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After hitting Enter, you might not see any visible feedback. This lack of response simply means that the command was successful. Occasionally, users may flush their Troubleshoot Outlook Synchronizing Folders Error DNS cache only to realize that issues persist, such as slow-loading sites or connection errors.

Occasionally, users may flush their DNS cache only to realize that issues persist, such as slow-loading sites or connection errors.For Mac users, you can use Terminal and run the command sudo killall -HUP mDNSResponder for macOS Mojave and later versions