Email Formats

{
  "mx": [
    "10 d170694b.ess.barracudanetworks.com.",
    "0 d170694a.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:24.55.194.224/29 ip4:216.8.159.9 ~all"
  ]
}