Email Formats

{
  "mx": [
    "10 alln-mx-01.cisco.com.",
    "20 rcdn-mx-01.cisco.com.",
    "30 aer-mx-01.cisco.com."
  ],
  "spf": [
    "v=spf1 include:_spf.google.com include:mktomail.com ~all"
  ]
}