Email Formats

{
  "mx": [
    "10 mx.usa.net.",
    "20 mx.ct.mbox.net."
  ],
  "spf": [
    "v=spf1 ip4:76.77.159.18 ip4:216.117.40.20 ip4:173.226.182.114 ip4:83.125.137.67 include:spf.usa.net include:_spf.google.com include:zcsend.net ~all"
  ]
}