Email Formats

{
  "mx": [
    "10 heartandvascular-com-au.p10.mxthunder.com.",
    "20 heartandvascular-com-au.p20.mxthunder.net.",
    "30 heartandvascular-com-au.p30.mxthunder.net.",
    "40 heartandvascular-com-au.p40.mxthunder.net."
  ],
  "spf": [
    "v=spf1 mx a include:spf.protection.outlook.com include:sendgrid.net ip4:103.195.52.237 -all"
  ]
}