Email Formats

{
  "mx": [
    "10 mail.swisscom.com.",
    "30 mail20.swisscom.com.",
    "20 mail10.swisscom.com."
  ],
  "spf": [
    "v=spf1 include:spf.swisscom.com ip4:51.254.189.37  -all"
  ]
}