Email Formats

{
  "mx": [
    "0 d276757a.ess.barracudanetworks.com.",
    "1 d276757b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 ip4:67.53.28.30 include:spf.ess.barracudanetworks.com -all"
  ]
}