Inbox Placement Estimator
Answer a few yes/no questions about your authentication and list quality to get an estimated inbox-placement score. Advanced mode adds engagement and reputation signals.
An estimate from your reported signals, not a seed-list test — fix the biggest gap first.
How it works
- 1Tell us whether SPF, DKIM and DMARC are set up and your list is verified.
- 2Advanced: add engagement rate, complaint history and content quality.
- 3Get an estimated placement score and the weakest link to fix first.
Frequently asked
Is this a real seed-list inbox test?
No — it's an estimator based on the signals you report, so you can spot gaps fast. True seed-list testing sends to provider accounts; this points you at what to fix first.
What moves placement the most?
Authentication (SPF/DKIM/DMARC) gets you eligible; list quality and engagement get you to the inbox. The score weighs both and flags your weakest factor.
Can I check a whole list at once?
This free tool checks one at a time. To verify a full list — email, phone and company together — upload a CSV to BounceBlock and preview your first 100 rows free.
Stop wasting hours on dead leads.
Upload your list and see how clean it really is — free, in under two minutes.