I am wondering of your note because my archive file takes now about 3.5 GB. What do you have for a computer ? Do you have 512 MB of memory at least ?
How complex is your folder structure ?
Following steps will help you. Copy the Archive DB without documents and without acl so so are sure to be manager and to have the file structure. The compy about 600-900 mails in the corresponding folders. If you need more place make a new copy with a new name (perhaphs while you copy the DB give it the full index option with it and to do it once a day)
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