Email Address Validator Online

Validate email address format against RFC 5322 standards. Batch validate multiple addresses with detailed error reporting.

How to Use

  1. 1

    Enter emails

    Type or paste one email per line for batch validation.

  2. 2

    Validate

    Click Validate to check all addresses.

  3. 3

    Review results

    Each email shows pass/fail with specific error details.

FAQ

What does email format validation check?

It verifies: valid characters in local part, presence of @ symbol, valid domain structure with TLD, no consecutive dots, proper quoting of special characters, and RFC 5322 compliance.

Does this check if the email actually exists?

No. This validates format only. Checking if a mailbox exists requires MX record lookup and SMTP verification, which cannot be done from a browser. Use server-side email verification services for deliverability checks.