Email Formats

{
  "mx": [
    "10 smtpin01.hft-stuttgart.de.",
    "20 smtpin02.hft-stuttgart.de."
  ],
  "spf": [
    "v=spf1 ip4:193.196.136.0/24 ip4:193.197.232.26/32 ip4:193.197.232.27/32 -all"
  ]
}