Email Formats

{
  "mx": [
    "10 mx1.sth.nu.",
    "20 mx2.sth.nu.",
    "30 mx3.sth.nu.",
    "40 mx4.sth.nu."
  ],
  "spf": [
    "v=spf1 a mx ip4:83.80.88.78 ip4:217.100.56.106 -all"
  ]
}