Email Formats

{
  "mx": [
    "1 mx2.usacucar.com.br.",
    "2 mx1.usacucar.com.br.",
    "3 mx3.usacucar.com.br."
  ],
  "spf": [
    "v=spf1 a mx ip4:200.181.200.0/26 ip4:177.220.160.232/29 ip4:186.233.189.208/29 include:spf.protection.outlook.com -all"
  ]
}