Email Formats

{
  "mx": [
    "10 mx1.dnp.co.jp.",
    "10 mx2.dnp.co.jp.",
    "10 mx3.dnp.co.jp.",
    "10 mx4.dnp.co.jp."
  ],
  "spf": [
    "v=spf1 include:spf.securemx.jp +ip4:202.214.150.2 +ip4:202.214.150.3 +ip4:210.133.104.2 +ip4:210.133.104.3 include:spf.protection.outlook.com -all"
  ]
}