{
  "id": "MSG-075",
  "slug": "msg-075",
  "title": "HELP reply support contact must be on the brand domain",
  "statement": "The support email given in the HELP response must be on the registered brand domain.",
  "rationale": "A HELP reply pointing at a domain unrelated to the brand looks like a redirection to a third party, which is precisely what reviewers screen for. It also breaks the CTIA requirement that help routes actually reach the sender rather than a dead end.",
  "layer": "MESSAGE_CONTENT",
  "layerSlug": "message-content",
  "object": "campaign.help_message + brand.website",
  "severity": "MEDIUM",
  "detectability": [
    "DETERMINISTIC"
  ],
  "failureClass": "RETRY_FIELD",
  "authorities": [
    "CTIA",
    "TCR"
  ],
  "applicabilityText": "Applies to every 10DLC registration.",
  "universal": true,
  "remediation": "Use a support address on the brand's own domain in the HELP reply, matching the brand website.",
  "example": "Acme Coffee: for help email support@acmecoffee.com. Reply STOP to unsubscribe.",
  "phase": "approval",
  "automated": true,
  "url": "https://ekas.io/rules/10dlc/message-content/msg-075/",
  "markdown": "https://ekas.io/rules/10dlc/message-content/msg-075.md",
  "registry": "https://ekas.io/rules/10dlc/",
  "updated": "2026-07-25",
  "licence": "CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/"
}