Email Formats

{
  "mx": [
    "10 mail.sierranational.com."
  ],
  "spf": [
    "v=spf1 mx a:smtp.coxmail.com include:mailgun.org include:cxr.spf.a.cloudfilter.net. ip4:68.230.240.0/24 ip4:68.230.241.0/24 ~all"
  ]
}