Question : Meeting request change delayed (4.4.7) when sending to more than one outside recipient

Hello,

Meeting requests changes are delayed when sending to multiple outside recipients. Sometimes they receive
and accept the request and later I get the Delivery Status Notification (Delay) message. This is happening to different domains. Emails and meeting requests are going through to all recipients, including those involved in the meeting request change.

Does anyone know about any incompatibility between Outlook 2007 and Exchange 2003 that could the issue?
 

Answer : Meeting request change delayed (4.4.7) when sending to more than one outside recipient

I have found the solution to my problem:

Outlook 2003 change meeting requests work with Exchange 2003 SP2 server.
Oulook 2007 change meeting requests do not work with Exchange 2003 SP2 server. A Microsoft Hotfix is needed.

Please see the following links to solve your issue:

http://social.technet.microsoft.com/forums/en-US/exchangesvrgeneral/thread/c8abe44c-460a-4d0b-b552-77d92723e9ea/

http://support.microsoft.com/kb/938650  - this is Microsoft Hotfix information