I recently decided that I should start using GPG, primarily for signing messages (not encrypting them).  I'm looking at https://github.com/sup-heliotrope/sup/wiki/gpg , and while I think I've got everything set correctly, test messages aren't being signed.

# .sup/config.yaml
  1 ---
  2 :accounts:
  3   :default:
[...]
  9     :gpgkey: '58DAFDEB'
[...]

# .sup/hooks/crypto-mode.rb
 1 crypto_selector.set_to :sign

[$]> gem list | grep gpg
gpgme (2.0.5, 2.0.2)

and that should be it, right?  But when I send an email to myself, I don't get prompted for my GPG passphrase, and I don't see an .asc on the receiving side.

Any tips?  I'm using sup 0.15.4.

 - P