Email Formats

{
  "mx": [
    "21 west.smtp.mx.exch082.serverdata.net.",
    "21 east.smtp.mx.exch082.serverdata.net."
  ],
  "spf": [
    "v=spf1 include:45606481.spf04.hubspotemail.net ip4:192.237.233.63 mx ~all"
  ]
}