Email Formats

{
  "mx": [
    "10 mx10.surfmailfilter.nl.",
    "10 mx11.surfmailfilter.nl."
  ],
  "spf": [
    "v=spf1 a ip4:5.172.45.224/27 include:_spf.surfmailfilter.nl include:_spf.maastrichtuniversity.nl include:spf.protection.outlook.com -all"
  ]
}