Email deliverability, monitored — before it breaks.
Scan your domain for SPF, DMARC, and key inbox requirements. Get alerted only when something changes.
Free scan · Read-only · No signup required.
Latest scan
example.com
PASSSPF ✓ · DMARC ✓
Alert
Status changed → WARN
We’ll email you when something changes.
WARNHow InboxReady works
Scan once
Run a free scan to check your SPF, DMARC, and inbox-critical headers.
Monitor continuously
We automatically re-check your domain and track changes over time.
Alert only when it matters
You’re notified when something breaks — not on every scan.
Built for modern inbox rules
Gmail, Yahoo, and Microsoft now enforce stricter sender requirements. Missing or misconfigured SPF, DMARC, or unsubscribe headers can quietly harm deliverability.
InboxReady helps you catch issues before they affect sending.
What InboxReady checks
SPF & DMARC
Presence, syntax, and enforcement policies inboxes expect.
Policy & alignment
Whether your DMARC policy actually protects your domain.
Headers & unsubscribe
DKIM, List-Unsubscribe, and one-click unsubscribe support.
Start with a live scan
It takes a few seconds and doesn’t modify anything.
No signup or credit card required.