Public folder accessable from Outlook 2007, 2010, but not through OWA

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I finished setting up our first E2K10 server, all PF are left on 2007 server, I don't want to move it yet before finding it absolutelyy nessasary and making sure it will not break the access from Outlook 200 / 2003 clients.

I logged on to mailbox by the following three ways: Outlook 2007, Outlook 2010, OWA.

Accessing the PF were find through two versions of Outlook, but it shows this under OWA.

The publich folder you're trying to access couldn't be found. If the
problem continues, contact your helpdesk and tell them the
following: The public folder couldn't be found because there is no
Exchange 2010 public folder server.

Steve Goodman


You need to add a public folder database and ideally configure PF replication on an Exchange 2010 server, then assign it to the Exchange 2010 databases. You don't need to move the public folders yet, you can just configure replication from an Exchange 2007 public folder database, e.g:

AddReplicaToPFRecursive.ps1 –Server EXCH01
–TopPublicFolder –ServerToAdd EXCH02

After you create the Public Folder DB and setup replication it won't automatically be in use by any clients. You need to alter each relevant (i.e. Exchange 2010) Mailbox DB to have the Exchange 2010 Public Folder DB set. Before doing this, you can setup a test Mailbox DB and set that database to use the new Public Folder DB, move a test mailbox to it, and check everything works OK.


Steve Goodman
Check out my Blog for more Exchange info or find me on Twitter


Please check the “MSExchOwningPFTree” attribute on the public folder database via ADSI Editor, incorrect value will cause the same issue

The correct value should be the “Distinguished Name” of “CN=Public Folders” entry in the ”CN=Folder Hierarchies” folder

a. Start->Run->ADSIEdit.msc

b. Expand “Configuration”->”CN= Configuration,DC=DomainName,DC=Com”->”CN=Services”->”CN=Microsoft Exchange”->”CN=OrgName”->”CN=Exchange Administrative Groups”->”CN=AdministrativeGroupName”->”CN=Folder Hierarchies”


The public folder couldn"t be found because there is no exchange 2010 public folder server

James Luo




Thanks for following up. What you suggested might not be my case, because I DID NOT have a public folder database present.

I just created one but I need to figure out how to setup replication in EMC, or read more to do it in shell.

It's Friday afternoon so I will update more next week.


Hi James,

Any update on this?

I have migrated 4 mailboxes to Exchange 2010 (from Exchange 2003)..

Outlook 2007 and Outlook 2010 show the Puvlic Folder folders and content, whereas in OWApp, only the folders are displayed on the left, but content cannot be displayed for the same folder...
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