[hashcash] Re: PR Problem?

On Sun, Nov 12, 2006 at 06:15:14PM -0500, Eric S. Johansson wrote:

> mailing lists.  New users get stamps for the first message (or two)
> then they are white listed and they never get stamps from that point
> on.

I'm not sure I see the logic of this behavior. My point was that a
mailing list that provided stamps for outgoing messages (not requiring
them for posting)--or better yet passing on MUA-minted stamps--might be
a good way to prevent listmail from getting caught up in someone's
filters.

If you are filtering based on the existence of hashcash headers, you do
*not* want to stop receiving hashcash headers unless your filtering
pipeline is smart enough to handle whitelists. Maybe yours does, but I
think it would be unwise to assume that's the default behavior for most
MDA pipelines.

If bogofilter (to pick one example) learns that hashcash headers are a
good indication of ham, a sudden lack of hashcash headers would tend to
make the mails look like spam. Q.E.D.

-- 
Unabashedly littering the information superhighway with detritus like
this for over 15 years now.

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