Email Formats

{
  "mx": [
    "10 smtp3igsnt.police.gov.hk.",
    "20 smtp3igshk.police.gov.hk."
  ],
  "spf": [
    "v=spf1 include:spf-1.police.gov.hk include:spf-1.egis.gov.hk -all"
  ]
}