Email Formats

{
  "mx": [
    "50 vietnamairlines-com.mail.protection.outlook.com.",
    "10 mail03.vietnamairlines.com.",
    "10 mail02.vietnamairlines.com.",
    "10 mail01.vietnamairlines.com.",
    "10 mail04.vietnamairlines.com."
  ],
  "spf": [
    "v=spf1 ip4:183.90.160.208/28 include:spf.protection.outlook.com include:_spf.salesforce.com ~all"
  ]
}