Email Formats

{
  "mx": [
    "100 st1-o2.htbackup.com.",
    "10 st2.htbackup.com.",
    "10 st1.htbackup.com.",
    "100 st2-o2.htbackup.com."
  ],
  "spf": [
    "v=spf1 mx ip4:64.90.166.110 ip4:192.199.242.37 ~all"
  ]
}