Recently one of our users has begun receiving appointment requests from an external user (no idea what their calendaring client is). No complaints there: the appointment is added to the user's calendar as expected.
The unexpected part is the appointment being added to the calendar of our pseudo-catchall address. I say "pseudo" because rather than configuring postfix to dump a copy of all incoming mails into a single account, we've added a hidden bcc to all accounts that forwards a copy to the catchall.
So is this the expected behavior? Should events be added to an account's calendar on receipt, even if it wasn't originally addressed to that account (i.e. not in the Attendees list)? I don't know whether to consider this a bug or just a misconfiguration.
On a side note: since calendar appointments appear to be email messages with special information in them, is there a way to do a "View Original" on appointments to see the header information?