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Free Email Checker

Paste any email address to instantly verify deliverability, detect disposable or role-based addresses, and inspect DNS/MX health — no account needed.

What this tool does

This free email checker runs a multi-step verification pipeline against the address you enter. It first validates syntax, then queries DNS for MX records, checks whether the domain is a known disposable provider, flags role-based addresses (like info@ or support@), and finally performs a live mailbox handshake — without sending any actual message.

The result includes a deliverability score, disposition state (deliverable / undeliverable / risky / catch-all), and diagnostic signals you can act on immediately.

Why it matters

  • Protect sender reputation — sending to invalid addresses raises your bounce rate and risks ISP blacklisting.
  • Spot fake signups — detect disposable or temporary email addresses at the point of entry.
  • Diagnose delivery issues — understand why a specific address isn't receiving your emails.

Usage limits

Free tool — 10 checks per minute per IP, no account required. Need higher throughput or bulk verification?

Need bulk email verification checks?

Upload a list of 100k addresses and get confidence-scored results in minutes. REST API, webhooks, CSV export.

Try it free →

Related free tools

Disposable Email Checker

Check if a domain is a known disposable provider.
MX Lookup

Find MX records and identify email providers.
DNS Lookup

Full A, MX, TXT, SPF, DKIM, DMARC lookup.

FAQ

No. The checker uses a handshake-only probe (EHLO → MAIL FROM → RCPT TO → QUIT) that confirms mailbox existence without delivering any message.

Some mail servers accept any address at their domain, even fake ones. Catch-all results mean we couldn't confirm the specific mailbox — the domain exists but may accept invented addresses.

Yes, the single-email checker is free with no account required. Bulk verification and API access require a plan starting at $9/month.

Over 99% for hard outcomes (invalid syntax, no MX, mailbox reject). Catch-all and risky domains are flagged with confidence scores to reflect uncertainty.
Free forever — no credit card

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300 verifications /mo · five-minute API integration · credit refund on hard bounces. Trusted by senders who treat sender reputation like the asset it is.

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