email list health check
Use this working tool to inspect structure, plan credits, or query a domain without confusing that action with mailbox verification.
- STAGE 01FILE ACQUIRED
- STAGE 02STRUCTURE INSPECTION
- STAGE 03DUPLICATE MAPPING
- STAGE 04VERIFICATION QUOTE
Drop your CSV. Find the hidden rows.
Your file stays in this browser. No upload. No mailbox verification. No credits spent.
100 MB · 1,000,000 email rows · Comma-separated CSVEXAMPLE LARGE-LIST REPORT · NOT YOUR DATA
- Total rows
- 82,491
- Unique candidates
- 74,208
- Duplicates
- 6,731
- Malformed / skipped
- 1,552
Example only. Split lists larger than 1,000,000 emails into files before using the current release.