Email Formats

{
  "mx": [
    "10 d172537a.ess.barracudanetworks.com.",
    "20 d172537b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1  +a +mx +ip4:8.29.155.147 include:relay.mailchannels.net ~all"
  ]
}