Email Formats

{
  "mx": [
    "10 d290141a.ess.barracudanetworks.com.",
    "10 d290141b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:65.51.148.15 ip4:65.51.148.16 ip4:65.51.148.21 ~all"
  ]
}