Email Formats

{
  "mx": [
    "10 mx10.n-s.cz.",
    "20 mx20.n-s.cz."
  ],
  "spf": [
    "v=spf1 mx a ip4:213.183.12.12 ip4:213.183.12.13 include:emailmachine.cz -all"
  ]
}