Email Formats

{
  "mx": [
    "30 lastmx.spamexperts.net.",
    "10 mx.spamexperts.com.",
    "20 fallbackmx.spamexperts.eu."
  ],
  "spf": [
    "v=spf1 +a +mx +ip4:74.220.219.60 ?all"
  ]
}