[CalendarServer-users] Calendar attendees

Andre LaBranche dre at apple.com
Thu Apr 25 13:22:19 PDT 2013

On Apr 25, 2013, at 12:24 PM, Pascal Dallaire <pascaldallaire at cre-gim.net> wrote:

> Hi to everyone on the list,
> After having a lot of problems with the Calendar server that comes with OSX Server, we setup one using the latest release (4.2) and our own XML Directory and it seems to be going well. We wondered about a problem a lot of users have. When adding attendees to an event, iCal or Calendar offers people that are in their local AddressBook or in their "Previous recipients" list, and several of those people are not included in the Calendar Server. Is it possible to setup iCal or Calendar (using maybe a hidden setting in a plist) to only propose people from the Calendar Server, not their own local users??

The selection of invitees is 100% up to the client. The client has to support attendees that don't exist on the server, since that's a common case - for example, when using email-based invitations. The server does perform real-time suggestions and auto-completion of principal names against the server's directory data when adding invitees, however it's up to the user to choose one of those or a result from a local Address Book, or neither (e.g. a manually typed email address). Look at the icons adjacent to the auto-completed names to get a clue about what kind of entity it is. If the free/busy icon is a gray checkmark or circle-slash, it's a CalDAV attendee (because the free/busy lookup succeeded). If it's a "!" it's probably not a CalDAV attendee (or the client can't do a free/busy lookup against your server for whatever reason).

I guess the question is: why are users selecting invitees that don't exist on the server? If they really are intending to invite those people, then you could turn on iMIP to allow those invitations to succeed, by sending an email-based invitation. If the attendees are being selected by accident, maybe teach the users to pay attention to the free/busy status when they are adding attendees... I'm not aware of a way to disable non-CalDAV attendees in iCal / Calendar.app.

Please file bugs and / or enhancement requests - every vote counts :)

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