Email Formats

{
  "mx": [
    "10 polyu-edu-hk.mail.protection.outlook.com."
  ],
  "spf": [
    "v=spf1 include:spf.protection.outlook.com include:spf1.polyu.edu.hk include:spf2.polyu.edu.hk include:spf3.polyu.edu.hk a mx ~all"
  ]
}