A backup taken from another SMG can be restored without changing the IP address and hostname of the new server. You need to know what what settings are preserved (not overwritten from the old settings) when restoring from a backup on another Symantec Messaging Gateway.
SMG - Control Center v 10.7.X, 10.8.X and 10.9.X
The following settings are left and not overwritten by the settings in the backup:
These flexible restore features enables easier appliance migration and disaster recovery.
NOTE: