Public folders not replicating betwen exchange 2007 and 2010

Hi All,

I have a lab setup with a Windows 2008 AD domain, Exchange 2007 server (SP2 on Windows 2008) and Exchange 2010 RTM on Windows 2008 R2.  The domain was originally a Windows 2003 domain, with Exchange 2003 and was upgraded / migrated - the Ex2003 server is long gone.

I have a problem that the public folders are not replicating between Ex2007 and Ex2010.  I'm testing out migration scenarios for a client, which has Outlook 2003 clients, so I need to consider public folders for Offline address book / Free/busy etc.

The public folder hierarcy is not even replicating.  On the Exchage 2007 server, "get-publicfolder \non_ipm_subtree -recurse" shows:

Name                                                        Parent Path
----                                                        -----------
NON_IPM_SUBTREE
EFORMS REGISTRY                                             \NON_IPM_SUBTREE
Organizational Forms Library (English - NZ)                 \NON_IPM_SUBTREE\EFORMS REGISTRY
Organizational Forms Library (English - USA)                \NON_IPM_SUBTREE\EFORMS REGISTRY
Events Root                                                 \NON_IPM_SUBTREE
OFFLINE ADDRESS BOOK                                        \NON_IPM_SUBTREE
/o=Org/cn=addrlists/cn=oabs/cn=Default Offline A... \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK
OAB Version 2                                               \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK\/o=Org/cn=...
OAB Version 3a                                              \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK\/o=Org/cn=...
OAB Version 4                                               \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK\/o=Org/cn=...
EX:/o=Org/ou=Exchange Administrative Group (FYDI... \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK
EX:/o=Org/ou=First Administrative Group             \NON_IPM_SUBTREE\OFFLINE ADDRESS BOOK
OWAScratchPad{7C986FF7-B38F-4AB0-B094-7DC5FB97B3AF}         \NON_IPM_SUBTREE
OWAScratchPad{811C116A-ED14-4784-9F12-07C70E6369BB}         \NON_IPM_SUBTREE
SCHEDULE+ FREE BUSY                                         \NON_IPM_SUBTREE
EX:/o=Org/ou=Exchange Administrative Group (FYDI... \NON_IPM_SUBTREE\SCHEDULE+ FREE BUSY
EX:/o=Org/ou=First Administrative Group             \NON_IPM_SUBTREE\SCHEDULE+ FREE BUSY
schema-root                                                 \NON_IPM_SUBTREE
Default                                                     \NON_IPM_SUBTREE\schema-root
microsoft                                                   \NON_IPM_SUBTREE\schema-root
exchangeV1                                                  \NON_IPM_SUBTREE\schema-root\microsoft
StoreEvents{7C986FF7-B38F-4AB0-B094-7DC5FB97B3AF}           \NON_IPM_SUBTREE
globalevents                                                \NON_IPM_SUBTREE\StoreEvents{7C986FF7-B38F-4AB0-B094-7DC...
internal                                                    \NON_IPM_SUBTREE\StoreEvents{7C986FF7-B38F-4AB0-B094-7DC...
StoreEvents{811C116A-ED14-4784-9F12-07C70E6369BB}           \NON_IPM_SUBTREE
globalevents                                                \NON_IPM_SUBTREE\StoreEvents{811C116A-ED14-4784-9F12-07C...
internal                                                    \NON_IPM_SUBTREE\StoreEvents{811C116A-ED14-4784-9F12-07C...

But on the Ex2010 server, all I get is:

Name                                                        Parent Path
----                                                        -----------
NON_IPM_SUBTREE
EFORMS REGISTRY                                             \NON_IPM_SUBTREE
OFFLINE ADDRESS BOOK                                        \NON_IPM_SUBTREE
SCHEDULE+ FREE BUSY                                         \NON_IPM_SUBTREE


If I run "update-publicfolderhierarcy -server ex2007" on the ex2010 server, the ex2010 server shows the following in the event log:

Log Name:      Application
Source:        MSExchange Store Driver
Date:          29/11/2009 8:56:55 p.m.
Event ID:      1020
Task Category: MSExchangeStoreDriver
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      EX2010.domain.local
Description:
The store driver couldn't deliver the public folder replication message "Status Request (PublicFolderDatabase@domain.local)" because the following error occurred: The Active Directory user wasn't found..
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange Store Driver" />
    <EventID Qualifiers="49156">1020</EventID>
    <Level>2</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2009-11-29T07:56:55.000000000Z" />
    <EventRecordID>7451</EventRecordID>
    <Channel>Application</Channel>
    <Computer>ex2010.domain.local</Computer>
    <Security />
  </System>
  <EventData>
    <Data>"Status Request (PublicFolderDatabase@domain.local)"</Data>
    <Data>The Active Directory user wasn't found.</Data>
  </EventData>
</Event>

I have checked the proxyaddresses attribute on the publicfolderdatase object and the email address is definitely correct.

I have seen another reference to the same issue here: http://get-exchange.blogspot.com/2009/11/public-folder-mayhem-exchange-2010.html but there doesn't seem to be a fix or workaround anywhere.

Any help would be much appreciated.

Thanks



Martin