Email Formats

{
  "mx": [
    "5 cdn.corpemail.net.",
    "10 cdn.corp-email.cn.",
    "20 mail.biz-email.net.",
    "30 cnc.biz-email.net."
  ],
  "spf": [
    "v=spf1 include:_s.corp-email.com include:spf.protection.partner.outlook.cn -all"
  ]
}