Hannu <[EMAIL PROTECTED]> writes:

> Any plans to support hashcashed mails? Basic idea is a computed header 
> which is cpu-expensive to count, but very cheap to check.

You should be able to verify hashcash tokens in incoming mail with a
`pipe' incoming filter file rule.  For example:

# verify hashcash tokens in the X-Hashcash header field
pipe "formail -c -x X-Hashcash | hashcash -c -y -b16" accept

Make sure the 'formail' and 'hashcash' programs are in your system
$PATH, or else specify their full paths.  Season to taste.
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