Email Formats

{
  "mx": [
    "0 d319454a.ess.barracudanetworks.com.",
    "5 d319454b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 a mx include:spf.ess.barracudanetworks.com ip4:12.37.4.18 a:mail1.rapcoinc.com -all"
  ]
}