Email Formats

{
  "mx": [
    "20 mx-biz.mail.am0.yahoodns.net.",
    "30 mx-biz.mail.am0.yahoodns.net."
  ],
  "spf": [
    "v=spf1 ip4:67.195.204.83 ip4:69.16.196.157 include:zenith-express.com include:ptr:yahoo.com include:ptr:yahoo.net -all"
  ]
}