Email Formats

{
  "mx": [
    "10 esa2.hc196-4.ap.iphmx.com.",
    "10 esa1.hc196-4.ap.iphmx.com.",
    "10 esa4.hc196-4.ap.iphmx.com.",
    "10 esa3.hc196-4.ap.iphmx.com."
  ],
  "spf": [
    "v=spf1 mx ip4:158.182.0.0/16 include:_spf.google.com include:spf.protection.outlook.com include:spf1.hkbu.edu.hk ~all"
  ]
}