Email Formats

{
  "mx": [
    "10 nmail2.yna.co.kr.",
    "10 nmail.yna.co.kr.",
    "20 nmail1.yna.co.kr."
  ],
  "spf": [
    "v=spf1 ip4:203.234.152.71 ip4:203.234.152.72  ip4:203.234.152.73 ip4:203.234.152.74 ip4:220.73.174.76 ip4:211.106.66.60 ip4:211.106.66.67 ip4:58.180.33.44 ip4:58.180.33.53 ip4:58.180.33.54 ip4:58.180.17.4 ip4:58.180.17.5 -all"
  ]
}