Email Formats

{
  "mx": [
    "10 smtpa1.gw.emsd.gov.hk.",
    "10 smtpb1.gw.emsd.gov.hk.",
    "10 smtpc1.gw.emsd.gov.hk.",
    "10 smtpd1.gw.emsd.gov.hk."
  ],
  "spf": [
    "v=spf1 ip4:202.153.13.187 ip4:202.153.13.188 ip4:202.153.13.189 ip4:202.153.8.111 ip4:202.153.9.21 ip4:202.153.9.22 ip4:202.153.9.23 ip4:202.153.9.24 ip4:202.153.9.25 ip4:202.153.9.26 ip4:202.153.9.27 ip4:202.153.9.28 mx ~all"
  ]
}