Email Formats

{
  "mx": [
    "10 d302400a.ess.barracudanetworks.com.",
    "20 d302400b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx a include:mailgun.org include:spf.ess.barracudanetworks.com include:spf.wtghost.com ~all"
  ]
}