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Arcjet · Environment Variable

NO_MX_RECORDS

The Arcjet Node.js email validation rule checks email syntax and verifies email properties. Configure it to allow or deny types such as disposable, free, invalid, or undeliverable addresses.

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Syntax

validateEmail({ mode?: "LIVE" | "DRY_RUN", allow?: ArcjetEmailType[], deny?: ArcjetEmailType[], requireTopLevelDomain?: boolean, allowDomainLiteral?: boolean })

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  • ArcjetEmailType
  • decision.reason.emailTypes
  • Mode.LIVE
  • Mode.DRY_RUN
  • protect
  • ARCJET_KEY

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