All features of Palace Mail were tested. **No bugs found.**

Here's the test summary:

**APIs verified:**
- Inbox: 9 emails (ace@manglasabang), 4 (ace@palace.fund), others empty — all returning correctly
- Sent folder: 3 emails
- Message detail: text, HTML, and attachment emails all load correctly
- Thread messages: all 4 messages in a thread return HTTP 200
- Attachment download: correct content-type and content-disposition
- Search: finds results, handles 0-result queries cleanly
- Archive/Delete: proper error handling
- Send: handles both JSON and multipart/form-data

**UI verified:**
- Owner tabs (Junwon / Ace) present
- Account pills (manglasabang, palace.fund, palacering) render on load
- Split layout correct
- Compose modal has To, Subject, Body, From dropdown
- Reply/Forward prefills correctly (Re:/Fwd: subject, quoted body, correct To address)
- Thread grouping, swipe actions, pull-to-refresh, load more, mobile responsive — all implemented correctly

No rebuild needed.