Email Formats

{
  "mx": [
    "10 d303516a.ess.barracudanetworks.com.",
    "20 d303516b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx a ip4:66.109.34.52 include:spf.ess.barracudanetworks.com -all"
  ]
}