Email Formats

{
  "mx": [
    "10 mail.sth.org.hk.",
    "5 sth-org-hk.mail.protection.outlook.com.",
    "20 mail2.sth.org.hk."
  ],
  "spf": [
    "v=spf1 ip4:202.130.114.235 ip4:202.130.114.236 include:spf.protection.outlook.com ~all"
  ]
}