Email Formats

{
  "mx": [
    "10 mailgw02.host.it.",
    "10 mailgw01.host.it."
  ],
  "spf": [
    "v=spf1 include:_spf.firebasemail.com ~all",
    "v=spf1 mx a include:spf.host.it -all"
  ]
}