Environment: Recently we built 2 new mailbox servers to replace our current mailbox servers. Exchange is installed on Windows Server 2008 R2 SP1 We've set the Genertion Server for the OAB to be the new server We've changed the client settings for the new databases to be the Public folder database on the new server. We've configured replication between the old public folder database and new database. We've migrated all users to the new mailbox servers. Problem: After a couple weeks of having a static environment we finally shutdown the 2 old mailbox servers. Now we're getting reports from users with a negative outlook experience Outlook will take 10-15 minutes to open Outlook will hang when browsing email, creating meetings, and other general calendar task. I see no errors on the servers or the clients. We've placed the users in online mode and back to cached mode Recreating the users profile doesn't fix the problem either. Any suggestions on this issue would be much appreciated.

Ed, Thank you for the assist. You were correct. I ran a powershell script to replicate all the public folders, but apparently only default public folders were copied and not system. Looks like the system folders had to be configured manually.