Email Formats

{
  "mx": [
    "10 mx.yandex.net.",
    "20 mxa.mailgun.org.",
    "20 mxb.mailgun.org."
  ],
  "spf": [
    "v=spf1 include:mailgun.org ~all",
    "v=spf1 redirect=_spf.yandex.net"
  ]
}