Exchange Server – Get Mailbox Folder Sizes


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:


  • 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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