Best asked in an Exchange group as OWA is a part of Exchange, not Outlook.

microsoft.public.exchange.clients would be the best place to start.

--
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact. All
unsolicited mail sent to my personal account will be deleted without
reading.

After furious head scratching, dmp asked:

| I have an account that is being used OWA to view a calendar. The
| people that modify the calendar are specifically added on the
| permissions for that calendar. Is there a way to keep the owner of
| the mailbox from modifying the calendar?