Email Formats

{
  "mx": [
    "1 mail.tck.it."
  ],
  "spf": [
    "v=spf1 ip4:176.221.55.146 ip4:176.221.55.138 ip4:176.221.55.136 ip4:176.221.55.130 ip4:176.221.55.131 ~all"
  ]
}