Email Formats

{
  "mx": [
    "10 mx1.ptu.pl.",
    "10 mx2.ptu.pl.",
    "110 mx3.ptu.pl."
  ],
  "spf": [
    "v=spf1 a mx ip4:195.238.227.154 ip4:195.238.227.155 ip4:195.238.227.157 ip4:195.238.227.126 ip4:195.238.227.128 -all"
  ]
}