Kee Hinckley <nazgul(_at_)somewhere(_dot_)com> wrote:
Badly. That's their problem.
No, it's our problem. If it were really truly their problem, then we
would have all deployed "must have a reverse lookup" filters.
I disagree. Many people have chosen to deploy reverse lookup
filters. I believe that the reasons why they haven't been more widely
deployed are at least in part due to the problems they have, in
attempting to discover "implicit" consent. As Hadmut noted, that
process has high failure rates, and thus has lower incentive for
deployment.
If they don't implement something, and therefore they get more
spam--that's fine. But if they don't implement it and therefore we
don't get their email--that's a problem. Needless to say, this ties
into the whole issue of incentives.
I agree.
But I'll bet that for most domains, incoming email is NOT
distributed evenly over all other domains. This means that small
deployment may have large benefits, and alternately, whitelists can
be helpful when talking to sites which haven't deployed a proposal.
Alan DeKok.
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