Email Formats

{
  "mx": [
    "1 MX1.BIZ.MAIL.YAHOO.COM.",
    "5 MX5.BIZ.MAIL.YAHOO.COM."
  ],
  "spf": [
    "v=spf1 include:spf.domain.com v=spf1 include:_spf.mail.yahoo.com -all",
    "v=spf1 +a +mx +ip4:97.74.89.94 ~all"
  ]
}