Email Formats

{
  "mx": [
    "10 mxb.mailgun.org.",
    "10 mxa.mailgun.org."
  ],
  "spf": [
    "DATA=v=spf1 include:_spf.google.com include:_spf.mail.yahoo.com ~all",
    "v=spf1 include:mailgun.org ~all"
  ]
}