Hi Will... iPhone users by chance?
After a long series of tests, getting more people involved, and digging
deeper yet, we think we have a handle on this. No particular fix however this
is what has been sent to our end users: (thanks to our guy Derik... I think
I'm useless anymore)
Also see:
http://discussions.apple.com/thread.jspa?threadID=2059022&start=15&tstart=0
Anyway... hope this helps:
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Subject: iPhone/Exchange Bug
iPhone Users,
We have identified an annoying bug that affects iPhone users when creating
new appointments in Outlook. The bug seems to happen when a iPhone user
creates a appointment in Outlook and includes themselves as an attendee,
often because of a distribution group.
Scenario:
1. iPhone user creates a new appointment in Outlook and uses a distribution
group as an attendee; the meeting organizer (iPhone user) is also part of the
distribution group.
2. Meeting organizer sends the appointment from Outlook.
3. An attendee accepts the appointment request.
4. The organizer receives the response from the attendee and deletes it from
their inbox.
5. A meeting request update is sent out to all attendee’s of the meeting.
6. The scenario repeats itself and continues to send out meeting updates.
Solution:
When creating a new appointment in Outlook, do not include yourself as an
attendee. If you are using a distribution group to invite others, expand that
group and remove yourself as an attendee. Until Apple or Microsoft release a
fix for this problem, this appears to be the only solution.