Re: murphy is listed on spamcop
On Friday 07 January 2005 10:03, Thomas Bushnell BSG <tb@becket.net> wrote:
> Russell Coker <russell@coker.com.au> writes:
> > The problem with spam filtering is that it's always a matter of
> > trade-offs. If there is too much spam then when deleting all the spam you
> > will accidentally delete some non-spam.
>
> Yes, but you have to actually describe the trade-offs, and
> importantly, who the trade-offs effect and what they can do to fix
> problems.
I described the trade-offs of spamcop earlier in this thread.
> Also important is who is making the trade-offs, and on behalf of
> whom. When the costs get shunted on to other people, and you capture
> all the benefits yourself, it's very easy to assume the trade-offs
> must be worth it. Much different is if you have a system where you
> need the consent of those other people before you start trading them
> off!
I think we all agree that challenge-response systems are wrong. CR systems
are the only ones that force all the costs on other people.
There is some minor inconvenience to sender when a message is rejected due to
the spamcop DNSBL, but that falls into one of two categories:
1) The ISP is generally good, in which case the problem is already fixed and
after a short timeout (often 24 hours) the message can be re-sent and will go
through. In most cases this means that as soon as the sender is aware of the
problem they can re-send successfully.
2) The ISP takes no action about spam. In this case I don't want to receive
email from that ISP. Also other anti-spam systems will block the ISP so it's
not a spamcop issue.
I don't believe that there is any serious problem here. I correspond via
email regularly with many people and don't get any complaints. When
something does go wrong then they complain fast enough (when something
trivial happens such as a lack of disk space causing 45x errors I get
complains very quickly).
--
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