EMAIL VERIFICATION

Evidence you can use.

Upload a list, review the billable rows before starting, and receive recipient-level classifications with the reason and evidence behind them.

Checks performed

WorldsContact validates syntax, resolves mail infrastructure, and performs SMTP recipient checks through an authenticated verification node. It does not transmit message content or issue SMTP DATA.

Results with context

Results are classified as deliverable, risky, undeliverable, or unknown. Evidence strength, SMTP response details when available, retry history, and catch-all signals help you interpret the category.

Built for list workflows

CSV, XLSX, and TXT uploads are analyzed before credits are reserved. Duplicate and invalid rows are retained in the report without consuming verification credits.