Email Formats

{
  "mx": [
    "50 smtp01.hkma.gov.hk.",
    "70 smtp11.hkma.gov.hk.",
    "100 smtp21.hkma.gov.hk."
  ],
  "spf": [
    "v=spf1 ip4:121.101.168.23 ip4:121.101.168.24 ip4:121.101.172.20 ip4:121.101.168.61 ip4:121.101.168.62 ip4:121.101.172.21 -all"
  ]
}