Email Formats

{
  "mx": [
    "10 d335312a.ess.barracudanetworks.com.",
    "15 d335312b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx include:spf.ess.barracudanetworks.com include:spf.constantcontact.com ip4:192.185.4.113 -all"
  ]
}