SpamAssassin Rule: HASHCASH_21

Standard description: Contains valid Hashcash token (21 bits)


The sender added a unique unspent Hashcash token to the message, indicating that it is unlikely to be bulk email

See HashCash.

Further Info

The default scores for this rule can be found in the online list of tests.


Rules/HASHCASH_21 (last edited 2012-04-28 01:47:09 by andrew2)