In <5B734AC36BC9714EB88451E6E2F043B1046EA2(_at_)alaia01(_dot_)alaia(_dot_)net>
Marc Alaia <marc(_at_)alaia(_dot_)net> writes:
In a world where SPF is normal, would it be unreasonable to challenge email
identified as spam (by a spam utility)?
My two objections to C/R systems are that they often send challenges
to people who had their email address forged and that they require
real people to jump through a hoop.
If, as you said, SPF has cleared the email address, then my first
objection has been solved.
If, as you said, a (good) spam filter to only send challenges to
spammy messages, then my second objection has been solved.
So, a C/R system that did both would be fine with me.
That said, I still don't have high hopes for C/R systems to be of any
use. Good spam filters reduce the volume of spam to a level that you
can process it by hand. (That is, ether delete it or file a LART.) A
challenge message has little benefit. (Much of what gets through
SpamAssassin is stuff that wouldn't happen if SPF was widely used.)
Secondly, by sending a challenge to a spammer, you are confirming your
email address as being live. This is a good reason to *not* use a C/R
system.
-wayne
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