Outlook Migration from IMAP to Exchange: Fix Sync Issues - Resolve Microsoft Teams DNS Error Code 0xcaa20002-Outlook Setup Checklist for Beginners

Updated 2026-06-14 03:21:32developer-tools
Outlook Migration from IMAP to Exchange: Fix Sync Issues - Resolve Microsoft Teams DNS Error Code 0xcaa20002-Outlook Setup Checklist for Beginners
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.