Email Formats

{
  "mx": [
    "20 mx3.mailfilter.email.",
    "10 mx2.mailfilter.email.",
    "0 mx1.mailfilter.email."
  ],
  "spf": [
    "v=spf1 +a +mx +a:rhubarb.twmhost.com +ip4:52.237.216.55 include:mailgun.org include:spf.protection.outlook.com ~all"
  ]
}