Email Formats

{
  "mx": [
    "10 mx10.mailspamprotection.com.",
    "20 mx20.mailspamprotection.com.",
    "30 mx30.mailspamprotection.com."
  ],
  "spf": [
    "v=spf1 a mx include:mktomail.com include:spf.mandrillapp.com ~all"
  ]
}