Email Formats

{
  "mx": [
    "10 mx-dfw.smtp.directrouter.com.",
    "20 mx-lon.smtp.directrouter.com."
  ],
  "spf": [
    "v=spf1 +a +mx include:_spf.createsend.com include:relay.mailchannels.net +ip4:3.136.92.204 ~all"
  ]
}