Email Formats

{
  "mx": [
    "10 d66576b.ess.barracudanetworks.com.",
    "5 d66576a.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 mx ip4:50.73.226.33/32 ip4:65.246.41.3/32 ip4:8.18.62.3/32 include:_spf.psm.knowbe4.com -all"
  ]
}