Single-page, fully offline. Paste a raw header below and click
Analyze (or press Ctrl/Cmd+Enter);
the parser and verdict engine run locally in this browser tab —
pasted headers never leave. Expand the drill-down panels below the
verdict for signal-level detail. Automated data-layer tests live in
tests.html.
Paste the raw header — everything above the message body, from
the first Received: / Authentication-Results:
down to the last X-Mimecast-* / blank line. The
verdict appears below the buttons.
VIP list is stored locally in your browser and never leaves this machine. Export to back up or share.
| Reorder | Actions |
|---|
No VIPs configured. Use + Add VIP above, or
seed via __analyzer.vips.saveVipsToStorage([...]) in
DevTools. Load from file arrives in step (d).
No VIPs match the current filter.
VIP Management complete — steps (a)–(e): panel, state, table, sort, filter, reorder, delete, add/edit modal with validation, load/export, keyboard polish.