latest iOS 6 Outlook 2011 appointment confirmation

Hi everyone,

since we updated an iPhone from iOS5 to latest iOS6 we have issues with appointment when we confirm them on the iPhone. On the iPhone there is an Exchange Account configured. The user also uses a MacBook Pro with MacOS X 10.8 and Office 2011 SP2. When the user gets an appointment and he accept /decline it on the iPhone the calendarentry is set correctly on iPhone and Outlook. Unfortunally the appointment mail is still in the InBox from Outlook.

With iOS5 the appointment mail was deleted after it was accepted / declined. Also, if the exchange account is configured on a windows 7 / Outlook 2010 client, the mail is also successfully deleted.

Exchange 2010 SP1

MAC OS X 10.8 / Outlook 2011 SP2

iOS 6.x

-> appointment mail still exist after accept / decline on iPhone

Exchange 2010 SP1

MAC OS X 10.8 / Outlook 2011 SP2

iOS 5.x

-> appointment mail gets deleted after accept / decline on iPhone

Exchange 2010 SP1

Win7 / Outlook 2010

iOS 6.x

-> appointment mail gets deleted after accept / decline on iPhone

Exchange 2010 SP1

Win7 / Outlook 2010

iOS 6.x

-> appointment mail gets deleted after accept / decline on iPhone

Does somebody have the same problems. Help is much appreciated.