Email Formats

{
  "mx": [
    "10 mx1.spamcontroller.net.",
    "10 mx2.spamcontroller.net.",
    "10 mx3.spamcontroller.net.",
    "10 mx4.spamcontroller.net."
  ],
  "spf": [
    "v=spf1 a include:spf.acs.com.hk include:spf3.clink.hk include:mailgun.org ~all"
  ]
}