Email Formats

{
  "mx": [
    "10 d143819a.ess.barracudanetworks.com.",
    "20 d143819b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 ip4:216.164.194.82 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf.constantcontact.com include:sendgrid.net -all"
  ]
}