Hello Spiceheads,
One of our users tried to delete an instance of a meeting in Outlook, but the email that should have sent to the other members of the calendar meeting bounced back. We tracked the source of this down to the fact that the meeting was set upbefore our staged migration to O365, and was transferred as is during the migration, so the email addresses for the users in the meeting reflect the old on-premise email addresses (that are no longer in use)for those users, not the current O365 ones. So when the meeting close notification tries to send to it sends to the old on-premise email addresses and as a result bounces back, only deleting the meeting from the calendar of the user that made the delete action, not the other meeting members too.
What I'd like to know is; do any of you know of a way to edit the email addresses...