Email Formats

{
  "mx": [
    "10 mx.ct.mbox.net.",
    "5 mx.usa.net."
  ],
  "spf": [
    "v=spf1 include:spf.cashedge.com include:spf.protection.outlook.com include:spf.usa.net include:servers.mcsv.net include:sendgrid.net ~all"
  ]
}