Cached Exchange Mode is enabled by default when you use your NIC email account in Outlook. In this mode, a copy of your mailbox is saved on your computer. This copy provides access to your data, and it is frequently updated with the server that runs Microsoft Exchange. The IT Help Desk will often recommend that you change your Outlook settings so that Outlook operates out of Cached Exchange Mode. When Cached Exchange Mode is enabled, we have seen a variety sync issues such as emails sitting in the Outbox folder or folders getting moved and no longer show up in Outlook. Changing this setting will help update your Outlook quicker and assist in preventing sync issues. While this is a general recommendation, some users email accounts will operate better in Outlook in Cached Exchange Mode while others operate better when that setting is disabled. Knowing how to adjust this setting will help troubleshoot issues to find what setting may be the best fit for you.
- Open Outlook.
- Click File > Account Settings > Account Settings.
- Click your email address under Name, and then click Change.
- Under Offline Settings, un-check the box next to Use Cached Exchange Mode, click Next, and OK. Close Outlook and re-open it.