Email Formats

{
  "mx": [
    "10 mx00.1and1.com.",
    "11 mx01.1and1.com."
  ],
  "spf": [
    "v=spf1 a mx include:_spf.elasticemail.com include:_spf.google.com include:_spf.perfora.net include:_spf.kundenserver.de ~all"
  ]
}