Email Formats

{
  "mx": [
    "10 d15074a.ess.barracudanetworks.com.",
    "20 d15074b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:68.228.8.39 ip4:68.228.8.46 -all"
  ]
}