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Cleanup old Exchange 2003 to 2007 migration

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Last Modified: 2013-12-12
I have what I think is a unique situation here. I need to clean up an old 2003 to 2007 exchange migration which looks to be about 3 years old.

The migration was completed to the 2007 box but no other parts of it appear to be have done on the 2003 side, which is still running as a domain controller.

The 2007 box is running fine except for some Transport warning every few minutes:

event id: 5006
 "A route to Mailbox server CN=oldexchange... could not be found in store..."  

event id: 5020
The topology doesn't contain a route to Exchange 2000 Server or Exchange Server 2003 server oldexchange.domain.com" warning. But everything is working fine.


All the exchange services were all stopped on the 2003 box.

So, for fun, I dig up some old 2003 > 2007 migration links and read through on what to do to finish up a migration. How to remove the 2003 box. I fire up the services and see if the stores mount and they do. The mailbox store is basically empty. It looks like all mailboxes were moved.

Also, there are no connectors in the routing groups and offline address list appear to have been moved.

The article I'm reading mentions that I need to go to public folders on the old server and delete the store. (BTW, they use public folders here like crazy. They are all on the 2007 server and working fine.)

When I try this I get the, "You cannot delete this folder because it contains replicas". So the article says at this time you would choose "move replicas"

well, the last access time on any of these folders was 2011. If I do this, what happens?
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