Email Formats

{
  "mx": [
    "10 mail1.bigboard.cz.",
    "30 mail2.bigboard.cz."
  ],
  "spf": [
    "v=spf1 a mx a:mail1.bigboard.cz a:mail2.bigboard.cz include:ip4:89.22.0.0/16 ip4:109.123.210.0/24 ip4:217.11.242.0/24 ip4:81.0.235.0/24 ip4:31.30.82.218/32 ip4:82.208.18.0/24 ip4:85.239.227.0/24 ip4:82.208.7.0/24 ip4:185.219.169.175 ~all"
  ]
}