Ok to import an exported archive PST into two mailboxes?

Hi there,

A confirmation on using the PST migration wizard from the vault console in EV9 please: can I export an archive to a PST file and then import the messages into two different mailbox archives without problems?

Scenario:

I've exported an archive from E2K10 MailboxA. Now I need to import that content into the archive of MailboxX and also MailboxY. Much later, I will delete MailboxA and its archibe.

So I make two copies of the exported PST file then I import the first copy into MailboxX using the "Import PST" wizard in the vault console.

Now can I import the second copy directly into MailboxY in the same way? 

Just wondering if EV will see the same message ID in the imported exported messages and complain ...

Thanks, 

- Alan.