We upgraded our office from Office 2003 to Office 2007. When someone tried to modify or cancel meeting/appointment externally they get NDR 4.4.7 Your message did not reach some or all of the intended recipients. The following recipient(s) cannot be reached: Could not deliver the message in the time limit specified. Please retry or contact your administrator. #4.4.7>

Hi If we should be able to help you, please provide information about server version and exactly error messages etc. Give us all information that could be of any valueJonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Thanks Jonas, Here is the information below: Server OS : Windows 2003 Enterprise SP2 Exchange 2003 SP2 (Build 7638.2) Happens when a meeting is updated or cancelled the event viewer log: The following call : EcGetMime to the store failed. Error code : -2147467259. MDB : d9d6db07-21d4-45aa-a446-bcaa0de76e24. FID : 1-31. MID : 1-F1EF15. File : . The NDR the end user gets that updated/cancelled the meeting” From: System Administrator Sent: Wednesday, July 28, 2010 10:19 AM To: Subject: Undeliverable: Delivery Status Notification (Failure) Your message did not reach some or all of the intended recipients. Subject: Canceled: The following recipient(s) cannot be reached: '' on 7/28/2010 10:19 AM Could not deliver the message in the time limit specified. Please retry or contact your administrator. < #4.4.7>