Email Formats

{
  "mx": [
    "10 filter.onlinespamfilter.nl.",
    "10 filter.onlinespamfilter.com."
  ],
  "spf": [
    "v=spf1 mx ip4:37.74.81.153  ip4:37.97.231.103 include:_spf.calderholding.io include:spf.protection.outlook.com include:spf.ewsoutbound.kpnmail.nl include:spf.ews.kpnxchange.com include:_spf.onlinespamfilter.nl -all"
  ]
}