Acquiring a company with it's own domain that is managed by another IT company. who manages the local domain.
We are migrating Exchange mailboxes from local Exchange server and migrating up to Cloud based email.
If we take a backup of the information store after migration, is any of that data accessible in the future, without the original exchange server, i.e. is there a way to mount the information store on a backup exchange server, etc.
I am just trying to determine if there is any value in safe keeping of that data in the event we ever get audited, as it contains data and information from legacy or termed users. Also, if there is any value, I'd prefer to keep a copy of the exchange information store, and just mount it up in the event that we needed to. Otherwise, keep in stored away on some redundant array or cold disk storage.
Any thoughts in regards to this appreciated.