Email Formats

{
  "mx": [
    "5 tcl-com.corpsmtp.net.",
    "10 tcl-com.corpsmtp.cn.",
    "15 mdn.corpemail.net.",
    "20 mdn.corp-email.cn."
  ],
  "spf": [
    "v=spf1 include:spf.tcl.com -all"
  ]
}