Email Formats

{
  "mx": [
    "5 mailin.mx-hub.cz.",
    "5 mailin.mx-hub.eu.",
    "5 mailin.mx-hub.sk.",
    "5 mailin.mx-hub.net."
  ],
  "spf": [
    "v=spf1 a mx include:_spf.nameserver.sk -all"
  ]
}