Email Formats

{
  "mx": [
    "10 d137396a.ess.barracudanetworks.com.",
    "20 d137396b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:167.206.4.199/24 ip4:71.183.122.146 ip4:74.208.245.223 ip4:44.239.161.167"
  ]
}