MAIL AND DIRECTORY MIGRATION
Do not migrate the alias entries for cc:Mail users if you are using the Nth FullName Propagation field in the cc:Mail Post Office Server document for a post office. If you migrate alias names and use the Nth FullName Propagation field, subsequent MTA synchronization procedures can delete existing alias names and create new aliases in the cc:Mail post office directory.
To avoid inadvertently deleting and creating alias names in a post office directory, clear the Convert Alias Entries check box in the Conversion Settings pane of the cc:Mail Upgrade Options Advanced Settings dialog box when you use the cc:Mail Domino Upgrade Service with the MTA.
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