https://issues.apache.org/SpamAssassin/show_bug.cgi?id=5736





--- Comment #11 from Matt Kettler <[EMAIL PROTECTED]>  2008-10-30 06:46:57 PST 
---
Ok, digging in ruleqa, sidneys rule is having a lower hit rate, but the FP rate
is more-or-less zero.

The spam hits went from 370 to 237, and the nonspam hits went from 19 to 0. The
difference in hits is 133:19 spam:ham or a 7:1 ratio in the affected hits, or a
S/O of 0.875. This is cutting into the rules effectiveness a bit, but it's
clearly taking out most of the FPs as well.

Since the existing rule is excessively punishing legitimate domains in Germany,
I suggest we switch to Sidney's version if we're going to keep this rule.

http://ruleqa.spamassassin.org/20081029-<a 
href="https://svn.apache.org/viewcvs.cgi?view=rev&rev=708834";>r708834</a>-n/T_SIDNEY_FROM_DOMAIN_NOVOWEL/detail


http://ruleqa.spamassassin.org/20081029-<a 
href="https://svn.apache.org/viewcvs.cgi?view=rev&rev=708834";>r708834</a>-n/FROM_DOMAIN_NOVOWEL/detail


At the very least, if we don't do this, we should push Justin's rescore of 0.5
out over sa-update. These rules hit way too little spam and have *WAY* to high
a S/O to justify their high scores.

This bug has been open for a shamefully long period of time for a bug that's
causing FPs of 5.9 for legitimate domains. Let's try to get moving on this one.


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