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Public folder permissions fail in Exchange mixed mode

Public folder permissions don't work in your Exchange 2000/2003 mixed mode environment? Find out how you can resolve this public folder permissions problem.

I recently added an Exchange 2003 server into an environment with an Exchange 2000 server (first server for some years). I then migrated the mailboxes to the new Exchange 2003 server using the Move Mailbox Wizard. The public folders are still on the Exchange 2000 server. I am pointing the public folder store on Exchange 2003 to the original folders on the Exchange 2000 server.

Since the mailbox migration, some users can't move items from their mailboxes to the public folders. Users have implied or explicit permissions and publishing editor rights for the public folders. I have pushed these permissions out again to update any old records stored. I still can't get the users to move items from their mailboxes to the public folders. Did Exchange 2003 recently add any security layers that may be causing these issues? Do you have any insights on this problem?

I'd like to know more about how you got to Exchange 2000 Server. Did you upgrade from Exchange 5.5? Is the Exchange organization still in mixed mode? If so, there are a variety of permission issues that could stem from either an Exchange Server upgrade and/or an Exchange mixed mode environment.

The biggest permission model change for public folders, in the default installation of Exchange 2003, was the removal of the Anonymous permissions to create top-level public folders. Exchange Server 2003 retains the same public folders permissions model as Exchange 2000. Your users should be able to access the public folders on Exchange 2000 even if their mailboxes are on Exchange 2003.

The first thing I would do is replicate one of the Exchange 2000 public folders to the Exchange 2003 server. If that fixes the problem then go ahead and replicate the other public folders. You'll need to replicate all the public folders before you'll be able to decommission the Exchange 2000 server, which you'll want to do at some point anyway.

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Related information from SearchExchange.com:

  • Tip: Permissions and 'mixed mode' don't always mix
  • Tutorial: Exchange Server public folder permissions
  • Tutorial: Exchange public folder replication
  • Expert Advice: Move an Exchange public folder replica to another server
  • Reference Center: Exchange Server permissions tips and resources
  • Dig Deeper on Exchange Server setup and troubleshooting

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