Email Formats

{
  "mx": [
    "20 d313479b.ess.barracudanetworks.com.",
    "0 d313479a.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 a mx ip4:108.59.36.69 include:ess.barracudanetworks.com ~all"
  ]
}