Email Formats

{
  "mx": [
    "10 d287089a.ess.barracudanetworks.com.",
    "20 d287089b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx a include:spf.constantcontact.com include:spf.renweb.com include:spf.ess.barracudanetworks.com include:spf.wtghost.com -all"
  ]
}