Create archive with no associated mailbox
We are ingesting a whole bunch of PST files, recovered from tape. There are several PST files that belong to users /mailboxes that have since left / been deleted.
Is there a way to create an archive to as the target for these PST files without having to create an associated mailbox? I know if a mailbox is deleted the archive remains.
If so, can this be done using EV Policy Manager (Scripting)? i.e. if no mailbox found, create archive.