If it’s enabled, click it to disable the feature. For this, open the Outlook menu and see if Work Offline is enabled. If you face the Outlook for Mac not connecting to Exchange server error, first check if Outlook is running in offline mode. For more information, please refer to How to free up storage space on your Mac. Method 1: Ensure Outlook isn’t Set to Work Offline.

Enabling this option will only download large messages/attachments only when the email is selected in the message list.Ĭheck the Storage Info using About This Mac menu.

Access the account settings and enabled ' Download Headers Only'.

Create a new profile and configuring the Kerio Connect Account Assistant to create a new EWS account in the newly created Outlook profile.

Remove the Outlook profile using the outlook profile manager.

That’s another reason why Outlook for Mac occupies so much disk space. The result can be many gigabytes used on a relatively small drive. Outlook for Mac saves messages and attachments in many different files. In particular, the ability to only sync the most recent messages. Outlook for Mac, even the latest Outlook 2016 doesn’t have some of the space-saving options available to Office for Windows. Also, it may cause issues with emails' synchronization and performance bottleneck. The big storage may affect the general responsiveness of the macOS Outlook application.

The user Outlook profile size might be larger compared to the actual user mailbox size on the Kerio Connect server. When the macOS Outlook profile is occupying an enormous amount of local storage, the disk space can be minimized and optimized.

Mac outlook 2016 sync issues