Email Formats

{
  "mx": [
    "10 mx.usa.net.",
    "20 mx.ct.mbox.net."
  ],
  "spf": [
    "v=spf1 mx a ip4:23.253.149.235 include:spf.mandrillapp.com include:mailgun.org include:spf.usa.net include:spf.workfront.com include:spf.protection.outlook.com -all"
  ]
}