Email Formats

{
  "mx": [
    "25 utmail4.nc.u-tokyo.ac.jp.",
    "50 utmail5.nc.u-tokyo.ac.jp.",
    "30 utmail3.nc.u-tokyo.ac.jp."
  ],
  "spf": [
    "v=spf1 include:spf0.cert.u-tokyo.ac.jp -all"
  ]
}