Email Formats

{
  "mx": [
    "10 mmail.ksd.or.kr."
  ],
  "spf": [
    "v=spf1 ip4:210.223.49.142 ip4:210.223.49.209 ip4:210.223.49.210 ip4:58.102.135.209 ip4:58.102.135.210 ip4:58.102.135.219 ip4:58.102.135.220 ip4:58.102.135.221 -all"
  ]
}