Email Formats

{
  "mx": [
    "20 d300467b.ess.barracudanetworks.com.",
    "10 d300467a.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 ip4:207.89.44.135 include:_spf.google.com include:spf.constantcontact.com ip4:209.222.80.0/21 ~all"
  ]
}