Email Formats

{
  "mx": [
    "20 mail.smartcontainer.com.mx.",
    "10 mail.smartcontainer.com.mx."
  ],
  "spf": [
    "v=spf1 ip4:174.136.53.254 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx +mx +a +ip4:72.249.55.60 ~all"
  ]
}