Email Formats

{
  "mx": [
    "10 d264516a.ess.barracudanetworks.com.",
    "20 d264516b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:209.222.82.252 ip4:147.0.136.188 ~all"
  ]
}