set to "spam", this value should be applied in place
	   of the default score for that rule.

       shortcircuit_ham_score n.nn (default: -100)
	   When shortcircuit is used on a rule, and the shortcircuit classification type is set to "ham", this value should be applied in place of
	   the default score for that rule.

TAGS

       The following tags are added to the set available for use in reports, headers etc.:

	 _SC_		   shortcircuit status (classification and rule name)
	 _SCRULE_	   rulename that caused the shortcircuit
	 _SCTYPE_	   shortcircuit classification ("spam", "ham", "default", "none")

SEE ALSO

       "http://issues.apache.org/SpamAssassin/show_bug.cgi?id=3109"

perl v5.12.1							    2010-03-16			       Mail::SpamAssassin::Plugin::Shortcircuit(3)