Email Formats

{
  "mx": [
    "10 d294696a.ess.barracudanetworks.com.",
    "10 d294696b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx a ip4:173.9.26.1/28 include:spf.ess.barracudanetworks.com ~all"
  ]
}