Backfill Public Folders from Exchange 2010 to Exchange 2003

We had an issue where changes to public folder items on our Exchange 2010 server were being blocked from our Exchange 2003 server.  This issue has been corrected but I need to get all the missed changes moved over now.  If I do an Update Content on the Exchange 2010 side, it just does a backfill request for changes from the 2003 server and doesn't send anything.  If I try and do a Resend Changes from the 2003 server, I get an error about the Information Store not being available (which I assume is the 2003 System Manager not being able to communicate with Exchange 2010).  How do I get these changes moved from 2010 back to 2003?
CIPortAuthorityAsked:
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BusbarSolutions ArchitectCommented:
Hmmmm, one thought, can you remove 2010 and add it as replica.

I don't recall Exfolder, but does it has the functionality to send PF hierarchy and changes ?!
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Is teh Active PF on Exchange 2003 or 2010 ?
Which PF's are users accessing

- Rancy
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CIPortAuthorityAuthor Commented:
@busbar:  I didn't think of removing and re-adding the replicas... I will look in to that and the ExFolder tool.

@Rancy: active public folders are on both servers.  Some users are using the Exchange 2010 server and its public folders and some are using the Exchange 2003 server with its public folders.
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Thats an issues as i was thinking as if Exchange 2003 was Primary for PF we could have removed the Exchange 2010 PF and re-replicate .... but as it now seems is any new data in E2k3 is having issues getting to Exchange 2010 PF server

I would say we can try to push with PFDavAdmin or ModifyItems :)

- Rancy
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CIPortAuthorityAuthor Commented:
@Rancy:  The problem isn't from Exchange 2003 -> Exchange 2010 but the reverse.  New data in 2K3 was always propagating properly to 2K10 but new data in 2K10 was not going back to 2K3.  Technically then, the 2010 PFs are most current but I don't know if I can just delete the 2K3 PF database and recreate it from the 2K10 database.
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Yes you can but what is the amount of data as the PF replication totally works on the Replication partners added on the PF ..... but what if no data comes to E2k3 PF (thats my concern)

- Rancy
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AmitIT ArchitectCommented:
Did you create any bidirectional Routing Connector, if not create it and test again.

http://blog.mattsampson.net/index.php/how-to-setup-a-routing-group-connector-between-exchange-2003-and-2010?blog=1

Better to move everyone to 2010
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CIPortAuthorityAuthor Commented:
@amitkulshrestha:  Yes, the routing connector is properly configured and email is flowing fine between the two servers now.  Initially I had a problem with some anti-spam software blocking the public folder emails from the Exchange 2010 server from reaching the Exchange 2003 server.  That has been fixed now but the issues is how to resend everything that had previously been blocked.

The ultimate goal is to get everyone moved over to 2010 but there are a number of other issues that are getting in the way of this so for right now, we have to run in parallel.
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AmitIT ArchitectCommented:
Just try this dismount the 2003 PF DB and mount it back again and check if that works.
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CIPortAuthorityAuthor Commented:
Exfolder wouldn't help but removing and re-adding the replicas did.  Everything seems to be sync'd now!  Thanks.
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