Email Formats

{
  "mx": [
    "0 mail.sturm.ch."
  ],
  "spf": [
    "v=spf1 +a +mx +ip4:109.71.96.11 +ip4:74.115.48.0/22 +ip4:199.34.228.0/22 +ip4:194.126.200.0/24 +ip4:149.126.0.0/21 -all"
  ]
}