Email Formats

{
  "mx": [
    "10 ctrcinc-org.mx1.arsmtp.com.",
    "20 ctrcinc-org.mx2.arsmtp.com."
  ],
  "spf": [
    "v=spf1 +a +mx +ip4:50.87.253.185 +ip4:50.87.185.196 +include:_spf.google.com ~all"
  ]
}