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Verify any email address in real time

See exactly what the receiving mail server thinks of any address: score, state, SMTP provider, role, disposable, accept-all and more.

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Includes 250 free credits · No credit card required

99% Deliverability Encrypted & secure GDPR Compliant

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Enter any email address to verify it in real time

sarah@stripe.com
Verify

sarah@stripe.com

Deliverable

Score

96 / 100

Reason

accepted_email

SMTP Provider

Google Workspace

MX Record

aspmx.l.google.com

Attributes

Role: no Disposable: no Free: no Accept-all: no No-reply: no

Trusted by 5,600+ Businesses Across 180+ Countries

01 · Check

Every category that matters, every check

A single Verify call runs the same multi-stage pipeline our bulk verifier uses, so a one-off check and a 100k-list run get the same accuracy.

  • Syntax → domain → MX → SMTP → reputation pipeline
  • Anti-greylisting resolves the 3% that other tools mark Unknown
  • Cache capped at 5 minutes: never a stale answer

Syntax

RFC 5322 conformance, length, local-part rules

→

Domain

DNS resolution, A/AAAA, alive checks

→

MX

MX record lookup, fallback to A, priority

→

SMTP

HELO/EHLO, MAIL FROM, RCPT TO negotiation

→

Reputation

Disposable, role, free, accept-all signals

02 · Result

Every signal in one pane

State, reason, score and every attribute the receiving server told us about the mailbox, surfaced in a single, readable result.

  • Four-state verdict: Deliverable · Risky · Undeliverable · Unknown
  • Per-address score 0–100 with the reason that drove it
  • Flags for role, disposable, free, accept-all, no-reply, mailbox-full

sarah@stripe.com

Deliverable

Score

96 / 100

SMTP Provider

Google Workspace

MX Record

aspmx.l.google.com

Reason

accepted_email

Role: no Disposable: no Free: no Accept-all: no No-reply: no
03 · Fix

Catch typos before they cost you

Common slips get fixed before they ever hit your CRM. Suggest the right spelling, and you stop a bounce that would have happened weeks later.

  • Did-you-mean suggestions for the 50,000 most common domain typos
  • Disposable detection across 50,000+ burner-mail providers
  • Live results for the latest disposables and accept-all patterns
jane@gnail.com
Did you mean jane@gmail.com?
test@mailinator.com Disposable
Why use the Email Verifier

The fastest way to check a single address

One-off checks for sales, support and engineering, without standing up an API integration or running a bulk job.

Real-time results

Type an address, hit Verify, get the verdict in under a second.

99% deliverability

Backed by the same multi-stage pipeline that powers our bulk verifier.

Full attribute breakdown

State, score, role, free, disposable, accept-all and more: all in one pane.

Did-you-mean fixes

Catch common typos like gnail.com → gmail.com automatically.

Non-invasive checks

We negotiate with the receiving mail server but never actually deliver mail.

Anti-greylisting

Smart retries resolve the 3% of addresses other checkers leave as Unknown.

SMTP provider detection

See whether an address is hosted on Google, Microsoft 365, Zoho, and more.

MX record visibility

The exact MX server we negotiated with, surfaced in every result.

Free to try

250 credits free every month, no credit card to start.

Other ways to clean and protect your sending

Pair this with the rest of the VerifyMaill platform. Every feature is included on every plan.

Bulk Verification

Bulk Email Verifier

Clean entire lists in minutes

Learn more
Verification API

Email Verification API

Built for developers

Learn more
Real-time Widget

Real-time Email Widget

Catch bad emails at signup

Learn more

Frequently asked questions

What does the Email Verifier do?
It checks a single email address in real time and tells you whether it's safe to send to. Every check is categorized as Deliverable, Risky, Undeliverable or Unknown, with a full attribute breakdown: score, SMTP provider, MX record, role/disposable/free/accept-all flags, and more.
How accurate is it?
VerifyMaill backs every result with a 99% deliverability guarantee: no more than 1% of addresses marked Deliverable will hard-bounce on send. Our multi-stage pipeline (syntax → domain → MX → SMTP → reputation) catches what single-pass checkers miss.
Will the recipient see anything?
No. Verification is fully non-invasive: we negotiate with the receiving server up to the point where it confirms whether the mailbox exists, then disconnect. No message is ever delivered.
Is it free?
You can try it instantly on this page, and after a free signup you get 250 credits every month, no card required. Beyond that, additional credits start at $4 per 1,000 verifications.
How fresh are the results?
Always live. We cap caching at 5 minutes so two checks an hour apart will both re-run the full SMTP negotiation. No stale answers, no quietly invalidated state.
What if I need to check a whole list?
Use the Bulk Email Verifier. Upload a CSV, paste a column from a spreadsheet, or pull straight from your ESP. Same per-address accuracy, just at scale.
What's the difference between Risky and Undeliverable?
Undeliverable means the address will hard-bounce: invalid syntax, dead domain, or the mailbox doesn't exist. Risky means the address technically resolves but has reputation signals you should think about before sending: accept-all domains, role mailboxes, or known-low-quality senders.
Is my data secure?
Yes. VerifyMaill is GDPR compliant and follows industry best practices. All checks travel over TLS, results are encrypted at rest with AES-256, and we keep them no longer than necessary.

Check any address, any time

Try the verifier above. Sign up to keep history, batch on demand, and unlock the full attribute set. 250 credits free every month.

Get Started Free

Includes 250 free credits · No credit card required