Email Formats

{
  "mx": [
    "10 d171808a.ess.barracudanetworks.com.",
    "20 d171808b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 a mx ip4:66.147.240.0/20 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all"
  ]
}