Email Formats

{
  "mx": [
    "5 218.98.160.67.",
    "10 mail.masterkong.com.cn."
  ],
  "spf": [
    "v=spf1 mx ip4:218.98.160.67 ip4:218.98.176.67 ip4:223.27.40.2 ip4:104.215.31.225 ip4:162.14.81.142 -all"
  ]
}