Ralf wrote:

> hy @all,
> the task is to increase the spam recognition level - most mail that is
> spam only reaches 3.5 to 3.7. I could set the tag level in amavisd-new
> conf to the value, but in order to have a better understanding, I would
> like to know, if I should tighten the screw within amavisd-new or within
> sa. How important is it to use for example Bayes? Are there any other
> possibilities?

> Am Freitag, den 01.09.2006, 10:10 +0200 schrieb Matthias Haegele:

>> I recently tested rules_du_jour [2] from:
>> SARE Rulesemperorior Webpage[1]

> hm, i am going to evaluate this. Nevertheless I was thinking, that it
> should be enough to use sa and/or amavisd-new. I wanted to spare myself
> from another konfig-file.

>> 
>> It proved to be really useful for me since it pushes spam over the 
>> "quarantine level", so far i had no false positives.
>> You should test it before implementing and read carefully through the 
>> instructions on the webpage (the PRE Rules are only for SA prior to 3.0 
>> etc.) .
>> 
>> btw: (My "spam policy" is rather aggressive it is better for me to 
>> "lose" some "legitime mail" than getting spam through, this might be 
>> completely different for you ...)

> Actually it isn't (or, I wouldn't like it to be). Since spam is
> discarded and at the same time put into spambobs mailbox, I can see, if
> there are any false positives. So that's okay for me.
> thanks, ralf.
>> 

>> Greetings, hth
>> MH
>> 
>> [1] http://www.rulesemporium.com/rules.htm
>> [2] http://www.exit0.us/index.php?pagename=RulesDuJour
>>

Use the latest version of spamassassin, 3.0.x is now way behind IMHO.
Use sa-update.
A patch for amavisd-new may be needed so it finds the new rules:
http://www200.pair.com/mecham/spam/p3.txt

Consider FuzzyOcr and ImageInfo plugins:
http://www200.pair.com/mecham/spam/image_spam.html
https://secure.renaissoft.com/maia/wiki/FuzzyOCR23
http://www.rulesemporium.com/plugins.htm

Make sure network tests are enabled:
$sa_local_tests_only = 0;
Use Bayes
Use Razor and DCC and Pyzor (with Pyzor I suggest changing the server)
http://marc.theaimsgroup.com/?l=spamassassin-users&m=114956889224487&w=2

I also use:
http://marc.theaimsgroup.com/?l=spamassassin-users&m=115637139728022&w=2

Use a local caching name server - it can help considerably with network
tests.

To see if anything is going on as far as net tests go, you can break out
debugging info and try stuff like:
spamassassin --lint --debug area=1,dns

Here you would want to see:
  dbg: dns: is Net::DNS::Resolver available? yes

spamassassin --lint --debug area=1,uri
spamassassin --lint --debug area=1,razor2
spamassassin --lint --debug area=1,dcc
spamassassin --lint --debug area=1,pyzor

Assuming you are using a recent version of amavisd-new, consider setting
up p0f (but I set my scores much lower than what is in the
documenation). Search the archives and RELEASE_NOTES for p0f
for instructions.

Make sure trusted/internal networks is set up properly:
http://www.freespamfilter.org/forum/viewtopic.php?t=309

I have done all these things, and even with lowering the scores in
the plugins and I have never had less spam in my inbox (and my
kill_level is set to 8.0). It scares me sometimes.

Gary V


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