Mac users who choose to upgrade (or already have upgraded) to Mac OS Catalina (10.15.x) will need to uninstall all 3rd Party CAC enablers per AND reenable the built in smart card ability (very bottom of macuninstall link above)
You no longer use the Email certificate for Enterprise Email or any CAC enabled websites Bluetooth Dongle driver for RT-BT4 / RT-BT4B/RT-BT4Dīetween mid October 2019 and mid February 2020 everyone in the Army was migrated to use their PIV Authentication certificate for Email access.