Email Formats

{
  "mx": [
    "10 nashvilleopera-org.mx1.arsmtp.com.",
    "20 nashvilleopera-org.mx2.arsmtp.com."
  ],
  "spf": [
    "v=spf1 include:spf.protection.outlook.com +include:_spf.e2ma.net -all"
  ]
}