On Mon, 5 Jun 2017, John Hardin wrote:

On Tue, 6 Jun 2017, Sebastian Nielsen wrote:

 Which is the SpamAssasin accepted default format of the HashCash header?

 Im talking about the rules:

 Rules/HASHCASH_20 through Rules/HASHCASH_25 and Rules/HASHCASH_HIGH and
 Rules/HASHCASH_2SPEND?

 What I have understand, these rules are enabled in a default Spamassassin
 installation, but despite me of including a X-Hashcash: header in all my
 outgoing mails, the rule isn't triggered.

They are based on the hashcash plugin. If the hashcash plugin is not enabled, they will not be executed. I don't believe it is enabled by default - look in your v340.pre (et al) file in your config directory.

 Do the receiver server need a hashcash verifying program installed for
 hashcash to be enabled? (Can't SpamAssassin verify hashcash's itself?)

No, but the plugin does need to be enabled.

I suspect that hashcash never got enough traction for it to be enabled by default in SA. I doubt many sites will be performing hashcash checks.

...wait, it *is* listed in init.pre, so it looks like it *is* enabled by default - my bad.

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 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
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