I am migrating from Exchange 2003 to 2007 and I have moved all mailboxes to the new Exchange server but I have a problem with the Public Folders. I have replicated all Public Folders from the Exchange 2003 box to 2007 and have now removed the Exchange 2003 replicas. All of my clients are Outlook 2003 and when I dismount the Public Folder store on 2003, my clients are no longer able to connect to the Public Folders which also affects free/busy data. If I mount the 2003 Public Folder store, the clients can access the folders again.
Any suggestions would be greatly appreciated.