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What this tool does

The Email Validator checks email addresses in your Airtable table for validity and writes a status result to an output field. It runs a series of checks you configure, from format validation to DNS-level deliverability checks.

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Settings reference

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Source

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Validation checks

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Handling

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What is written to the output field

The tool writes a status string to the output field for each record. The value indicates the result of the validation checks:
  • Valid: passed all enabled checks
  • Invalid format: failed the syntax check
  • No MX record: domain has no mail exchanger record
  • Disposable email: flagged by the disposable email detection list
  • Possible typo: did you mean xyz.com?: typo suggestion appended (when enabled)

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Preview

The Email Validator has a preview panel that shows a sample of your email records with the validation result for each. Review results before committing the run.

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MX record checks

The MX record check makes a DNS lookup for each unique domain in your records. This confirms the domain has a mail exchanger configured, a strong indicator that the email address can receive mail.
MX record checks add network latency. A table with many unique domains will take longer to process than the same table without MX checks.

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Common use cases

  • Clean up a contact list before sending a campaign
  • Score leads by email quality
  • Flag invalid emails for review before exporting data
  • Identify disposable signups in a user database

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Common questions

No. An MX record confirms the domain can receive email, but individual addresses may still bounce. Use the Email Validator as a signal, not a guarantee.
For real-time validation on form submission, use the email field’s built-in validation options (block disposable emails, verify with OTP). The Email Validator tool is for bulk validation of existing data.
The tool uses the MailChecker library, which maintains a list of hundreds of known disposable email providers and domains.