Email Formats

{
  "mx": [
    "10 mx.securemx.jp.",
    "20 mx.securemx.jp."
  ],
  "spf": [
    "v=spf1 include:spf.securemx.jp include:_spf.ir-navi.jp +ip4:210.130.202.0/24 +ip4:163.43.31.39/32 ~all"
  ]
}