Re: Every spam is sacred
On Sat, 14 Jun 2003 12:57:46 +0200 (CEST), Santiago Vila <sanvila@unex.es> said:
> Mathieu Roy wrote:
>> > IMHO, the best of both worlds is blocking the *completely*
>> > obvious spam (open relays, etc. like the DSBL does) and filtering
>> > the rest.
>>
>> A message sent via these bad ISP is a "completely obvious spam"? I
>> would be happy to share this simplistic approach.
> You are the one being simplistic.
How so? An open relay is a configuration that may be conducive
to spam, but it does not follow that every message that comes from an
open relay is spam.
> Please go to http://dsbl.org and read about it.
>> But people cannot always select by themselves their tools (employee
>> in a company... etc ; see the example below). Usually, they can at
>> their option use hotmail (woaw, what a recommendation) or
>> yahoo. But it's a workaround.
>>
>> A workaround for the problem this policy creates: at the contrary
>> of what you said, you rarely can say whether a mail is spam or not
>> just with an IP.
> For some IPs, yes, I can, with 99.95% of confidence.
Firstly, that is a statistical project based on a limited
number of surveys, and may not truly represent the distribution of
spam and ham at any given IP address in the RBL.
Secondly, the threshold may well be different for everyone, so
just because you are comfortable does not mean others are.
manoj
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Manoj Srivastava <srivasta@debian.org> <http://www.debian.org/%7Esrivasta/>
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