Email Formats

{
  "mx": [
    "10 mxa.mailgun.org.",
    "10 mxb.mailgun.org."
  ],
  "spf": [
    "v=spf1 include:mailgun.org ~all",
    "v=spf1 ip4:204.130.255.0/24 ip4:207.173.160.0/23 ~all"
  ]
}