Email Formats

{
  "mx": [
    "10 d302638a.ess.barracudanetworks.com.",
    "11 d302638b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:72.45.235.203 include:ess.barracudanetworks.com ~all"
  ]
}