Email Formats

{
  "mx": [
    "0 mainspringresourcing.com."
  ],
  "spf": [
    "v=spf1 include:relay.mailchannels.net +a +mx +ip4:216.119.142.243 +ip4:75.98.171.128 +ip4:18.220.232.66 ~all"
  ]
}