I have installed an Exchange 2010 server in co-existance with Exchange 2003. Now all mailboxes are moved to the new server and replication of public folders is set up. Everything seems to work ok, BUT: Even if I have set up replication of public folders from the 2003-server to the 2010-servers it seems that the public-folder store on the Exchange 2003-server need to run. If I I dismount the store on the 2003-server I cannot access the public folders from Outlook. I have configured the client-settings i EMC on the new server to point at the new public-folder database. Any tips on this?