Email Formats

{
  "mx": [
    "10 d255880a.ess.barracudanetworks.com.",
    "20 d255880b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx include:sendgrid.net include:spf.protection.outlook.com ~all"
  ]
}