Hi
We are using Exchange 2010 SP3.
One of the users has set up a recurring calendar item and invited a few internal (on exchange) to the appointment.
The user can no longer send any changes despite being the owner of the calendar item for this calendar appointment.
when the user clicks on send update the error message below appears:
you do not have permissions required to send messages from this mailbox
The user has been added to have full permissions to their mailbox despite the Self permission already there, and the user has been added as owner to the permissions list of their calendar.
Any help would be appreciated.
Thank you.