Exchange 2007 – 2010 Get Mailboxes Size

Hi

Open the Exchange Management Shell

Run :
Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | ft DisplayName,@{label=”TotalItemSize(MB)”;expression={$_.TotalItemSize.Value.ToMB()}},ItemCount

This will get you the list of all users mailboxes in MB

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