Email Formats

{
  "mx": [
    "10 smtp11.cez.cz.",
    "10 smtp12.cez.cz.",
    "10 smtp21.cez.cz.",
    "10 smtp22.cez.cz."
  ],
  "spf": [
    "v=spf1 ip4:89.111.73.164/31 ip4:89.111.77.164/31 include:_spf-emailengine.cez.cz include:_spf_aaaa.cez.cz include:_spf3.cez.cz -all"
  ]
}