Public folder database does not replicate on Exchange 2010

In my case Exchange organization was migrated from Exchange 2000 to Exchange 2007. Public folder replication between Exchange 2000 and 2007 servers was OK, before removing the last Exchange 2000 server. Also, after removing the last Exchange 2000 server, public folder replication was working fine, between Exchange 2007 mailbox servers. When Exchange 2010 mailbox servers were introduced into organization, email flow was OK, but public folder databases created on Exchange 2010 servers were not replicating with public folder databases mounted on Exchange 2007 mailbox servers. On Exchange 2010 mailbox servers event log I have found the following event :

Log Name: Application
Source: MSExchange Store Driver
Event ID: 1020
Level: Error

The store driver couldnt deliver the public folder replication message "Hierarchy (" because the following error occurred: The Active Directory user wasn't found.

The resolution for this problem is to delete the empty Servers container (using ADSI Edit) in Active Directory, which was from Exchange 2000 organization :

Microsoft has published article regarding this issue .


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