Email Formats

{
  "mx": [
    "10 d120717a.ess.barracudanetworks.com.",
    "20 d120717b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 include:spf.constantcontact.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spfhost.messageprovider.com ip4:64.235.144.0/20 ip4:209.222.80.0/21 -all"
  ]
}