Email Formats

{
  "mx": [
    "10 mail.polskielng.pl.",
    "10 mail2.polskielng.pl.",
    "20 mail3.polskielng.pl."
  ],
  "spf": [
    "v=spf1 a mx ip4:195.246.216.96 ip4:195.205.163.137 ip4:195.246.216.95 -all"
  ]
}