However, when you use Outlook 2013, 2016, 2019 or Office 365 and have the Sync Slider set to not sync all your mail from your mailbox, then take a look at the Server Data tab instead as otherwise you’ll miss the amount of data which is only kept on the server. You only have to look at the Local Data tab cleanup changes you make will automatically take place on the server as well. When connecting to Exchange, you’ll see a Local Data and a Server Data tab. Overview of folders in the mailbox and their sizes.
To get an overview of the total size of your mailbox and each individual folder you can open the Folder Size dialog įile-> section Info-> button Cleanup Tools-> Mailbox Cleanup…įile-> section Info-> Tools-> Mailbox Cleanup…