Email Formats

{
  "mx": [
    "10 mx.shb.com.vn.",
    "1 mail1.shb.com.vn.",
    "5 mail.shb.edu.vn."
  ],
  "spf": [
    "v=spf1 a mx:shb.com.vn ip4:122.102.112.20 ip4:122.102.112.21 include:spf.protection.outlook.com -all"
  ]
}