Email Formats

{
  "mx": [
    "10 mail1.webio.pl.",
    "10 mail2.webio.pl.",
    "20 mail3.webio.pl."
  ],
  "spf": [
    "v=spf1 a mx ptr ip4:194.88.154.129/26 ip4:78.131.153.11 -all"
  ]
}