To see how big the individual messages are, you might need to add the “Size” column to your view. To see your current sync settings in Outlook 2013, 2016, 2019 and Office 365 use:įile-> Account Settings-> Account Settings…-> double click on your Exchange account.Ĭlick here if you are not familiar with sizes in “bits and bytes”. 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. In the window that is being displayed now, you’ll see an overview of your mailbox folders 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… Add-ins to help process emails and attachmentsīefore starting with cleaning up, you’ll first need to know how “dirty” your mailbox really is.General tips to keep your mailbox small.

In addition to having that “cleaned up” feeling, there are also technical benefits to having a tidy mailbox such as faster loading of Outlook, less clutter in your Search results and quicker backup ups since the mailbox to backup is now smaller. While there is no single “holy grail” method in storing your emails, the strategy used for cleaning up your mailbox effectively are much more generic and can be used for pretty any storage method you use. Are you reaching the limit of your mailbox storage quota or simply want to get rid of some clutter in your mailbox but don’t know where to start? This is the guide for you!

Office 2016 cleanup tool