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

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

  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_"

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.

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.

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")

"http://issues.apache.org/SpamAssassin/show_bug.cgi?id=3109"
2018-09-14 perl v5.28.1

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