Phase 6: Moving Mailboxes and Decommissioning Exchange Server 5.5
To complete the deployment, run the ADCConfigCheck tool, the ConfigDSInteg tool, and the RecipientDSInteg tool.
• ADCConfigCheck: The ADCConfigCheck tool makes sure that Exchange Server 5.5 directory configuration objects were correctly replicated from the Exchange Server 5.5 directory to Active Directory. The ADCConfigCheck tool searches Active Directory by using the Exchange Server 5.5 object’s ADCGlobalNames attribute. It returns a list of any Exchange Server 5.5 configuration objects that are missing from Active Directory. Before you use the ADCConfigCheck tool, wait for Exchange Server 5.5 objects to be replicated.
• ConfigDSInteg: The ConfigDSInteg tool runs the E2kDSInteg configuration object to check Active Directory configuration objects. The E2kDSInteg configuration object checks are designed to detect problems in Active Directory after the Active Directory Connector has been configured.
• RecipientDSInteg: The RecipientDSInteg tool runs the E2kDSInteg configuration object to check each recipient object, including the user object, the group object, the contact object, and the public folder objects in Active Directory. The E2kDSInteg configuration object checks are designed to detect problems in Active Directory after Active Directory Connector has been configured.
The next step when you decommission Exchange Server 5.5 is to prepare to move the mailboxes. To do this, back up the Exchange Server 5.5 databases, and then back up the new server that is running Exchange Server 2003. If you are running other programs on the new server, also perform a full program-level backup of the system. Include a backup of the Windows system, including the system state and the registry, but do not include the Exchange databases. Finally, turn off all antivirus software.
Run the PrivFoldCheck tool that uses the Exchange Server 5.5 Directory Service/Information Store consistency adjuster to make sure that the directory and the private information store are synchronized. The PrivFoldCheck tool removes unknown user accounts from mailboxes on Exchange Server 5.5, and it filters inconsistencies that are more than one day old. It also creates new directory entries for mailboxes that do not have a corresponding directory entry.
Next, run the Move Mailboxes tool, and then replicate public folders to Exchange Server 2003. Finally, remove the last Exchange Server 5.5 computer from the site.

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