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Arcjet · Concept

Require MX records

Arcjet email validation checks whether an address has an acceptable format before sign-up. It follows several RFC rules but excludes formats such as local domains that are unlikely for real users.

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Syntax

validateEmail(options)

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  • Email validation
  • Validation
  • Require MX records
  • Domain literals

Source: Email validation reference for Node.js | Arcjet Docs. Checked 2026-11-03.