Email Formats

{
  "mx": [
    "17 sfcmaila.sfc.hk.",
    "18 sfcmaila1.sfc.hk.",
    "10 sfcmail2.sfc.hk.",
    "10 sfcmail1.sfc.hk.",
    "50 sfcmailb.sfc.hk."
  ],
  "spf": [
    "v=spf1 mx a ip4:202.131.76.201/26 ip4:118.143.81.214/26 ip4:202.131.64.224/27 ip4:210.3.64.160/28 ip4:175.45.13.192/26 include:_spf.createsend.com include:spf.protection.outlook.com ~all"
  ]
}