Email Formats

{
  "mx": [
    "10 mail.nasmedia.co.kr.",
    "20 spam.nasmedia.co.kr."
  ],
  "spf": [
    "v=spf1 ip4:121.134.243.50 ip4:121.134.243.51 ip4:13.124.111.122 ip4:13.209.164.248 ip4:3.35.115.98 ip4:3.34.251.107 ~all"
  ]
}