Email Formats

{
  "mx": [
    "10 d5433a.ess.barracudanetworks.com.",
    "20 d5433b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx a:mail.ncsei.com ip4:74.84.85.67 ip4:192.199.183.139 -all"
  ]
}