Email Formats

{
  "mx": [
    "100 mx3.ems.rs.",
    "10 mail.ems.rs.",
    "101 mx2.ems.rs.",
    "101 mx1.ems.rs."
  ],
  "spf": [
    "v=spf1  ip4:91.201.138.76 ip4:91.201.138.77  ip4:91.201.138.78 ip4:91.201.138.79 ip4:91.201.138.254  -all"
  ]
}