**Palace Mail is fully healthy.** All features tested and passed:

- Layout renders correctly with owner tabs (Junwon/Ace), domain pills, split view, and compose button
- All 6 inbox accounts return emails (26 total across Junwon/Ace)
- Sent folders working (all 6 accounts)
- Message detail, search, attachment, archive/delete, VAPID/push subscription endpoints all return HTTP 200
- JS syntax valid, all 28 key DOM elements present
- No console errors, no visual glitches

No fixes were needed.