Mobile Locker JavaScript SDK
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    Type Alias EmailDeliverabilityStatus

    EmailDeliverabilityStatus:
        | "TBD"
        | "valid"
        | "overridden"
        | "invalid"
        | "disposable"
        | "catchall"
        | "unknown"

    NeverBounce email deliverability result for a contact's email address.

    Type Declaration

    • "TBD"

      Not yet checked.

    • "valid"

      Verified as a real, active address currently accepting mail. Safe to send.

    • "overridden"

      Manually overridden — treated as deliverable regardless of NeverBounce result.

    • "invalid"

      Verified as a bad recipient address; will result in a bounce. Do not send.

    • "disposable"

      Temporary/disposable address. Will result in a bounce. Do not send.

    • "catchall"

      Domain accepts all mail ("catch-all"). Deliverability cannot be confirmed — send only if your bounce tolerance allows it.

    • "unknown"

      Domain or server did not respond after 75 attempts. Status is inconclusive — send only if your bounce tolerance allows it.