Email Formats

{
  "mx": [
    "20 mailbox.deltronix.net.",
    "10 mail4.deltronix.com."
  ],
  "spf": [
    "v=spf1 mx a ptr  ip4:66.172.14.234 ip4:66.172.14.243 ip4:66.172.14.230 ip4:67.231.249.23 ~all"
  ]
}