what is a carddav account
Q: What is a cardDav account. by MrHoffman, CardDAV is a collection of standard formats and a network protocol that allows a client (iOS or OS X) to access contact information - names, addresses, telephone numbers - stored on a server. In an OS X configuration, this is the Address Book app, and the Address Book Server on OS X Server. Depending on the particular context you're looking at, a CardDAV account is the credentials used to log in on and access the contact information on the remote CardDAV server.