Exchange Server – Get Mailbox Folder Sizes

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If you are using Exchange and you want to see the list of folder sizes a mailbox has, you can open up Exchange Management Shell (EMS) and run the command below:

Get-MailboxFolderStatistics mailboxalias | Select Name,@{N="FolderSize (MB)";E={$_.FolderSize.ToMB()}},ItemsinFolder

Where:

• mailboxalias = The alias of the mailbox you want to get the folder sizes of
• Name = Name of the folder
• @{N=”FolderSize (MB)”;E={$_.FolderSize.ToMB()}} = Converts the folder size into MB
• ItemsinFolder = The number of items in each folder

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