On Sun, Sep 12, 2004 at 11:27:20PM -0700, Robert Spier wrote:
> > Anyone done any work (or thinking) about supporting hashcash [1] support 
> > to qpsmtpd? Validation is included in SpamAssassin 3 - is there any value
> > in a qpsmtpd validation plugin as well? An outward minting plugin would 
> > also be nice, at least for small-medium sites.
> 
> This made me do the math.
> 
> 0.02% of my past few months of email were tagged with hashcash.
> (Barely enough messages to count on fingers and toes, and most of them
> from the same source.)  Actually, it's less than that, more like
> 0.01%, because a bunch of those messages have multiple recipients.
> 
> I'd say it isn't worth it right now.  In the short term, SpamAssassin
> will handle it.  In the longer term, we can add it.   (Of course, it
> looks like it's pretty easy to implement... but that doesn't mean its
> worth it.)

Sure. But it's a bootstrap paradox, of course - no one supports it because 
no one is using it, which they can't do till someone supports it ...
But with SA 3 not too far away, there's going to be lots and lots of people
able to validate it Real Soon Now, so I was thinking it might be able to
try it out. This is one of the best things about qpsmtpd, I think - its 
fantastic for prototyping new ideas and seeing whether they've got any 
value.

> On the outward side... that seems quite out of place for qpsmtpd,
> although I could understand if you're using it for relay.  Seems more
> like it should be part of qmail-send or such though.

Yep, I'm using it for relaying too. qpsmtpd seems a much better place to
do it than 10 different MUAs, though. :-)

Cheers,
Gavin

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