[hashcash] Re: Mutt and hashcash

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On Sun, Mar 07, 2004 at 09:36:07AM -0500, Adam Back wrote:
>That sounds like a quite portable way to do this, should work for many
>unix mailers.

That's the idea, but I haven't tested it with anything but Mutt and TMDA.
The code that looks at sendmail's arguments to try to understand the
envelope recipient(s) may have some problems.

>I'd be interested to try using it myself.  My only complication is I am
>using mutt on a machine where I am not root, and also I am not sure how
>long a process left running (the daemon) would last by itself.  Well in
>my case so far I was thinking of generating smaller stamps (eg 20 bits),
>so probably that wouldn't matter too much.  And I guess the daemon just
>leaves things in the queue if it hasn't processed them fully.

Yes, if it gets a signal it can catch, it restores the queue to a good
state before it croaks.  Somewhere on my to-do list is to set it up so that
I can run it from cron periodically.  I want it to realize when it's
already running and exit.  That way I can run it from cron and not have to
remember to restart it when the machine reboots.

>Please send the code!  Can you put it on the web?  (eg. As alpha/beta if
>you're still changing it).

It's here:

http://www.toehold.com/~kyle/hashcash/

There's just the code there, but it has some comments that I've tossed in
at the last minute.  Feedback welcome.
- -- 
Kyle Hasselbacher                  Stand for something
kyle@xxxxxxxxxxx                  or fall for anything.
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