Homepage: https://www.gnu.org/software/emacs
Add hashcash payments to email
The hashcash binary is at http://www.hashcash.org/. Call mail-add-payment to add a hashcash payment to a mail message in the current buffer. Call mail-add-payment-async after writing the addresses but before writing the mail to start calculating the hashcash payment asynchronously. The easiest way to do this automatically for all outgoing mail is to set `message-generate-hashcash' to t. If you want more control, try the following hooks. To automatically add payments to all outgoing mail when sending: (add-hook 'message-send-hook 'mail-add-payment) To start calculations automatically when addresses are prefilled: (add-hook 'message-setup-hook 'mail-add-payment-async) To check whether calculations are done before sending: (add-hook 'message-send-hook 'hashcash-wait-or-cancel)