Email Formats

{
  "mx": [
    "5 mx3.wincourse.com.",
    "5 mx2.wincourse.com."
  ],
  "spf": [
    "v=spf1 ip4:192.249.114.18 ip4:74.124.214.210 +a +mx +ip4:192.145.239.22 +ip4:173.247.255.101 a:mailon.spamtitan.com -all"
  ]
}