Email Formats

{
  "mx": [
    "10 interface.ca.1.0001.arsmtp.com.",
    "20 interface.ca.2.0001.arsmtp.com."
  ],
  "spf": [
    "v=spf1 mx a ptr ip4:208.69.12.42 ip4:208.69.12.44 ?all"
  ]
}