Have a user who is using Outlook 2010 on their Mac for office work and it's been continuously sending an automated email for accepting an invite to a calendar meeting for a couple of weeks now.
I have found a number of instances of this just by searching but the closest thing to a solution I have found are suggested workarounds involving using the OWA.
To anyone considering linking Outlook 2010 inbox is spammed with meeting acceptances I have access to the Exchange.