Email Formats

{
  "mx": [
    "10 mx01.1and1.com.",
    "20 mx00.1and1.com."
  ],
  "spf": [
    "v=spf1 include:_spf.perfora.net include:_spf.customer-server.com ~all",
    "v=spf1 include:relay.mailchannels.net ~all"
  ]
}