Email Formats

{
  "mx": [
    "10 mailsrv1.shibaura-it.ac.jp.",
    "10 mailsrv0.shibaura-it.ac.jp."
  ],
  "spf": [
    "v=spf1 +ip4:202.18.64.0/24 +ip4:202.18.120.0/23 include:_spf.google.com include:spf.protection.outlook.com +ip4:150.66.59.44/32 +ip4:150.66.55.197/32 ip4:58.191.47.9/32 ip4:150.66.59.73/32 include:_spf.fireeyecloud.com include:mail.ma-jin.jp ~all"
  ]
}