Email Formats

{
  "mx": [
    "10 bratislava.gefos.sk.",
    "20 praha.gefos.cz.",
    "30 mail.axis.cz."
  ],
  "spf": [
    "v=spf1 mx ip4:195.168.115.134 ip4:217.11.237.170 ip4:31.7.243.166 ?all"
  ]
}