Email Formats

{
  "mx": [
    "10 mail1.ncb.com.hk.",
    "10 mail.ncb.com.hk."
  ],
  "spf": [
    "v=spf1 ip4:14.198.176.161 ip4:113.28.158.49 ip4:210.177.228.225/27 ip4:103.49.122.225/27 ip4:202.82.169.225/27 ip4:103.49.123.225/27 -all"
  ]
}