Re: spam assassin: default scores for URIBL_.._SURBL seem low to me

2009-03-24 Thread John Hardin

On Tue, 24 Mar 2009, Dennis German wrote:


It seems to me that the default score of from 1.2 to 1.9,
for messages originating from URIs which are Black listed
in any of the various JP,  AB, OB, PH, SC, ...  lists,
should be significantly higher, perhaps nearly the default
required score of 5.0

Some information is at http://ruleqa.spamassassin.org,
including the fact that
86% of URIBL_JP_SURBL hits also hit URIBL_OB_SURBL
66% of URIBL_JP_SURBL hits also hit URIBL_WS_SURBL
56% of URIBL_JP_SURBL hits also hit URIBL_AB_SURBL


The default scores are assigned by analysis of the combinations of rule 
hits. See http://wiki.apache.org/spamassassin/HowScoresAreAssigned and the 
discussion of the Perceptron.


Assigning any given single rule a poison-pill score (or nearly so) 
is generally a bad idea.


--
 John Hardin KA7OHZhttp://www.impsec.org/~jhardin/
 jhar...@impsec.orgFALaholic #11174 pgpk -a jhar...@impsec.org
 key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
---
  An entitlement beneficiary is a person or special interest group
  who didn't earn your money, but demands the right to take your
  money because they *want* it.-- John McKay, _The Welfare State:
   No Mercy for the Middle Class_
---
 62 days since Obama's inauguration and still no unicorn!


spam assassin: default scores for URIBL_.._SURBL seem low to me

2009-03-24 Thread Dennis German

It seems to me that the default score of from 1.2 to 1.9,
 for messages originating from URIs which are Black listed
in any of the various JP,  AB, OB, PH, SC, ...  lists,
should be significantly higher, perhaps nearly the default
required score of 5.0

Some information is at http://ruleqa.spamassassin.org,
including the fact that
86% of URIBL_JP_SURBL hits also hit URIBL_OB_SURBL
66% of URIBL_JP_SURBL hits also hit URIBL_WS_SURBL
56% of URIBL_JP_SURBL hits also hit URIBL_AB_SURBL
etc
Is there a discussion of the tests and scores and philosophy
including but not limited to these somewhere?
Thanks,
Dennis German