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blkfootFlag for United States of America

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Archiving in Office 365

I have a customer that I migrated from Exchange 2007 to Office 365.  Most mailboxes were reasonable but the owner's mailbox was 99GB.  Ouch.

I had hoped that  I could enable In-Place archiving on his mailbox and as the mail was migrated, the archiving feature would know that anything migrated older than one year would go in the archive.  This was apparently naive thinking on my part and the migration of his mailbox failed when his quote was reached.

How can I now finish his migration?  Will the In-Place Archive just take time to archive the data?

Any help would be appreciated but no comments that his mailbox is way to big.  That is a given.  The problem is how do I get it moved.

Thanks!
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William Miller
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Being entirely serious, could you not just get rid of all the old emails? He'd have to have years of never deleting emails to get a box that large.
Hi,


1. sign in to exchange admin center as admin, navigate to compliance management > retention tags and create a new tag.

2. choose retention policies, create a new retention policy which contains the tag “1 year archive”.
 
3. choose recipients > mailboxes, double click your account, choose mailbox features and select the newly created retention policy.

4. run the command in powershell “start-managedfolderassistant -identity <mailbox identity>” to make the retention policy take effect immediately.
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ASKER

William Miller - I had that conversation with him prior to going down this road.  He wasn't willing to do that.  He was willing to archive though but they didn't have enough space on the server and every time we tried to accomplish it to an external drive the server would crash.

Benjamin Moreau - if this is Office 365 how do I run a powershell command?
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You could get a different plan for him.  Some now offer 100GB mailboxes.

https://medium.com/@bobbyjimenez/microsoft-boosts-mailbox-size-to-100gb-for-select-office-365-plans-3eb796b29934

https://www.petri.com/exchange-online-mailbox-quotas-swelling

Another option is to have a few .PST files, keep those local and backed up and start him over with a mailbox size that is sane and then point to the .PST files.
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Benjamin MOREAU
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The crash is likely happening because of the shear size of the PST you're trying to pull out. It might be useful to you to try and make space on the server, back it up to the server proper and then move the PST to an external drive.
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Thanks, Scott C.  I'm trying to do what we couldn't do on the server which was to force him to archive.  I don't want to give him the option to keep everything in his mailbox any longer.
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ASKER

Thank you, Benjamin.  This was the best solution to the customer's issue.  I have started the archiving so I can hopefully finish the migration AND have his mailbox down to a reasonable size.