Email Formats

{
  "mx": [
    "50 mail.shinhan.com."
  ],
  "spf": [
    "v=spf1 ip4:59.7.252.233 ip4:125.130.60.52 ip4:59.12.171.231 ip4:125.130.60.30 ip4:125.130.60.244 include:_spfb.shinhan.com include:_spfa.shinhan.com ~all"
  ]
}