Bulk Email Verifier
A bulk email verifier saves hours when validating marketing lists, CRM exports, or event sign-ups. Upload CSV or paste emails and get categorized results: valid, invalid, disposable, and catch-all. Hard bounces hurt reputation; disposable inboxes never convert; catch-all domains are risky for marketing. Download enriched CSV with status columns for your ESP. Pair with our list cleaner to dedupe and remove role addresses first. Whether you manage hundreds or thousands of contacts, bulk verification protects domain reputation and improves inbox placement before every major send.
Use the Free Tool →Frequently Asked Questions
What file formats are supported?
CSV and plain text, or paste emails directly.
How many emails per batch?
Up to 100 emails per web batch for performance.
What is in the export?
Email, status, syntax, MX, and disposable flags.
Do I need an account?
No account for basic bulk checks on the website.
Should I clean first?
Yes—use the email list cleaner to dedupe before verifying.