Although not required, you may want to gather PST files together in a local directory to simplify the import process and improve performance.
Because the default name used when creating PSTs does not identify users, Aurea recommends that you either incorporate the user name in the directory containing a user’s PSTs or rename the PST files to identify the user.
If email is to be imported into a user’s personal archive, only one user per PST file is allowed. However, messages from multiple PST files can be imported for a single user.
If email doesn’t need to be imported into a user’s personal archive, or if this feature is being used for discovery purposes only, multiple users’ emails can be gathered in a single PST and imported into a single designated owner’s mailbox.
If you are importing mail for discovery purposes only, you can assign the discovery owner as the owner of all mail to be imported. This imports all messages into the discovery owner’s searchable archive.