old-database-spec

The name of the database that is being renamed. 

new-database-spec

The new name of the database. This may either be an actual pathname, or one of the special names such as IMTA_ALIAS_DATABASE, IMTA_REVERSE_DATABASE, IMTA_GENERAL_DATABASE, or IMTA_DOMAIN_DATABASE, listed in the MTA tailor file and pointing to actual pathnames.