[CalendarServer-users] Outbound email invitations

Morgen Sagen sagen at apple.com
Sat Nov 19 19:59:59 PST 2016

> On Nov 19, 2016, at 7:04 PM, Ian Baker <idbaker at gmail.com> wrote:
> Hello,
> We’re using CalendarServer via macOS Server.app v5.2.
> Unfortunately, we’re having problems with calendar event invitations sent to external users via email.  We have the com.apple.calendarserver user configured in the Calendar preferences, but when the outbound invitation mail is sent, the log reports authentication issues. There is a mismatch between the password configured for the com.apple.calendarserver system user, and that entered in the Server.app preferences.
> How does one modify the password for the com.apple.calendarserver system user, so that we can coordinate the two?

There are two keychain items in play here.  One is labeled “com.apple.servermgr_calendar" and it always stores the local com.apple.calendarserver account password.  The other is labeled “icalserver.invitations” and it stores the password for whatever IMAP/SMTP account(s) you are using.  Normally that account is also com.apple.calendarserver, but it may be different if the admin has chosen to use an external mail service.

So you want to open the Keychain Access app and find the com.apple.servermgr_calendar item.  It should contain the com.apple.calendarserver password.  Copy that password and paste it into Server.app’s “Edit invitation settings” dialog, thereby updating “icalserver.invitations” item.

If things are really out of sync and the com.apple.servermgr_calendar keychain item password does not match the com.apple.calendarserver user’s actual password (because perhaps someone changed it), you can delete that com.apple.servermgr_calendar keychain item, and then stop/start the calendar service — it will detect the missing keychain item, generate a new random password, assign it to the user and stick it in the com.apple.servermgr_calendar keychain item.  It would be up to you to then copy that into the Edit invitation settings.

Hope that helps,

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