Email Verifier
Verify the validity of any email address with the most complete email verification service.

Enter an email address to verify its accuracy.
Server status
Email status

Never get bounces anymore.

We designed the Email Verifier to be as complete as possible, with validations made at multiple levels: format, domain information, response of the mail servers and comparison with our unique base of 200+ million professional email addresses.
Get 50 free verifications/month

Verify email addresses in bulk

The Email Verifier can be performed for a list of email addresses. Upload your file in the dashboard and watch it being enriched with the email validations.

Bulk Email Verifier

Available in the API

The main services of Hunter are also available directly though our API. Get the complete check result of any email address with a simple API call.

Email Verifier API

Common questions about the Email Verifier

Does an email address marked "deliverable" have no chance of bouncing?

The verifications are never totally sure, but we can guarantee that more than 95% of "deliverable" email addresses won't bounce.

What exactly does it mean when an email address is marked "risky"?

When an email address is tagged "risky", it means the server check seems to work, but we have reason to believe the email may not be read by anyone.

This can happen in several cases, for example:

  • The email seems to be received, but the servers also seem to accept every email address.
  • The email seems to be received, but it looks like gibberish (for example "").

Does it send an email to do the verification?

The email checker does the validation without sending an email, by directly connecting to the SMTP server.

Is the Email Verifier free?

When you are logged in, every verification counts as one request. With a free account, you can use up to 50 requests/month. If you need more, you can upgrade to the plan that suits your needs. Please check our pricing for more information.

What does an "accept all" status mean?

It means the mail server accepts all the email addresses sent on the domain, whether they have actually been created or not. In this case, the SMTP verification isn't relevant and we mark the email address as "risky" unless we have other strong signals indicating that the email address really exists.

What do you check for when verifying emails?

This is the list of verifications we do:

  • Valid format: First, we verify the format of the email address is correct and looks something like "".
  • Gibberish Email Address: We check to ensure the address doesn't look like a random email address. For example, doesn't pass the test.
  • Disposable Email Address: We check if the email address has a domain name used for temporary email addresses.
  • Webmail Email Addresses: We verify if the email address uses a webmail like Gmail or Yahoo.
  • Presence of MX Records: We check if there are MX records on the domain. If there aren't, the email address can't receive emails.
  • Presence of SMTP Server: This check is successful if we are able to connect to the SMTP server (indicated in MX records).
  • SMTP Check: We test the email address and see if it bounces or not, whithout sending an email.
  • Accept-all Domain: We check if the server has a catch-all policy which accepts all the email addresses.

Where the Email Verifier can be used