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Outlook Version Mismatch: Fix Email Sync Issues - How to Fix Windows Defender Token Expired Error-Microsoft Teams cxa20001 Troubleshooting Guide

Updated 2026-06-14 02:17:24browser-issues
Outlook Version Mismatch: Fix Email Sync Issues - How to Fix Windows Defender Token Expired Error-Microsoft Teams cxa20001 Troubleshooting Guide
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.