Email Formats

{
  "mx": [
    "20 mx-biz.mail.am0.yahoodns.net."
  ],
  "spf": [
    "v=spf1 +a +mx include:_spf.bigcommerce.com a:accertify.com ip4:163.123.137.7/32 ptr:yahoo.com include:authsmtp.com -all"
  ]
}