Email Formats

{
  "mx": [
    "20 etrn.biz.net.id.",
    "5 mail.korindo.co.id.",
    "3 spam.korindo.co.id."
  ],
  "spf": [
    "v=spf1 ip4:16.78.193.249 ip4:16.79.16.192 ~all"
  ]
}