This left an Exchange 2003 and Symantec Enterprise Vault environment for me to complete the migration.
You have the ability here to select only specific items if you are trying to clean up the archive at time of export. You will have to validate that there is enough space available in this directory for the users that are being exported.
Now is the time to set the import settings for the PST Capture Tool to ensure that it writes to the Exchange Archive Mailbox.
Please have a look at the other settings for the tool as they may pertain to you.
Lastly, the Archive mailbox is accessed Online Mode only and will not be cached on a user’s machine so access to Exchange is required.
There are many ways to get the data into Exchange but the most effective way is to use a free tool created by Microsoft called PST Capture.
Create a local archive and select a database to store the archive.