Email Formats

{
  "mx": [
    "20 mail4.czech-tv.cz.",
    "10 mail3.czech-tv.cz."
  ],
  "spf": [
    "v=spf1 a mx ip4:85.236.69.30 ip4:85.239.66.10 ip4:85.239.66.51 ip4:85.239.68.68 ip4:85.239.69.56 ip4:207.154.194.238 ip4:85.239.64.55 mx:mail3.czech-tv.cz mx:mail4.czech-tv.cz ~all"
  ]
}