---
title: "Email List Health Check | Refresh List"
description: "Scan email-list structure, duplicates, and skipped rows locally before verification."
url: https://refreshlist.net/tools/email-list-health-check
last_updated: 2026-10-09
---

# RefreshScan: Free Email List Assessment

RefreshScan inspects CSV structure, duplicates and malformed rows locally in your browser. It does not upload a file or verify mailbox validity. Choose the email column and review the header selection. Maximum local file size: 50 MB with no email-row cap.

## Continue to verification

Create an account for 100 one-time free checks. Re-select your file in the private workspace, review its assessment and approve verification. For a larger list, a separate first-eligible-row sample uses your remaining free allowance; it is not a representative estimate of the whole list.

[Create free account](https://refreshlist.net/login?mode=signup&return_to=%2Fapp%3Ftab%3Dlists%26upload%3D1%26from%3Dscan)

## Common questions

### Does this verify mailbox validity?
No. Actual mailbox checks require a signed-in verification run.

### Is my file uploaded?
No. It stays in this browser until you explicitly re-select and upload it in your workspace.

### What about CRM columns?
Full reports preserve the original columns beside verification outcomes.

## Sitemap

- [All Public Pages](https://refreshlist.net/sitemap.md)
- [Email Glossary](https://refreshlist.net/glossary)
- [Read This Page And Use Interactive Features](https://refreshlist.net/tools/email-list-health-check)