Email Formats

{
  "mx": [
    "10 d175464a.ess.barracudanetworks.com.",
    "20 d175464b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 a mx ptr include:spf.ess.barracudanetworks.com ip4:180.150.127.16 ip4:180.150.84.56/29 ~all"
  ]
}