Email Formats

{
  "mx": [
    "10 mx.ntt.pl."
  ],
  "spf": [
    "v=spf1 mx ptr ip4:217.97.138.67 ip4:94.42.191.162 ip4:94.42.191.166 ip4:94.42.191.90 ip4:94.42.191.168 ip4:193.238.14.136 ip4:193.238.14.142 ip4:193.238.14.130 a:www.nttonline.pl a:mail.ntt.pl a:mx.ntt.pl -all"
  ]
}