Email Formats

{
  "mx": [
    "10 kcmail.kotra.or.kr.",
    "5 spam.kotra.or.kr."
  ],
  "spf": [
    "v=spf1 ip4:210.223.88.8 ip4:210.223.88.10 ip4:210.223.88.11 ip4:210.223.88.35 ip4:210.223.88.14 ip4:27.101.224.92 -all"
  ]
}