Email Formats

{
  "mx": [
    "100 us2.mx1.mailhostbox.com.",
    "100 us2.mx2.mailhostbox.com.",
    "100 us2.mx3.mailhostbox.com."
  ],
  "spf": [
    "v=spf1 ip4:216.37.42.137 include:relay.mailchannels.net +a +mx +ip4:72.9.159.115 ~all"
  ]
}