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Inspect the log targets in the domains of the DataPower gateway, find the duplicate log targets of DPOD with the wrong/old environment name, and delete them.
In the future, before DPOD uninstallation, make sure to remove all DataPower gateways from DPOD Web Console. This will provide you with the option to remove all log targets from the DataPower gateway as part of its removal from DPOD, and will prevent the duplication if this DataPower gateway will be added to another DPOD instance that will share the same machine/IP address.
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