Consider etesync, which offers client side encrypted Card/CalDAV. You can still ...

		postiecard on July 2, 2021 \| parent \| context \| favorite \| on: Purelymail – cheap, no-nonsense email Consider etesync, which offers client side encrypted Card/CalDAV. You can still use Purelymail for mail, and have your mail client provide a cohesive mail/contacts/calendar UI.