Email Formats

{
  "mx": [
    "10 tr-gw-natus-2.natus.de.",
    "20 tr-gw-natus-1.natus.de."
  ],
  "spf": [
    "v=spf1 ip4:217.7.66.190 ip4:87.128.43.104 ip4:217.7.66.188 ip6:2003:a:37f:ab3d::1:1 -all"
  ]
}