Email Formats

{
  "mx": [
    "20 delexpress-com.inbound.emailservice.cc.",
    "30 delexpress-com.inbound.emailservice.co.",
    "10 delexpress-com.inbound.emailservice.io."
  ],
  "spf": [
    "v=spf1 a mx ip4:100.11.174.218 include:spf.us.emailservice.io include:spf.protection.outlook.com include:sendgrid.net ~all"
  ]
}