exchange archive

Exchange 2010 on server 2012

One user has an inbox of 80 GB
We are desperate to reduce this down in size by archiving emails

What we are doing is to copy chunks of emails into a subfolder in an outlook client and then archiving just this folder to a NAS drive
The folder is around 10 gb
The archiving starts but terminates after a few minutes with the following message:
"The message store has reached it's maximum size . To reduce the amount of data in the message store ..."

Can someone please tell me how to get around this error. I really do not understand why it is happening when we are archiving just one folder
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Don't use a subfolder, rather use a PST file instead and then archive that on your NAS.

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Simon Butler (Sembee)ConsultantCommented:
Archiving to what? A PST file?

If so, then you shouldn't be using a NAS drive - it isn't supported and will usually lead to corruption:

Have you looked at the content of the mailbox at all? In my experience with large mailboxes the content is often attachments, lots of attachments, often multiple revisions of the same attachment, which can then be removed.

Another option would be to just create a new account, move the SMTP address to the new account and then put a forward on the old account to the new one. Use the old account as an archive until someone can go through it.

doctorbillTechAuthor Commented:
Archiving to a pst file
Also tried archiving to local desktop
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Exchange can export mail to a PST.  take a look at the site below it will show you the commands.  the problem is PST can not function at 80GB.  I would also  look at the second link so that you can set up data ranges so that the PST size is controlled.  The third link will show you how big a PST can grow.

Hope this helps
David Johnson, CD, MVPOwnerCommented:
do it year by year, or if needed, biannually (every 6 months) to a different archive.pst
.. start with the oldest and work go the newest .. with enterprise exchange you can archive within exchange.

I have a question why is all of this mail being kept?  I would get some legal advice on what you need to keep and what you should discard. Also it is difficult to put it in litigation hold if need be.. I would hate to have to go to every machine for an e-discovery request.
doctorbillTechAuthor Commented:
suggestions taken on board
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