What is Email Verification?

Email verification is the process of checking whether an email address is real, valid, and able to receive messages. Our free email verifier performs multiple checks including syntax validation, domain verification, MX record lookup, and SMTP handshake to determine if an email address is deliverable.

Why Verify Email Addresses?

Protect Sender Reputation

High bounce rates damage your sender reputation and can get your domain blacklisted. Verify before you send.

Improve Deliverability

Clean email lists have higher inbox placement rates. Remove invalid emails to ensure your messages get delivered.

Reduce Costs

Stop paying to send emails that will never be delivered. Verify once, save on every campaign.

Better Analytics

Accurate email lists mean accurate open and click rates. Make data-driven decisions with clean data.

How Our Email Verifier Works

Syntax Check - Validates the email format follows RFC 5322 standards
Domain Verification - Confirms the domain exists and is configured for email
MX Record Lookup - Checks for valid mail exchange records
SMTP Handshake - Connects to the mail server to verify the mailbox exists
Catch-All Detection - Identifies domains that accept all emails regardless of mailbox

Understanding Email Verification Results

Valid

The email address exists and is accepting mail. Safe to send.

Invalid

The email address doesn't exist or is not accepting mail. Do not send.

Risky

The result is uncertain. Common with catch-all domains or temporary issues.

Need to Verify More Emails?

This free tool is great for checking individual emails, but if you need to verify email lists in bulk, Unlimited Verifier offers the most affordable solution on the market. Verify millions of emails for just $29 with our unlimited email verification plans.

Verify Unlimited Emails

Upload your entire email list and verify millions of addresses at once. Get 99.5% accuracy with our deep verification engine. Starting at just $29/month.

Start Verifying

Free Email Verifier