Email Formats

{
  "mx": [
    "20 d127502a.ess.barracudanetworks.com.",
    "30 d127502b.ess.barracudanetworks.com."
  ],
  "spf": [
    "v=spf1 a:mx01.shengsiong.com.sg include:amazonses.com mx -all"
  ]
}