====== Outlook AddIn Checklist ======

**Version:** 2.1\\
**Scope:** VSTO/COM patterns, Ribbon/UI state, and deployment hygiene.

===== MUST =====

  * [ ] Explorer vs Inspector contexts are handled explicitly; no cross-contamination of state
  * [ ] UI toggles reflect the current pane state reliably across windows
  * [ ] COM objects are released deterministically; no event handler leaks
  * [ ] Threading model is respected (UI thread affinity); no blocking calls in UI events
  * [ ] Add-in startup and shutdown are resilient; failure does not break Outlook session
  * [ ] Sensitive data is not stored in item properties unless encrypted and explicitly required
  * [ ] Logging avoids PII and secret leakage; errors are mapped without oracle behavior

===== SHOULD =====

  * [ ] Feature flags/config can disable risky features without redeploy
  * [ ] Clear versioning and compatibility statement (Office versions, 32/64-bit, Office.js/VSTO)

===== NICE =====

  * [ ] Provide diagnostic mode with safe redactions
  * [ ] Add integration tests for ribbon callbacks and pane toggle logic

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//Version: 2.1 (Split)//\\
//Author: Wolfgang van der Stille//

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