Email Formats

{
  "mx": [
    "20 mx2.kmu.edu.tw.",
    "10 mx1.kmu.edu.tw."
  ],
  "spf": [
    "v=spf1 ip4:163.15.151.0/24 ip4:163.15.152.0/21 ip4:163.15.160.0/20 ip4:163.15.176.0/22 ip4:163.15.180.0/24 include:_spf.google.com ?all"
  ]
}