Like many other email archive solutions, Symantec Enterprise Vault provided the ability to manage Exchange email box sizes by removing email messages and/or attachment from the user’s mailbox to the Enterprise Vault archive while keeping them accessible to end-users by leaving a pointer (or stub) behind for the end-user to click on to access the full email and attachment stored in the archive. With emails and attachments making up the vast majority of data stored on any Exchange server, message stubbing reduced the size of the email store producing a higher performance, more reliable email messaging system.
But beware…Over time this stubbing capability can create hundreds of thousands or millions of stubs within Exchange triggering a different problem. When it comes time to migrate your Enterprise Vault archive, the presence of stubs will greatly complicate the migration process. For example; how does the migration solution account for and match the millions of stubs in the various Exchange email boxes for just those emails migrated from the Enterprise Vault archive.
To ensure all stubs in Exchange are matched up and restored with the archived messages in Enterprise Vault, a Stub Rehydration™ process is critical. Archive 2-Anywhere is the only email archive migration solution that can systematically match-up and restore stubs with original archived messages, and remove leftover stubs from the Exchange server, in a forensically sound process.