Email Formats

{
  "mx": [
    "10 hku-nsp2.hku.hk.",
    "10 hku-nsp1.hku.hk."
  ],
  "spf": [
    "v=spf1 include:spf.protection.outlook.com ip4:147.8.2.0/24 ip4:147.8.145.0/24 ip6:2001:ce0:2201:101:0:ffff::/121 ~all"
  ]
}