If you disable logging manually, you must restart Outlook to fully disable logging, otherwise it will continue logging in the background.
Select the Turn on logging for troubleshooting option, and then select OK.In the Sync Errors window, select the Gear icon.On the Window menu, select Sync Errors.More information To enable logging in Outlook 2016 for Mac, follow these steps In Outlook 2016 for Mac version 15.12.3 and later versions, the following features are also logged in addition to those listed earlier: Microsoft Exchange (folder and item synchronization).Outlook for Mac provides the option to enable logging for the following features: Applies to: Outlook 2016 for Mac, Outlook for Mac for Office 365.
