Email Formats

{
  "mx": [
    "10 concrete-hk.mail.protection.outlook.com."
  ],
  "spf": [
    "v=spf1 mx a ip4:62.134.201.74 ip4:199.87.118.202 ip4:20.93.177.19 ip4:20.93.222.28 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:spf.protection.outlook.com ~all"
  ]
}