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Exchange 2000 to 2003 Public Folder Migration Failure 

Added: 11/17/2005, Hits: 3,566, Rating: 0, Comments: 0, Votes: 0
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A customer has installed Exchange 2003 into an existing Exchange 2000 organisation. As part of the migration of the public folders from Exchange 2000 to Exchange 2003 they attempted to configure the new server as a Replication partner. The public folders would not replicate correctly and events such as the following appeared in the original Exchange server event log:

Quote :

Event Type: Error
Event Source: MSExchangeIS Public Store
Event Category: Replication Errors
Event ID: 3093
Date: 17/11/2005
Time: 10:45:11
User: N/A
Error -2147221233 reading property 0x67480014 on object type
tbtOwningFolders from database First Storage Group\Public Folder Store

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When viewing the Exchange servers Queues, we noticed there was a large amount of mail traffic attempting to connect to the Exchange server, but via an external connector, so was therefore hung on attempting retry attempts to the new mail server.

After trawling through many support and tech articles, the solution was quite straight forward, but very easily missed!

The Default SMTP connector was configured to deliver all mail through a smart host (Store and Forward) server located at the ISP. In a single Exchange server environment this works fine, but not in a multiserver environment. With this option set ALL mail was configured to deliver through the smart host.
In Exchange 2000 there is an option for "attempt direct delivery before sending to smart host".

Once this was enabled and after a reboot (to ensure all services restarted correctly), all queued mail to the new Exchange server was successfully delivered and Public folder replication completed successfully.

Full recognition for this find goes to my boss - well spotted Rick Eveleigh.

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