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I ran into a real head scratcher this week.  While migrating a very public folder dependant organization, I couldn’t access public folders through OWA.  I had full public folder functionality in the Outlook client, only OWA was affected.  The environment was still in a hybrid state with production Exchange 2003 servers in the organization as well as DR servers which were using a third party replication package.  The exact error I was getting looked like this:

 

image

 

 

 

 

 

 

 

I had already established all 2010 and 2003 mailbox servers as replicas of both the system folders and public folder hierarchy.  I was also able to confirm replication was working by using:
 

 

[PS] C:\>PublicFolderStatistics –server servername


All my folders showed the correct number of items, so my content was replicating.

 

I also verified that my 2010 databases were pointed to the correct public folder database on the Client tab of the database properties.

image

 

 

 

 

 

 

 

NOTE:  Exchange 2010 Outlook Web App cannot proxy to a 2003 public folder database and needs a replica on a 2010 server.

 

I also came across this article that had me check the replication limits set against the public folder databases on 2003 side.  Again everything configured correctly.

 

After scouring the blogsphere for the better part of the day, I finally gave in, swallowed my pride,  and called MS support.   The MS engineer had me again check all the above.  He also had me start checking the MsExchOwningPFTree attribute in ADSIEdit on the public folder databases on the 2003 side.   The databases on my two production 2003 servers had this attribute set correctly.  On a whim, I decided to check this attribute on the 2 DR servers as well.  These servers aren’t really in production but are mimics of the production servers.  However they do each show an unmounted public folder databases as far as Exchange is concerned.  Sure enough, the DR Mimics’ public folder databases did not have the attribute set.  After setting this attribute and forcing active directory replication everything functioned correctly.

 

The value of MsExchOwningPFTree should be set to the public folder hierarchy:

CN=Public Folders,CN=Folder Hierarchies,CN=Administrative Group,CN=Administrative Groups,CN=Organization,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=local

Where Administrative Group and Organization are the names of your 2003 Administrative Group and your Exchange organization.
Posted on Tuesday, October 19, 2010 7:40 PM MS Exchange 2010 | Back to top


Comments on this post: Exchange 2010 OWA and Public Folders

# re: Exchange 2010 OWA and Public Folders
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Good Catch!

Can you post the name of the Third Party software?
Left by Daniel on Nov 09, 2010 11:05 PM

# re: Exchange 2010 OWA and Public Folders
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Daniel, The third party software was Doubletake
Left by Ryan Roussel on Dec 22, 2010 10:49 AM

# re: Exchange 2010 OWA and Public Folders
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I'm having the same issues as you are having, but when I use adsiedit I don't see an entry for MsExchOwningPFTree on any of my exchange servers? I also am using doubletake.
Left by gazem on Feb 16, 2011 8:52 AM

# re: Exchange 2010 OWA and Public Folders
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Sorry, I was looking in the wrong place. I made the change and now my OWA public folders work! Thanks
Left by gazem on Feb 16, 2011 9:07 AM

# re: Exchange 2010 OWA and Public Folders
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Worked like a charm. thankyou :)
Left by WJE on Mar 11, 2011 6:49 AM

# re: Exchange 2010 OWA and Public Folders
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Thank you.

That fixed my issue as well.

The customer I was doing this work for was also using DoubleTake, and the setting was blank on the "DR server".

Thanks again.
Left by Ron Bertino on Mar 16, 2011 6:50 PM

# re: Exchange 2010 OWA and Public Folders
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Thanks - after 2 days of head scratching this solved my problem exactly :)
Left by Andy on Apr 12, 2011 8:40 AM

# re: Exchange 2010 OWA and Public Folders
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THANK YOU!!!
Left by Alex on Nov 04, 2011 11:27 AM

# re: Exchange 2010 OWA and Public Folders
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A client had the same issue. There was nothing wrong with the E2010 deployment, but they suspected that there was. After many hours of research and imperical testing, I found this article. I thought it was a bit strange but I didn't want to call PSS so I examined the legacy system. Sure enough, not all legacy PF DBs had this attribute populated, which I addressed and after AD replication OWA could not see the PFs on the E2010 side. Thank you!
Left by Dave Fedko on Dec 24, 2011 12:10 PM

# re: Exchange 2010 OWA and Public Folders
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You are the man! Thanks for sharing this solution. I've been stumped on this problem for the last week. We also have 2 servers running Double-Take for Exchange 2003 and your posted solution worked perfectly.
Left by Exchange on Jan 24, 2012 9:10 AM

# re: Exchange 2010 OWA and Public Folders
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Thanks for this, was banging my head over this. again useing Doubletake to a DR site
Left by Eddie Gorman on Apr 26, 2012 5:32 AM

# re: Exchange 2010 OWA and Public Folders
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Yup doubletake for us also.The recovery server attribute was blank.
Left by Paul Scott on Jan 24, 2013 10:30 AM

# re: Exchange 2010 OWA and Public Folders
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We did have a problem with this. Right away emails started queuing to the recovery dbltake server for mail enabled public folders.
Left by Paul Scott on Jan 24, 2013 3:28 PM

# re: Exchange 2010 OWA and Public Folders
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I don't see MsExchOwningPFTree on the Exchange 2003 server in ADSI. Am I missing something? I can navigate all the way down to Folder Hierarchies--CN=Public Folders...but that attribute just isn't listed.
Left by Matt on Jan 25, 2013 3:30 PM

# re: Exchange 2010 OWA and Public Folders
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Been looking everywhere for a solution. Who would have thought that it was the offline public folder copies created by DoubleTake. Thanks so much for posting this solution, you really helped me!
Left by Mike on May 06, 2013 8:45 PM

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