Can I upload legacy email data?
Yes using the historical data upload app, you can ingest legacy email data in PST, EML, MBOX files and from IMAP accounts hosted on mail servers.
Does the retention policy of a Vaultastic plan apply to legacy data?
Since legacy data upload is supported only for the storage-based Hold plan of Vaultastic, no retention is applied.
Can I import historical data to a Vaultastic account after I have started live email archiving?
In fact, this is a highly recommended approach in which we suggest that you start archiving the moment you are on-boarded so all mail from that moment on are safely secured.
After that you can work out a migration strategy, which includes what data to migrate, which users to target first, what methods to use and so on.
You may also have to create a team to plan, supervise and execute on this. Importing historical data does not interfere with the live archiving.