certbot/examples/config.json

{
  "comment": "Canonical URL https://eff.org/starttls-everywhere/config -- redirects to latest version",
  "timestamp": 1401093333,
  "author": "Electronic Frontier Foundation https://eff.org",
  "expires": 1404677353, "comment 2:": "epoch seconds",
  "tls-policies": {
    ".valid-example-recipient.com": {
      "min-tls-version": "TLSv1.1"
    }
  },
  "acceptable-mxs": {
    "valid-example-recipient.com": {
      "accept-mx-domains": [ ".valid-example-recipient.com" ]
    }
  }

}