Email Formats

{
  "mx": [
    "10 mx1.krystal.uk.",
    "20 mx2.krystal.uk."
  ],
  "spf": [
    "v=spf1 include:relay.k.io ip4:77.72.1.23 ip4:38.113.1.0/24 ip4:38.113.20.0/24 ip4:65.254.224.0/19 ?all"
  ]
}