Email Formats

{
  "mx": [
    "20 sguard2.kisti.re.kr.",
    "10 sguard.kisti.re.kr.",
    "20 sguard1.kisti.re.kr."
  ],
  "spf": [
    "v=spf1 mx ip4:203.250.96.0/19 ip4:203.250.128.0/17  ip4:150.183.0.0/16 include:_spf1.kisti.re.kr include:_spfblocka.toast.com  -all"
  ]
}