{
  "id": "BRD-114",
  "slug": "brd-114",
  "title": "Disposable mailboxes are refused outright",
  "statement": "The brand contact email must not be on a disposable or temporary mail domain.",
  "rationale": "A throwaway address means nobody can be reached at the business tomorrow, which defeats the point of collecting a contact at all — and every verification message, PIN and carrier enquiry goes to it. It is refused rather than scored down, and it reaches the field honestly during testing, when somebody wanted a working address without using their own.",
  "layer": "BRAND",
  "layerSlug": "brand",
  "object": "brand.email",
  "severity": "BLOCKING",
  "detectability": [
    "DETERMINISTIC",
    "EXTERNAL_DATA"
  ],
  "failureClass": "RETRY_FIELD",
  "authorities": [
    "Twilio",
    "TCR",
    "Vonage"
  ],
  "codes": [
    {
      "provider": "Twilio",
      "code": "30753",
      "remediable": true
    },
    {
      "provider": "Twilio",
      "code": "30701",
      "remediable": true
    }
  ],
  "applicabilityText": "Applies to every 10DLC registration.",
  "universal": true,
  "remediation": "Use a monitored mailbox on the business domain. If you are testing, register a mock brand (BRD-204) rather than a real one with a temporary address. Done when the address will still receive mail in six months.",
  "example": "email: support@acmecoffee.com — not a mailinator.com or 10minutemail.com address",
  "notes": "Absorbs BRD-079, which states the same requirement for sole-proprietor brands. The check carries the well-known disposable providers; the full list is maintained externally and changes constantly, so a domain passing here is not proof it is off the provider's list — the user still has to use a mailbox the business genuinely keeps.",
  "catalogIds": [
    "BRD-079"
  ],
  "phase": "approval",
  "automated": true,
  "attestation": {
    "question": "Will this mailbox still receive mail in six months, and is it monitored by someone at the business?",
    "howToCheck": [
      "Confirm the domain is the business's own, not a temporary or disposable mail service. The provider's blocklist is maintained externally and changes constantly, so passing our check is not proof it is off theirs.",
      "Testing rather than registering? Use a mock brand instead of a real one with a throwaway address."
    ],
    "failureLooksLike": "A temporary address entered during testing reaches production. Every verification message, PIN and carrier enquiry goes to a mailbox that no longer exists, and the brand is refused rather than scored down."
  },
  "url": "https://ekas.io/rules/10dlc/brand/brd-114/",
  "markdown": "https://ekas.io/rules/10dlc/brand/brd-114.md",
  "registry": "https://ekas.io/rules/10dlc/",
  "updated": "2026-07-25",
  "licence": "CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/"
}