Email Formats

{
  "mx": [
    "5 cmtp.isbmex.com.",
    "6 barracuda.isbmex.com.",
    "10 euq.isbmex.com.",
    "10 correox.isbmex.com.",
    "11 mail2.isbmex.com.",
    "12 mail3.isbmex.com."
  ],
  "spf": [
    "v=spf1 mx a ip4:187.188.88.6 ~all"
  ]
}