On Sun, 23 Mar 2003, Declan McCullagh wrote:

> On Sat, Mar 22, 2003 at 03:21:46PM -0600, J.A. Terranson wrote:
> > To date, my personal pet has been payment in computationally intensive
> > solutions to questions posed by the recipient.  This forced expenditure of
> > effort, even if minor, removes the spammer's incentive for sending of
> > email: the nature of the beast requires that the spam run be high volume and
> 
> That's one of the more interesting ideas, IMHO, but I haven't seen a
> good system yet that would automatically exempt mailing lists to which
> you voluntarily subscribe. Not spam, but real
> majorodomo/etc. lists. Perhaps this intelligence needs to be embedded
> into the mail client.

The providing of a token allowing computationally-free passage to verified
subscribers is trivial to implement.  

It is vital, IMHO, that the implementation be done at the SMTP level, and not
at the client (POP3/IMAP/whatever). 

-- 
Yours, 
J.A. Terranson
[EMAIL PROTECTED]




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