PGP Messaging support with PIV Cards
Smartcards or Tokens are generally supported with PGP Messaging services within the PGP Desktop client, however PIV cards have been added to support only Whole Disk Encryption and some basic file authentication. It is not possible to use PIV cards to support Messaging.
A Feature Request has been created to incorporate this functionality and is currently being reviewed. Please subscribe to this article for any future updates on this functionality.