Email Formats

{
  "mx": [
    "10 mx1c28.carrierzone.com.",
    "11 mx2c28.carrierzone.com.",
    "12 mx3c28.carrierzone.com.",
    "13 mx4c28.carrierzone.com."
  ],
  "spf": [
    "v=spf1 include:spfc28.carrierzone.com include:_spf.createsend.com include:mailgun.org ~all"
  ]
}